Two atoms are looking out a plasma window. One atom says, "Hey, I just lost an electron." His friend asks, "Are you sure?" The first atom replies, "Yes, I'm positive."
Why? If you look at the 4 forces described, gravity is actually quite strong. The weak and strong nuclear forces are both extremely short ranged. So they can't influence things over great distances. Gravity and Electromagnetism have infinite ranges using the inverse square law. And the electromagnetic force is far stronger than gravity. But ... there's a problem with electromagnetism. Namely that it has two charges that cancel each other out. And since there's an equal amount of both charges on a macro scale, electromagnetism really doesn't have a huge effect over long distances. But gravity? It may be weak, but there's only one type and it's attractive. So add more mass and the total force increases without limit.
Truly, Gravity sure is a sad character. Last time I talked to him he was living in some slum under Bikini Bottom's trash heap of decaying pineapple tops. Truly sad! I think someone should start a gofundme to help this poor powerless guy :/ ;) :D
The magnetosphere is a force field. It burns up things that fly through it. Although it isn't perfect it is a shield. It stops a lot of things. It repeals it protects it is spherical as well. By my definition we have a giant force field.
My friend I cry when I see intelligent people working in the wrong paradigm, what a waste for humanity. It's like when the police came to look for my mother in law in the wrong lake, how long do you think they searched, and do you think they found the body? In order to find my mother in law they had to look in the right lake, starting with the fact that, and hold on to your braces, there is no space. Universe, space, stars, but even the atomic conception of matter it's all unproven, it's something they have been drilling into us since I was kid when I was reading Asimov, Clarke and Bradbury, I fell for it and lost 30 years on this, I am telling you with all the love in the world, look better look deeper and use your head, but you already are, just not int he right lake.
@@SavageDarknessGames Good thinking, but magnetism will be reacting to metal objects only, electrostatics would be the answer as it attracts anything and moves anything given the right voltage - in zillions volts probably; however in order to offset's earth production of electrostatics (diaelectrics), you would need a generator the size of earth, and that would be if we knew how earth created it's magnetic (dialectric) fields, because it isn't with a molten core, by definition, past the Currie point that this is ever going to happen.
@@SavageDarknessGames How is magnetism made of particles, it's big claim that we cannot prove, even light it's unproven it's made of particles - photons. (The monadic approach was an invention from Leibnitz where atoms = monades, it's a nice story, science ran with it, but again, it is unproven.) Being linguistically proficient in identifying scientific elements doesn't means those scientific elements 1. do exist 2. are used in the right context anyway.
I really love the way you explain things in a calm tone and at just about the right pace. The animations really help visualize the idea. Keep making such wonderful science videos. Subscribed :)
Since i have also read it, I can confirm that you prepared this video after reading Physics of the Impossible. Tbh, I really loved your narrating style. You doubled the fun with your excellent visuals and explanation. Keep it up!
I like to believe that the electrons that race around the nucleus of my atoms act as a kind of "force field" that repels other electrons in other atoms allowing me to stand on the surface of the earth and interact with things. Is the outer shell of an atom a "thin sheet"? Pretty darn thin I would say. Seems like a natural force field already exists.
Step Back History I don't know why so many people hate the David Lynch movie. Yes, it's gritty and weird and doesn't follow the book closely, but those rough edges is what's good about it.
He is hardly a scientist now. He has done nothing with anything science in very long time. His faculty page is basically empty for anything he has done in research
Loved this! Such a fantastic explanation for layman like me. I run a tabletop superhero RPG game and Force Field is the most controversial power that a character can have. We're always having armchair-science debates about it. I'll be sure to share this with my group. Oh, and liked and subbed.
12 tone’s channel is super cool I immediately noticed the shirt how neat I haven’t checked out his merch yet but I love it. I’m a biochem student and I love to nerd out about music theory and play bass as a hobby. I always think those two hobbies as very distinct but doing both of them keeps me sane and curious and I couldn’t imagine my life without the arts and science. I wish I knew the story behind his doodles I don’t know why he draws them that way. Does anyone else know?
I read a paper years ago that documented an electrostatic force field. It was inadvertently created by the manufacturing of thin plastic film. The field was generated by the static charge created by the continuous transport of the thin film across a gap between the machines. Workers reported that a bird flying though the gap bounced off an invisible barrier. When studied it was found the effect depended on very narrow set of atmospheric conditions. I wish I could find the paper but it's been over 10 years since I read it.
Your attitude, moves and expression are fabulous. You could be a great teacher for anyone or with anything :P . love for you and for the force field as Star Trek Discovery has shown :D .
It's funny how usually people rely on animated characters who are cuter than their real person counterpart... But with Up and Atom, it's just the opposite 😂 Good video, thanks for sharing!
We need to deflect solid objects. She said something about the military using it.(pretty sure the military would not need to deflect uv rays anytime soon.
That was very interesting to watch. If I were to guess, among all the impossible things we can see in sci fi, force field doesn't strikes me as the most difficult to make. So, I would say they will probably be a thing in a distant future (or something similar would probably be). There's quiet a few things that I can't buy as being possible (at least within the realm of what we have and know in this world), like a human being going through solid materials or teleportation but Force field doesn't seem too bad.
Interesting! How about interference of electromagnetic waves? Or gravimetric waves, if that is possible. We can now use acoustic wave interference to lift small objects and stuff. This could be the basis of a tractor/repulsor type beam in my imagination. Which might lead to shaped forcefields?? It just seems a shame if we couldn´t do it. Excellent video, by the way!
An old article I read talked about it, a tape factory (accidentally)invented an electrostatic forcefield. Shooting off high amounts of static force as the rollers moved, pushing things away from them. So... Yes, I believe forcefields can and have existed.
Yep I read that same story. It was in I think North or South Carolina at a Scotch tape factory. Morning moisture in the air also had something to do with it as well as X-Rays being emitted at the point where the raw tape material was being pulled off the roll headed to the cutters.
I want anti-gravity first. Back to the Future II promised me anti-gravity cars and they are nearly 4 years late. ITS YOUR KIDS MARTY. SOMETHING'S GOTTA BE DONE ABOUT YOUR KIDS
Also why didn't Marty just go "thanks for the advice, doc, when I have my kids I'll remember to raise them better". Why did they have to go to the future?
Back to the future 2 is just a movie and not a prediction of the future, just a guess as to what could happen. people have made hover device but is much larger than hover board used in movie.
David Weber's Honorverse uses gravity as a shield, sort of. They actually create intense artificial planes of gravity for propulsion of any space-going vessel above the size of a jumbo jet. These fields are so intense that they warp light going through it and tear matter apart. Much weaker fields are used as "sidewalls" to do similar things to photons and gamma rays being used in an offensive manner. They require ridiculously efficient fusion plants to create and the series largely takes place roughly 2000 years ahead of our time, so I don't see us doing that any time soon.
I’m reminded that some of the first tries at AI made scholars realize they didn’t know quite what intelligence was. When someone achieves a force field, they might find it functionally equivalent to a windowpane. Indeed, I gather a windowpane is quite literally a force field. The bits of mass it is built around are a tiny fraction of its volume, and it can be made both transparent and practically impenetrable. It seems to me the true goal is to conjure windowpanes from nothing and dismiss them at will. Maybe that outlook will spark an idea.
Also turning on the image of the Enterprise-D (from Star Trek). They had a technology called a holodeck. Which was described as an advanced use of forcefield technology. Computers able to create simulations that people can actually walk into and interact with (no glasses needed).
create a magnetic field on the outside of the ship and fill it with 1 Eletrostialy charged Sand, dust 2 Cold plasma this provide the effect of a classic force field and would work at stopping lasers and particle beams possibly even missiles and railgun rounds maybe.
When you can comprehend why an electron does not just fall into the nucleus, then you can possibly construct a force field. But you have to start at the foundation of the Universe to figure this out.
Here I suggest a theoretical possibility of a force field. A very dense accumulation of negative mass could probably act as a force field, I guess. It will be able to repel normal bodies, charged or neutral, as long as they have some mass. As for repelling photons, if the negative mass is modelled as a sphere such that it's radius is lesser than the critical radius of the system=2GM/c^2, where G and c have their usual meanings and M is the magnitude of negative mass of the system, the system could in fact repel photons, and therefore light(it would practically be the exact opposite of a black hole).
Great video, as you started i tought about plasma being a candidat as i remambered the different tokomak fusion reactors. They alredy work in a similar way.
Great animations! they are very effective. It is an interesting topic, I wonder what would happen if two force fields collided... I guess they would deflect, so maybe the force field itself is not about stopping objects but rather changing their direction? In that sense maybe gravity points away from the person or object could act as a force field? When I say gravity points I obviously talk from a SciFi point of view, not sure if they would be even possible. Great video, thanks
"But [the electromagnetic force] is completely useless against any insulating material, like rubber or plastic" If that were true, rubber and plastic would fall right through your hand. And not just through your hand, also through the floor. Any piece of rubber and plastic would be in an orbit around the earth's core, eternally falling straight through the earth and back up again, and down again, and up again, etc, without even any friction to slow it down.
David Swenson of 3M Corporation describes an anomaly where workers encountered a strange "invisible wall" in the area under a fast-moving sheet of electrically charged polypropelene film in a factory. This "invisible wall" was strong enough to prevent humans from passing through. A person near this "wall" was unable to turn, and so had to walk backwards to retreat from it. This occurred in late summer in South Carolina, August 1980, in extremely high humidity. Polypropelene (PP) film on 50K ft. rolls 20ft wide was being slit and transferred to multiple smaller spools. The film was taken off the main roll at high speed, flowed upwards 20ft to overhead rollers, passed horizontally 20ft and then downwards to the slitting device, where it was spooled onto shorter rolls. The whole operation formed a cubical shaped tent, with two walls and a ceiling approximately 20ft square. The spools ran at 1000ft/min, or about 10MPH. The PP film had been manufactured with dissimilar surface structure on opposing faces. Contact electrification can occur even in similar materials if the surface textures or micro-structures are significantly different. The generation of a large imbalance of electrical surface-charge during unspooling was therefore not unexpected, and is a common problem in this industry. "Static cling" in the megavolt range! On entering the factory floor and far from the equipment, Mr. Swenson's 200KV/ft handheld electrometer was found to slam to full scale. When he attempted to walk through the corridor formed by the moving film, he was stopped about half way through by an "invisible wall." He could lean all his weight forward but was unable to pass. He observed a fly get pulled into the charged, moving plastic, and speculates that the e-fields might have been strong enough to suck in birds! The production manager did not believe Mr. Swenson's report of the strange phenomena. When they both returned to the factory floor, they found that the "wall" was no longer there. But the production workers had noticed the effect as occurring early in the morning when humidity was lower, so they agreed to try again another day. The second attempt was successful, and early in the morning the field underneath the "tent" was strong enough to raise even the short, curly hair of the production manager. The "invisible wall" effect had returned. He commented that he "didn't know whether to fix it or sell tickets."
I like to believe that the electrons that race around the nucleus of my atoms act as a kind of "force field" that repels other electrons in other atoms allowing me to stand on the surface of the earth and interact with things. Is the outer shell of an atom a "thin sheet"? Pretty darn thin I would say. Seems like a natural force field already exists.
This would be a critical technology for space exploration beyond our solar system. One could easily see this plasma window tech being used as a sort of "navigational deflector" that shunts away small stray particles and dust that. It may not stop weapons, but we still have old-fashioned armor and we can polish some mirrors to deal with the lasers.
We already do it. Using mostly the electromagnetic and strong nuclear strong forces, we make a "relatively" thin force field. We wrap tanks in it and call it armored plating. :)
Idea: really sense shell of negative matter. It repels everything with positive mass, which is everything except the shield itself. The main problem is that it is ludicrously expensive and not exactly transparent.
It's amazing but electromagnetic fields would also be a huge weakness to the field. It would be insane to blow up a ship through its defensive systems with just the right electromagnetic field
That's why I like how in star trek the forcefields are useless if the enemy has some number. You can imagine they have a technology that almost encrypts the magnetic field so that you can't just disrupt the contained energy with your own field? And yet in sciFi they don't have to explain all that detail to us, just take artistic license and all...
E-M force-fields could possibly be made using resonances, where the energy is tuned so that there are nulls and very-high-strength planes, which already happens to radio and radar transmissions at various angles, depending on the antenna shape. By using arrays of many tiny transmitters going off in computer-controlled rapid patterns., you could adjust the nulls (low-spots) and high-power points to any shape you want almost instantly by proper array design and enough raw power output. Since you may also be able to tune the frequency and phase of the signal, this could, with enough energy, computer power and speed, and some fast-replaceable material easily turned into a plasma (a spray cloud around the thing to be protected, in effect), the super-hot spots could be adjusted to be directly in front of any attacking thing, both physical (bullets) or energy (laser) and, if hot enough at those spots (in layered resonances one after the other in the way of the attacker would be best), the plasma could be made opaque against any frequency of laser (tuned to exactly negate it like those sound-killing headphones) or literal;ly vaporize a physical object. You would need A LOT OF POWER, of course.
I like how you explain how and why it does or doesn’t work and why. I always like to know how things work and why. It helps me trust the effectiveness of a strategy or way of doing things working because I don’t just say oh it works but I really understand how and why they work. Thanks for making this video!!
I think it’s possible what if you get Soliders to lie on paper trace around their body, make lightweight bulletproof metal sheild that goes your body, repeals light, lasers, bullets and keeps you Cool inside, by pressing a button you turn on a magnetic force field, the magnet pushes all magnets/metals away, meaning when bullets come at you, bullets will push away/bounce off you, I think this would be a good idea to try bringing to reality, don’t same magnet forces repelled/push apart, meaning if they find out how to make a bullet levitate they’ll understand how to make bullets bounce off n off not if they use the same armour as bulletproof vest outside your lightweight metal body suit it means you can walk through bullets in your immortality body suit bullet/fire proof, when u walk through fire you a cooling gel pad on the inside keeping the metal from getting to hot, as for lasers if you have the outside like a mirror won’t lasers just bounce back n burn the person firing the laser, the back comes off so you can step inside the suit, what u latch the back back on it over laps the edges/cut to haul the back off.as u step inside before putting your arms through the sleeves you turn on the magnetic force pushing all magnets away so on the negative side meaning you’re on the positive side being the inner side, things can levitate off you, when someone shoots u can just push the bullets down
Electromagnetic force can be made into a thin field. The strength (density and size) of an electromagnetic field can be manipulated by changing the strength of electricity or magnets. Also you can form almost any shape of field so long as you have the correct structure of magnets and copper wire. Energy consumption is the main issue other than not working on insulators.
In the original Star Trek they always talked about deflectors and a deflector dish. The idea being that the dish would generate an electro magnetic field around the ship to deflect matter while traveling at high speed. The deflectors had the added benefit of being able to deflect or absorb beams from particle weapons. In other Star Trek series they talk about "polarizing the ship's hull" as the means to deflect interstellar dust and particles, and again having the added benefit of deflecting some energy weapons.
A couple of thoughts.... The strong and weak nuclear forces are carried by particles with mass which limits the distance at which they can have any effect, with the distance determined by the uncertainty principle. So I see two ways to turn these forces into force fields. The first is to manipulate local spacetime or accelerate the force carrying particles to relativistic speeds allowing them to carry the force over larger distances. The second is much more speculative. If force carrying particles somehow had a variable mass, either by having sister particles of varying masses or by some future technology which allows the manipulation of mass somehow, then the forces could act over larger and possibly arbitrary and dialable distances.
I see another issue with the layer approach in addition to not being able to make those things yet at the scales needed. To get layers you'll need pass the outer layer, in this example, plasma, though the laser and carbon nanotubes without disrupting or destroying them... I suspect the answer, if even possible, will be enormous amounts of energy. What we really need to find are Dilithium Crystals :)
If you want something like it 1m abrams with explosive reactive armor with active protection system trofy trophy your close to that but if you add support that protect from jets and missile then you have something like a forcefield
Hmm,we bend light and electron beams using em fields. Hell last I checked we could melt stuff including insulators with em fields. In fact em fields can be so strong they can rip objects apart right down to the atomic level. Which is one of the ways we create plasma.
I don't need to heat the entire surface. Just where it needs to protect. Which, if it is opaque, would match what we normally see in films. I imagine the magnetic field being used to capture the plasma could be manipulated to increase both heat and density of the plasma at a specific location, for only a brief moment.
Thanks for the mnemonic to remember that plasma is positive, because all its children have left home! And I also like Kakus system of Grades of Impossibility. It really helps humans to accomplish stuff when we can phrase it as a grand challenge, with like Life-Extension being Level 1, Levitation/antigrav being a Level 2 Impossibility and non-reletivistic FTL travel being Level 3 etc.
I bet that we will find ways to build force fields out of electromagnetism. I.e. to shape magnetic fields and electric currents into fancy and fast-changeable geometries that hang in the air and can exert useful force on objects. The layer doesn't at all need to be super impermeable to be practical. From defence standpoint, it's enough already if it can cheaply be deployed and at least zap intruders hard (the conductive kind). Also merely creating "forcebeams" would open up fantastic possibilities... Not just lightsabers, but maybe even portable quickly deployable bridges, or guideway systems in the air for flying cars, and many more useful forms of everyday telekinesis. Think how even the plasma window idea largely depends on novel ways to manipulate the electromagnetic field at a distance. Can't have all the structure backed by a bulky layer of magnets and call it a "plasma forcefield". It would for the most part be a metal wall then...
I was talking to a guy today that works with lasers to tractor clouds containing hundreds of thousands of atoms. He mentioned how every atom has an electric moment and using the correct wavelength can excite that electric moment of pretty much any material and be used to confine it.
minupulating molecules in the air to a force field is impossible and if possible it will use so much energy but if u implement such technologies on solid objects like amour it is easier to manipulate the molecule to harden and will use less energy.
Just a detail, the electromagnetic force can deflect any normal material, not only what we normally call "magnetic materials". Basically neutrons too have a magnetic "field" , the "neutron magnetic moment". One of the sources of the more powerful magnectic fields what we know of are Neutron Stars. That does not mean that we can turn it into any source of force field, but it's important to remember.
Little late to the party, but theoretically speaking, force fields using gravity and electromagnetism are possible: Gravity is normally attractive, but a region of negative energy can produce antigravity, and therefore a 'bubble' of such negative energy could create what is essentially a force field (and possibly including effectively blocking lasers by redshifting them into a harmless form, although the same effect would also make it more difficult to see out from within the bubble... but on the other hand, it would also enhance any lasers, projectiles, or the like fired from within the bubble). Actually creating such a field with technology is easier said than done, but is required at some point in any solution to Einstein's equations that allow faster than light travel (particularly warp drives) so if a setting has FTL, antigravity shields might well have developed as a spinoff. They might even just simply be a different configuration of the warp field. In the case of electromagnetism... it's electromagnetic fields that prevent solid objects from passing through one another in the first place. So, theoretically, all you'd need is to be able to form a configuration of electromagnetic fields that mimics the tight fields found within a solid object and you'd be good to go. Now, actually achieving that without actually having a solid object there is, again, easier said than done by technological means - plasma windows are probably the closest we've achieved, and in that case you've still got baryonic matter there to provide the actual barrier rather than it being purely generated by electromagnetic fields. Some science fiction, however, does explicitly call them 'plasma shields', so maybe this is exactly what they have in mind. In most science fiction shields aren't actually infallible, but instead something that either reduces the strength of hits or absorbs a certain amount before collapsing, so plasma windows not being a perfect defence doesn't disqualify them. It's also worth noting that in many space science fiction settings, weapons that look like, or even are called 'lasers' are actually some form of plasma bolt (Star Wars - the plasma is excited using a laser, hence why they're called "laser cannons", but they're actually plasma bolts) or particle beam (example: Star Trek phasers), so not blocking lasers might not be a major issue. In the case of Violetta from the Incredibles... superhero abilities of that nature are essentially magic. Perhaps her force fields are one of the above because magic - she doesn't need to have a technological solution, she just gestures and wills the forcefield into existance and the right configuration of electromagnetic fields just happens. And if it's magic, it could magically adjust to incoming light at harmful intensities (ie, laser weapons) by assuming a configuration that blocks that frequency. One other possibility that could apply in space combat is to use a magnetic field to hinder attacks with plasma and charged particle beams, similar to how the Earth's own magnetic field helps protect life (and the atmosphere) from radiation, the solar wind, and so on. Such an approach, however, would probably make the ship an easier target for magnetically accelerated ferrous projectiles such as from railguns.
I like sci-fi force-fields, but I also know how most of them are portrayed would be impossible to duplicate. Having a single, paper-thin layer would be impossible, and I think it was unfair of this video to use just that one example, as sci-fi has been known to deploy force fields in multiple layers and thicknesses. Being the not-physicist that I am, I think that if you wanted to protect a ship in space (um, this would not work under gravity and/or within an atmosphere), you would have several layers of alternating-frequency electromagnetic fields around the ship, and then just before an engagement a cloud of reflective material is puffed or sprayed out within these EM fields. That way the EM field repulses metallic objects such as bullets and missiles, and the chaff of reflective solid particles can _reduce_ the effectiveness of lasers, masers and plasma balls/bolts. The problem is, for this to work multiple rounds of this stored reflective debris field would be needed to maintain constant protection, and if the ship moved the EM field might not be strong enough to keep them moving in the same direction as the ship. Your own ship would have to be protected from the high levels of EM to ensure your own hull and electronics don't become a victim of your own defense! Also, having an intentional debris field around your ship might both interfere with sensors, and/or be as much a hazard to your hull and windows (aka buckshot from a shotgun) as it is to incoming fire! Additionally, once combat operations have ceased, and the EM field is removed, getting clear of your own debris field would be hazardous and difficult at any speed. The science-fiction novel _The Forever War_ (1974) pictured human space warships that used a Bussard ram-scoop to pickup interstellar gasses as the ship traveled at relativistic speeds and redirect that to power kilometer-thick EM fields in front of the ship. The EM fields would reflect- or rather use multiple fields to artificially polarize- small random dust particles (which then bounce off of inner layers of reverse-polarized fields) but not larger objects like meteors, and so the ship would still have to steer around those to prevent near-light-speed impacts. Another possibility would be the [fan dubbed] 'fairy dust' approach seen in the 2007 _anime_ series, _Mobile Suit Gundam 00._ The protagonist paramilitary organization Celestial Being has a perpetual-energy machine called a GN Drive that produces naturally-occurring GN Particles. They protect their mobile suits (humanoid robots) and space vehicles from attack and physical damage by having microscopic holes in their hulls distribute GN Particles through a network of tubules with their inner structures directly from the GN Drive. The bulky mobile suit Gundam Virtue and mothership _Ptolemaios_ takes this to another level by having dedicated GN Field emitters built into their hulls that directly store and emit concentrated GN Particles _en mass._ The various Beam Sabers and Beam [guns] used by Celestial Being are just magnetic bottles of GN Particles that are both concentrated and released in controlled bursts. Aside from the name of this technology and how it generates energy in the _anime,_ an alternate realistic force field might be to release a cloud of energetic particles (such as, yes, plasma) around your ship, and then contain it within a magnetic field. The concentration would have to be significantly dense enough that you might actually see the cloud around the ship! The downside is that this bottle of particles is just as likely to eat away at the hull of your own ship!
Do force fields block the negative effect of the positron storm? It's good to have a way to defend hospitals with newborns that can't be fluoridated. If we had fluorescent lights that were on the rooves of houses that lit when there's a CME would it also generate electricity for the house? Also, would a force field not bound by gravity form a sphere as a natural state? Like in microgravity how water is a sphere.
I think the first step in answering this question is acknowledging that "force field" is a misnomer for simply "transparent shields". This would save a lot of time. But science fiction often puts another more stringent requirement on force fields: they should be selectively permeable (like a cell membrane). This could be as simple as opening a temporary gap that would allow your shots to go through, though writers' plot devices hide the weakness in this approach.
Actually gravity would be a great force field. If we find and can manipulate gravitons to create negative gravity or even ultra-dense fields they would easily be able to block any object because in essence gravity warps space and if you warped it so extremely (like into a thin black hole type density shield) you could prevent anything from traversing that warped space.
Tesla had supposedly invented a force-field near the end of his life, but it was theoretical since he didn't have the funding to test it. It consisted of multiple towers that you would set up along the borders of your country spaced 1 mile apart (I can't remember the exact distance). Then when you turned them on each tower would synchronize with the two nearest towers, this produced a barrier-field that would repel invaders both on land and in the air. The idea being that this would prevent future wars.
"Magnetic fields can't really be turned into thin planes" No, but you don't need to. Instead, you just harden the other equipment in the area against EM radiation, and blast away. A human body can take quite a lot of a gaussing, and it has the added benefit of disarming most foes, as a magnetic field strong enough to stop physical motion through it will also make an MRI look like a fridge magnet.
Right. It's important in nuclear fusion. There are force fields, which in free space is the photon about the light ray tensor, in John Dalton's atom shell is the tron cone duet portal, and in the nucleus is the column of Tron related to neutrinos. Resonant frequency applied to the electron will pass more freely to the neutron and reduce energy requirements for fusion.
Took me three seconds on Google to find this: The Shark Shield works by emitting low-frequency electrical fields from either an ankle bracelet, leg strap for scuba divers...
Gravity can easily be used to make a force field, and has been used for just that in the physics-based sandbox game 'Space Engineers'. In the game, one of the science fictional devices you can use in your building is a gravity generator - it is there so you can give a starship a localized 'down', just as we see on countless science fiction shows, like 'Star Trek'. Clever builders have set up ships that have gravity generators with defined fields. One field pulls toward the ship - making a localized 'down' in that direction, while the other field pulls away from the ship - a 'down' away from the ship. By cleverly placing the two directional localized gravity fields, the builders create a space where objects - little rocks, bits of metal - are pulled toward the ship, and just as quickly pulled away. The bits of trash become trapped between two opposing 'downs' that effectively keep the particles within a plane. That plane of bits and bobs becomes a barrier which is deadly to matter. It is a wall of debris that acts like a blender and a surface which blocks and ravages anything it comes into contact with. If it were ever possible to generate gravity - or attractive fields of any type - and then apply this trick, the result would be a plane where matter could be suspended and trapped by forces which render it like a dangerous wall. A force field.
plasma is just extra electrons. Lots of people play with plasma. Fire is plasma. some plasmas are more reactive then others depending on its electron mass making potentcial im thinking.
Two atoms are looking out a plasma window. One atom says, "Hey, I just lost an electron." His friend asks, "Are you sure?" The first atom replies, "Yes, I'm positive."
😂😂😂😂😂
This deserves more likes
@@kalvincochran9505fr
Is it supposed to be funny?
@@uno2326 focus on the Yes I'm positive part... Otherwise rewatch the video to where she explains what plasma is made of.
I love how dejected Gravity was when you took his pencil.
Lol
I felt so bad for that gravity force
Why? If you look at the 4 forces described, gravity is actually quite strong.
The weak and strong nuclear forces are both extremely short ranged. So they can't influence things over great distances.
Gravity and Electromagnetism have infinite ranges using the inverse square law. And the electromagnetic force is far stronger than gravity. But ... there's a problem with electromagnetism. Namely that it has two charges that cancel each other out. And since there's an equal amount of both charges on a macro scale, electromagnetism really doesn't have a huge effect over long distances.
But gravity? It may be weak, but there's only one type and it's attractive. So add more mass and the total force increases without limit.
Truly, Gravity sure is a sad character. Last time I talked to him he was living in some slum under Bikini Bottom's trash heap of decaying pineapple tops. Truly sad! I think someone should start a gofundme to help this poor powerless guy :/ ;) :D
I did too. Gravity was all like "hey you wanna go for coffee" and she was all "nah I got my own thermos flask thanks". Bro looked beaten.
thats not how it works
Dark energy/Dark matter stole his girlfriend
Which makes me think that we could make a force field using these properties
Glad I got to show off my glasses that secretly block laser beams!
Haha must feel nice being a super hero :)
@Shanaya Kaur Australia.
The magnetosphere is a force field. It burns up things that fly through it. Although it isn't perfect it is a shield. It stops a lot of things. It repeals it protects it is spherical as well. By my definition we have a giant force field.
Correct and if we develope a emf emitter stronger than electromagnets, we could in theroy create a thin field of emf at high particle density.
My friend I cry when I see intelligent people working in the wrong paradigm, what a waste for humanity. It's like when the police came to look for my mother in law in the wrong lake, how long do you think they searched, and do you think they found the body? In order to find my mother in law they had to look in the right lake, starting with the fact that, and hold on to your braces, there is no space. Universe, space, stars, but even the atomic conception of matter it's all unproven, it's something they have been drilling into us since I was kid when I was reading Asimov, Clarke and Bradbury, I fell for it and lost 30 years on this, I am telling you with all the love in the world, look better look deeper and use your head, but you already are, just not int he right lake.
@@SavageDarknessGames Good thinking, but magnetism will be reacting to metal objects only, electrostatics would be the answer as it attracts anything and moves anything given the right voltage - in zillions volts probably; however in order to offset's earth production of electrostatics (diaelectrics), you would need a generator the size of earth, and that would be if we knew how earth created it's magnetic (dialectric) fields, because it isn't with a molten core, by definition, past the Currie point that this is ever going to happen.
@@SavageDarknessGames How is magnetism made of particles, it's big claim that we cannot prove, even light it's unproven it's made of particles - photons. (The monadic approach was an invention from Leibnitz where atoms = monades, it's a nice story, science ran with it, but again, it is unproven.)
Being linguistically proficient in identifying scientific elements doesn't means those scientific elements 1. do exist 2. are used in the right context anyway.
@@thewizardsofthezoo5376 try the double slit experiment with a charge emp burst
Dash: HEY NO FORCEFIELDS!!!!
Violet : *You started it*
i didnt get this reference😂😅😅
@@anmolsinghal484 it's from the movie The Incredibles
@@anmolsinghal484 it's from the incredibles
thanks😂
I love these animations!
Thank you! Means a lot coming from the master of animations :)
Not only the animations !
Every night before I go to sleep i get my phone and learn something from this channel.
LOVE FROM BANGLADESH 🙏
I really love the way you explain things in a calm tone and at just about the right pace. The animations really help visualize the idea. Keep making such wonderful science videos. Subscribed :)
Try Physics Girl!
Since i have also read it, I can confirm that you prepared this video after reading Physics of the Impossible. Tbh, I really loved your narrating style. You doubled the fun with your excellent visuals and explanation. Keep it up!
Electrified soap bubbles (with floaty nanomaterial)
I like to believe that the electrons that race around the nucleus of my atoms act as a kind of "force field" that repels other electrons in other atoms allowing me to stand on the surface of the earth and interact with things. Is the outer shell of an atom a "thin sheet"? Pretty darn thin I would say. Seems like a natural force field already exists.
Props for the clip from Dune
Step Back History Damn! You beat me to it!
I have put at least 2 Dune references in my videos. I don't mess around.
Step Back History I don't know why so many people hate the David Lynch movie. Yes, it's gritty and weird and doesn't follow the book closely, but those rough edges is what's good about it.
Gritty and weird kinda defines Dune... and David Lynch.
Thank you! Someone on my twitter recommended I use it :) Glad you liked it! It did make me realize how far special effects have come...
Michio Kaku is one of my absolute favorite scientists. Just discovered your channel.......Awesome. (corrected)
:)))
As opposed to one of your relative scientists?
@Toby Henderson yeah, not really a 'scientist' tho, is he... :p
Right. Have you read any of his books
He is hardly a scientist now. He has done nothing with anything science in very long time. His faculty page is basically empty for anything he has done in research
Loved this! Such a fantastic explanation for layman like me. I run a tabletop superhero RPG game and Force Field is the most controversial power that a character can have. We're always having armchair-science debates about it. I'll be sure to share this with my group. Oh, and liked and subbed.
also is that a 12 tone shirt? Love it!
Yes! He's a friend of mine :)
cool i watch that too
@@donaldcarothers832 I watch 12tone VERY often!!!!
Loved the video but the T-Shirt drew me down here...
12 tone’s channel is super cool I immediately noticed the shirt how neat I haven’t checked out his merch yet but I love it. I’m a biochem student and I love to nerd out about music theory and play bass as a hobby. I always think those two hobbies as very distinct but doing both of them keeps me sane and curious and I couldn’t imagine my life without the arts and science. I wish I knew the story behind his doodles I don’t know why he draws them that way. Does anyone else know?
I read a paper years ago that documented an electrostatic force field. It was inadvertently created by the manufacturing of thin plastic film. The field was generated by the static charge created by the continuous transport of the thin film across a gap between the machines. Workers reported that a bird flying though the gap bounced off an invisible barrier. When studied it was found the effect depended on very narrow set of atmospheric conditions. I wish I could find the paper but it's been over 10 years since I read it.
Your attitude, moves and expression are fabulous. You could be a great teacher for anyone or with anything :P .
love for you and for the force field as Star Trek Discovery has shown :D .
Your perpetual enthusiasm is charming... and that accent just makes listening that much easier. You make head-hurting science fun.
Kiwi
It's funny how usually people rely on animated characters who are cuter than their real person counterpart... But with Up and Atom, it's just the opposite 😂 Good video, thanks for sharing!
I know right. She is so beautiful
🤮
but electromagnetic force field already exists. the earth has one. it deflects the majority of sun's radiation.
Magnetic fields require too much power, and modern weapons are electrically neutral
Magnetosphere?
Discoloured Buttflaps It exists, but not the same type of force field as those of science fiction.
As described, it doesn't work as a planar structure
We need to deflect solid objects. She said something about the military using it.(pretty sure the military would not need to deflect uv rays anytime soon.
That was very interesting to watch.
If I were to guess, among all the impossible things we can see in sci fi, force field doesn't strikes me as the most difficult to make.
So, I would say they will probably be a thing in a distant future (or something similar would probably be).
There's quiet a few things that I can't buy as being possible (at least within the realm of what we have and know in this world), like a human being going through solid materials or teleportation but Force field doesn't seem too bad.
Great work Jade! Really like the idea and well written. :)
Love this channel. May the force be with you :)
which one? :O
That is a question for George Lucas :)
Interesting! How about interference of electromagnetic waves? Or gravimetric waves, if that is possible. We can now use acoustic wave interference to lift small objects and stuff. This could be the basis of a tractor/repulsor type beam in my imagination. Which might lead to shaped forcefields?? It just seems a shame if we couldn´t do it. Excellent video, by the way!
Good breakdown on this subject. Thank you.
This is honestly one of the most well-communicated videos on this topic. :)
There is no need to construct a forcefield against laser beams.
Just polish your spaceship to a mirror smooth reflecting finish and you're set.
Love this channel and the host and the animations. Thanks very much!
An old article I read talked about it, a tape factory (accidentally)invented an electrostatic forcefield.
Shooting off high amounts of static force as the rollers moved, pushing things away from them.
So... Yes, I believe forcefields can and have existed.
Yep I read that same story. It was in I think North or South Carolina at a Scotch tape factory. Morning moisture in the air also had something to do with it as well as X-Rays being emitted at the point where the raw tape material was being pulled off the roll headed to the cutters.
In the words of Howard Stark _"I am limited by the technology of my time"_
I want anti-gravity first. Back to the Future II promised me anti-gravity cars and they are nearly 4 years late.
ITS YOUR KIDS MARTY. SOMETHING'S GOTTA BE DONE ABOUT YOUR KIDS
*IT'S (not possessive)
EVERYONE, ITS STRICKLAND! RUN!
It aint hard to make magnetic roads that repel magnets in cars. just pop on some engine and you are good to go
Also why didn't Marty just go "thanks for the advice, doc, when I have my kids I'll remember to raise them better". Why did they have to go to the future?
Back to the future 2 is just a movie and not a prediction of the future, just a guess as to what could happen. people have made hover device but is much larger than hover board used in movie.
David Weber's Honorverse uses gravity as a shield, sort of. They actually create intense artificial planes of gravity for propulsion of any space-going vessel above the size of a jumbo jet. These fields are so intense that they warp light going through it and tear matter apart. Much weaker fields are used as "sidewalls" to do similar things to photons and gamma rays being used in an offensive manner. They require ridiculously efficient fusion plants to create and the series largely takes place roughly 2000 years ahead of our time, so I don't see us doing that any time soon.
What about the greatest force of all?
love
Cringe.
Oh nooo! So many have been burnt that way. You could say you'd need a force field against love.
Can it stop a time fused nuke?
@@colonelstriker2519 it can stop someone from launching one.
That’s not a force. That’s just lust in disguise. More of a diluted emotion than a force.
You remind me of my science teacher from hs. I loved her personality, it made science interesting some how. Keep up the good work!!
I’m reminded that some of the first tries at AI made scholars realize they didn’t know quite what intelligence was. When someone achieves a force field, they might find it functionally equivalent to a windowpane.
Indeed, I gather a windowpane is quite literally a force field. The bits of mass it is built around are a tiny fraction of its volume, and it can be made both transparent and practically impenetrable.
It seems to me the true goal is to conjure windowpanes from nothing and dismiss them at will. Maybe that outlook will spark an idea.
I mean, plasma windows are basically the kind of shielding you see in a lot of Sci-fi, separating a hangar bay from the vacuum of space.
I saw Violet
Yea right
You may have seen violet, by my cow mooed indigo.
Scientists and highly technical folks will tell you this is not possible until one fine day it arrives with a bang like the iPhone
Also turning on the image of the Enterprise-D (from Star Trek). They had a technology called a holodeck. Which was described as an advanced use of forcefield technology. Computers able to create simulations that people can actually walk into and interact with (no glasses needed).
You are the greatest!!! Able to devulge and explain the most abstruse of physics to us poor mortals. I love it!!
create a magnetic field on the outside of the ship and fill it with
1 Eletrostialy charged Sand, dust
2 Cold plasma
this provide the effect of a classic force field and would work at stopping lasers and particle beams possibly even missiles and railgun rounds maybe.
Could we manipulate the higs field making what ever enters will just pass through you?
When you can comprehend why an electron does not just fall into the nucleus, then you can possibly construct a force field. But you have to start at the foundation of the Universe to figure this out.
Here I suggest a theoretical possibility of a force field.
A very dense accumulation of negative mass could probably act as a force field, I guess.
It will be able to repel normal bodies, charged or neutral, as long as they have some mass.
As for repelling photons, if the negative mass is modelled as a sphere such that it's radius is lesser than the critical radius of the system=2GM/c^2, where G and c have their usual meanings and M is the magnitude of negative mass of the system, the system could in fact repel photons, and therefore light(it would practically be the exact opposite of a black hole).
Great video, as you started i tought about plasma being a candidat as i remambered the different tokomak fusion reactors. They alredy work in a similar way.
Nearest thing to a sci-fi force field I've ever seen is when a Falcon 9 is using it's rocket engine to repulse the heat of re-entry.
Great animations! they are very effective. It is an interesting topic, I wonder what would happen if two force fields collided... I guess they would deflect, so maybe the force field itself is not about stopping objects but rather changing their direction? In that sense maybe gravity points away from the person or object could act as a force field? When I say gravity points I obviously talk from a SciFi point of view, not sure if they would be even possible. Great video, thanks
maybe it would be like in dragon ball z with the kamayamaya waves?
"But [the electromagnetic force] is completely useless against any insulating material, like rubber or plastic"
If that were true, rubber and plastic would fall right through your hand.
And not just through your hand, also through the floor. Any piece of rubber and plastic would be in an orbit around the earth's core, eternally falling straight through the earth and back up again, and down again, and up again, etc, without even any friction to slow it down.
I was about to post that. Without the electromagnetic force, matter would fall through itself.
David Swenson of 3M Corporation describes an anomaly where workers encountered a strange "invisible wall" in the area under a fast-moving sheet of electrically charged polypropelene film in a factory. This "invisible wall" was strong enough to prevent humans from passing through. A person near this "wall" was unable to turn, and so had to walk backwards to retreat from it.
This occurred in late summer in South Carolina, August 1980, in extremely high humidity. Polypropelene (PP) film on 50K ft. rolls 20ft wide was being slit and transferred to multiple smaller spools. The film was taken off the main roll at high speed, flowed upwards 20ft to overhead rollers, passed horizontally 20ft and then downwards to the slitting device, where it was spooled onto shorter rolls. The whole operation formed a cubical shaped tent, with two walls and a ceiling approximately 20ft square. The spools ran at 1000ft/min, or about 10MPH. The PP film had been manufactured with dissimilar surface structure on opposing faces. Contact electrification can occur even in similar materials if the surface textures or micro-structures are significantly different. The generation of a large imbalance of electrical surface-charge during unspooling was therefore not unexpected, and is a common problem in this industry. "Static cling" in the megavolt range!
On entering the factory floor and far from the equipment, Mr. Swenson's 200KV/ft handheld electrometer was found to slam to full scale. When he attempted to walk through the corridor formed by the moving film, he was stopped about half way through by an "invisible wall." He could lean all his weight forward but was unable to pass. He observed a fly get pulled into the charged, moving plastic, and speculates that the e-fields might have been strong enough to suck in birds!
The production manager did not believe Mr. Swenson's report of the strange phenomena. When they both returned to the factory floor, they found that the "wall" was no longer there. But the production workers had noticed the effect as occurring early in the morning when humidity was lower, so they agreed to try again another day. The second attempt was successful, and early in the morning the field underneath the "tent" was strong enough to raise even the short, curly hair of the production manager. The "invisible wall" effect had returned. He commented that he "didn't know whether to fix it or sell tickets."
I like to believe that the electrons that race around the nucleus of my atoms act as a kind of "force field" that repels other electrons in other atoms allowing me to stand on the surface of the earth and interact with things. Is the outer shell of an atom a "thin sheet"? Pretty darn thin I would say. Seems like a natural force field already exists.
totally subbing
thank you and welcome!
This would be a critical technology for space exploration beyond our solar system. One could easily see this plasma window tech being used as a sort of "navigational deflector" that shunts away small stray particles and dust that. It may not stop weapons, but we still have old-fashioned armor and we can polish some mirrors to deal with the lasers.
She's explaining the extract on shields fields of the book Physics of the Impossible by Michio Kaku, I recomend this book, it is so interesting !
I don't know why - but I really loved that short Dune clip...
We already do it. Using mostly the electromagnetic and strong nuclear strong forces, we make a "relatively" thin force field. We wrap tanks in it and call it armored plating. :)
Jade is an example of someone who probably could have also been a successful actor, but instead went into science. That's a pretty rare combination.
Idea: really sense shell of negative matter. It repels everything with positive mass, which is everything except the shield itself. The main problem is that it is ludicrously expensive and not exactly transparent.
It's amazing but electromagnetic fields would also be a huge weakness to the field. It would be insane to blow up a ship through its defensive systems with just the right electromagnetic field
That's why I like how in star trek the forcefields are useless if the enemy has some number. You can imagine they have a technology that almost encrypts the magnetic field so that you can't just disrupt the contained energy with your own field? And yet in sciFi they don't have to explain all that detail to us, just take artistic license and all...
E-M force-fields could possibly be made using resonances, where the energy is tuned so that there are nulls and very-high-strength planes, which already happens to radio and radar transmissions at various angles, depending on the antenna shape. By using arrays of many tiny transmitters going off in computer-controlled rapid patterns., you could adjust the nulls (low-spots) and high-power points to any shape you want almost instantly by proper array design and enough raw power output. Since you may also be able to tune the frequency and phase of the signal, this could, with enough energy, computer power and speed, and some fast-replaceable material easily turned into a plasma (a spray cloud around the thing to be protected, in effect), the super-hot spots could be adjusted to be directly in front of any attacking thing, both physical (bullets) or energy (laser) and, if hot enough at those spots (in layered resonances one after the other in the way of the attacker would be best), the plasma could be made opaque against any frequency of laser (tuned to exactly negate it like those sound-killing headphones) or literal;ly vaporize a physical object. You would need A LOT OF POWER, of course.
I wish force field tech could actually work, and on a personal level-- because that's one of the few things that might really change the gun equation.
A. E. van Vogt's books "the Weapon shops of Ishtar" talk about this subject. He wrote it back in 1951.
I like how you explain how and why it does or doesn’t work and why. I always like to know how things work and why. It helps me trust the effectiveness of a strategy or way of doing things working because I don’t just say oh it works but I really understand how and why they work. Thanks for making this video!!
I think it’s possible what if you get Soliders to lie on paper trace around their body, make lightweight bulletproof metal sheild that goes your body, repeals light, lasers, bullets and keeps you Cool inside, by pressing a button you turn on a magnetic force field, the magnet pushes all magnets/metals away, meaning when bullets come at you, bullets will push away/bounce off you, I think this would be a good idea to try bringing to reality, don’t same magnet forces repelled/push apart, meaning if they find out how to make a bullet levitate they’ll understand how to make bullets bounce off n off not if they use the same armour as bulletproof vest outside your lightweight metal body suit it means you can walk through bullets in your immortality body suit bullet/fire proof, when u walk through fire you a cooling gel pad on the inside keeping the metal from getting to hot, as for lasers if you have the outside like a mirror won’t lasers just bounce back n burn the person firing the laser, the back comes off so you can step inside the suit, what u latch the back back on it over laps the edges/cut to haul the back off.as u step inside before putting your arms through the sleeves you turn on the magnetic force pushing all magnets away so on the negative side meaning you’re on the positive side being the inner side, things can levitate off you, when someone shoots u can just push the bullets down
We have force fields everywhere.
A shield or armor is a force field, it uses the electrostatic force field
Electromagnetic force can be made into a thin field. The strength (density and size) of an electromagnetic field can be manipulated by changing the strength of electricity or magnets. Also you can form almost any shape of field so long as you have the correct structure of magnets and copper wire. Energy consumption is the main issue other than not working on insulators.
In the original Star Trek they always talked about deflectors and a deflector dish. The idea being that the dish would generate an electro magnetic field around the ship to deflect matter while traveling at high speed. The deflectors had the added benefit of being able to deflect or absorb beams from particle weapons. In other Star Trek series they talk about "polarizing the ship's hull" as the means to deflect interstellar dust and particles, and again having the added benefit of deflecting some energy weapons.
A couple of thoughts....
The strong and weak nuclear forces are carried by particles with mass which limits the distance at which they can have any effect, with the distance determined by the uncertainty principle.
So I see two ways to turn these forces into force fields.
The first is to manipulate local spacetime or accelerate the force carrying particles to relativistic speeds allowing them to carry the force over larger distances.
The second is much more speculative. If force carrying particles somehow had a variable mass, either by having sister particles of varying masses or by some future technology which allows the manipulation of mass somehow, then the forces could act over larger and possibly arbitrary and dialable distances.
I wish you were my teacher 😥
I see another issue with the layer approach in addition to not being able to make those things yet at the scales needed. To get layers you'll need pass the outer layer, in this example, plasma, though the laser and carbon nanotubes without disrupting or destroying them... I suspect the answer, if even possible, will be enormous amounts of energy. What we really need to find are Dilithium Crystals :)
0:58 Gravity can't make force fields? (**Screams in defender titan**)
Well isn't plasma part of the electromagnetic force?
I thought so
I remember seeing a TV video showing testing of a prototype.
Never heard about it again
to cute to pay attention lol
If you want something like it 1m abrams with explosive reactive armor with active protection system trofy trophy your close to that but if you add support that protect from jets and missile then you have something like a forcefield
Jade, you're adorable, I want to give you a hug😊
The energy to create one, would be unbelievable…
Wow in your Thumbnail u look ravishing😍😃
Hmm,we bend light and electron beams using em fields. Hell last I checked we could melt stuff including insulators with em fields. In fact em fields can be so strong they can rip objects apart right down to the atomic level. Which is one of the ways we create plasma.
I don't need to heat the entire surface. Just where it needs to protect. Which, if it is opaque, would match what we normally see in films. I imagine the magnetic field being used to capture the plasma could be manipulated to increase both heat and density of the plasma at a specific location, for only a brief moment.
Thanks for the mnemonic to remember that plasma is positive, because all its children have left home!
And I also like Kakus system of Grades of Impossibility.
It really helps humans to accomplish stuff when we can phrase it as a grand challenge, with like Life-Extension being Level 1, Levitation/antigrav being a Level 2 Impossibility and non-reletivistic FTL travel being Level 3 etc.
I just discovered this channel and I'm binge watching every video. You're amazing. ❤️
Gr8 topic...simply explained..superb video effects... And an awesome tshirt ...
U earned another subscriber now!! Gr8 going :)
This is the first video of yours that I understood.. lol.. you are such a beauty with brains... great work
I bet that we will find ways to build force fields out of electromagnetism. I.e. to shape magnetic fields and electric currents into fancy and fast-changeable geometries that hang in the air and can exert useful force on objects. The layer doesn't at all need to be super impermeable to be practical. From defence standpoint, it's enough already if it can cheaply be deployed and at least zap intruders hard (the conductive kind). Also merely creating "forcebeams" would open up fantastic possibilities... Not just lightsabers, but maybe even portable quickly deployable bridges, or guideway systems in the air for flying cars, and many more useful forms of everyday telekinesis.
Think how even the plasma window idea largely depends on novel ways to manipulate the electromagnetic field at a distance. Can't have all the structure backed by a bulky layer of magnets and call it a "plasma forcefield". It would for the most part be a metal wall then...
I was talking to a guy today that works with lasers to tractor clouds containing hundreds of thousands of atoms. He mentioned how every atom has an electric moment and using the correct wavelength can excite that electric moment of pretty much any material and be used to confine it.
Large number quark spherical QCD nucleon , ie a shield, you can spead a large number of quarks apart in a spherical form like inflating a balloon
minupulating molecules in the air to a force field is impossible and if possible it will use so much energy but if u implement such technologies on solid objects like amour it is easier to manipulate the molecule to harden and will use less energy.
Just a detail, the electromagnetic force can deflect any normal material, not only what we normally call "magnetic materials". Basically neutrons too have a magnetic "field" , the "neutron magnetic moment". One of the sources of the more powerful magnectic fields what we know of are Neutron Stars. That does not mean that we can turn it into any source of force field, but it's important to remember.
Little late to the party, but theoretically speaking, force fields using gravity and electromagnetism are possible:
Gravity is normally attractive, but a region of negative energy can produce antigravity, and therefore a 'bubble' of such negative energy could create what is essentially a force field (and possibly including effectively blocking lasers by redshifting them into a harmless form, although the same effect would also make it more difficult to see out from within the bubble... but on the other hand, it would also enhance any lasers, projectiles, or the like fired from within the bubble). Actually creating such a field with technology is easier said than done, but is required at some point in any solution to Einstein's equations that allow faster than light travel (particularly warp drives) so if a setting has FTL, antigravity shields might well have developed as a spinoff. They might even just simply be a different configuration of the warp field.
In the case of electromagnetism... it's electromagnetic fields that prevent solid objects from passing through one another in the first place. So, theoretically, all you'd need is to be able to form a configuration of electromagnetic fields that mimics the tight fields found within a solid object and you'd be good to go. Now, actually achieving that without actually having a solid object there is, again, easier said than done by technological means - plasma windows are probably the closest we've achieved, and in that case you've still got baryonic matter there to provide the actual barrier rather than it being purely generated by electromagnetic fields. Some science fiction, however, does explicitly call them 'plasma shields', so maybe this is exactly what they have in mind. In most science fiction shields aren't actually infallible, but instead something that either reduces the strength of hits or absorbs a certain amount before collapsing, so plasma windows not being a perfect defence doesn't disqualify them. It's also worth noting that in many space science fiction settings, weapons that look like, or even are called 'lasers' are actually some form of plasma bolt (Star Wars - the plasma is excited using a laser, hence why they're called "laser cannons", but they're actually plasma bolts) or particle beam (example: Star Trek phasers), so not blocking lasers might not be a major issue.
In the case of Violetta from the Incredibles... superhero abilities of that nature are essentially magic. Perhaps her force fields are one of the above because magic - she doesn't need to have a technological solution, she just gestures and wills the forcefield into existance and the right configuration of electromagnetic fields just happens. And if it's magic, it could magically adjust to incoming light at harmful intensities (ie, laser weapons) by assuming a configuration that blocks that frequency.
One other possibility that could apply in space combat is to use a magnetic field to hinder attacks with plasma and charged particle beams, similar to how the Earth's own magnetic field helps protect life (and the atmosphere) from radiation, the solar wind, and so on. Such an approach, however, would probably make the ship an easier target for magnetically accelerated ferrous projectiles such as from railguns.
I like sci-fi force-fields, but I also know how most of them are portrayed would be impossible to duplicate. Having a single, paper-thin layer would be impossible, and I think it was unfair of this video to use just that one example, as sci-fi has been known to deploy force fields in multiple layers and thicknesses.
Being the not-physicist that I am, I think that if you wanted to protect a ship in space (um, this would not work under gravity and/or within an atmosphere), you would have several layers of alternating-frequency electromagnetic fields around the ship, and then just before an engagement a cloud of reflective material is puffed or sprayed out within these EM fields. That way the EM field repulses metallic objects such as bullets and missiles, and the chaff of reflective solid particles can _reduce_ the effectiveness of lasers, masers and plasma balls/bolts.
The problem is, for this to work multiple rounds of this stored reflective debris field would be needed to maintain constant protection, and if the ship moved the EM field might not be strong enough to keep them moving in the same direction as the ship. Your own ship would have to be protected from the high levels of EM to ensure your own hull and electronics don't become a victim of your own defense! Also, having an intentional debris field around your ship might both interfere with sensors, and/or be as much a hazard to your hull and windows (aka buckshot from a shotgun) as it is to incoming fire! Additionally, once combat operations have ceased, and the EM field is removed, getting clear of your own debris field would be hazardous and difficult at any speed.
The science-fiction novel _The Forever War_ (1974) pictured human space warships that used a Bussard ram-scoop to pickup interstellar gasses as the ship traveled at relativistic speeds and redirect that to power kilometer-thick EM fields in front of the ship. The EM fields would reflect- or rather use multiple fields to artificially polarize- small random dust particles (which then bounce off of inner layers of reverse-polarized fields) but not larger objects like meteors, and so the ship would still have to steer around those to prevent near-light-speed impacts.
Another possibility would be the [fan dubbed] 'fairy dust' approach seen in the 2007 _anime_ series, _Mobile Suit Gundam 00._ The protagonist paramilitary organization Celestial Being has a perpetual-energy machine called a GN Drive that produces naturally-occurring GN Particles. They protect their mobile suits (humanoid robots) and space vehicles from attack and physical damage by having microscopic holes in their hulls distribute GN Particles through a network of tubules with their inner structures directly from the GN Drive. The bulky mobile suit Gundam Virtue and mothership _Ptolemaios_ takes this to another level by having dedicated GN Field emitters built into their hulls that directly store and emit concentrated GN Particles _en mass._
The various Beam Sabers and Beam [guns] used by Celestial Being are just magnetic bottles of GN Particles that are both concentrated and released in controlled bursts.
Aside from the name of this technology and how it generates energy in the _anime,_ an alternate realistic force field might be to release a cloud of energetic particles (such as, yes, plasma) around your ship, and then contain it within a magnetic field. The concentration would have to be significantly dense enough that you might actually see the cloud around the ship!
The downside is that this bottle of particles is just as likely to eat away at the hull of your own ship!
Anything’s possible. Also that Michio book is awesome!
Do force fields block the negative effect of the positron storm? It's good to have a way to defend hospitals with newborns that can't be fluoridated. If we had fluorescent lights that were on the rooves of houses that lit when there's a CME would it also generate electricity for the house? Also, would a force field not bound by gravity form a sphere as a natural state? Like in microgravity how water is a sphere.
I think the first step in answering this question is acknowledging that "force field" is a misnomer for simply "transparent shields". This would save a lot of time. But science fiction often puts another more stringent requirement on force fields: they should be selectively permeable (like a cell membrane). This could be as simple as opening a temporary gap that would allow your shots to go through, though writers' plot devices hide the weakness in this approach.
Actually gravity would be a great force field. If we find and can manipulate gravitons to create negative gravity or even ultra-dense fields they would easily be able to block any object because in essence gravity warps space and if you warped it so extremely (like into a thin black hole type density shield) you could prevent anything from traversing that warped space.
Just use a garbage can lid. Makes a nice shield.
Tesla had supposedly invented a force-field near the end of his life, but it was theoretical since he didn't have the funding to test it. It consisted of multiple towers that you would set up along the borders of your country spaced 1 mile apart (I can't remember the exact distance). Then when you turned them on each tower would synchronize with the two nearest towers, this produced a barrier-field that would repel invaders both on land and in the air. The idea being that this would prevent future wars.
"Magnetic fields can't really be turned into thin planes"
No, but you don't need to. Instead, you just harden the other equipment in the area against EM radiation, and blast away. A human body can take quite a lot of a gaussing, and it has the added benefit of disarming most foes, as a magnetic field strong enough to stop physical motion through it will also make an MRI look like a fridge magnet.
Right. It's important in nuclear fusion.
There are force fields, which in free space is the photon about the light ray tensor, in John Dalton's atom shell is the tron cone duet portal, and in the nucleus is the column of Tron related to neutrinos. Resonant frequency applied to the electron will pass more freely to the neutron and reduce energy requirements for fusion.
Took me three seconds on Google to find this: The Shark Shield works by emitting low-frequency electrical fields from either an ankle bracelet, leg strap for scuba divers...
Gravity can easily be used to make a force field, and has been used for just that in the physics-based sandbox game 'Space Engineers'. In the game, one of the science fictional devices you can use in your building is a gravity generator - it is there so you can give a starship a localized 'down', just as we see on countless science fiction shows, like 'Star Trek'.
Clever builders have set up ships that have gravity generators with defined fields. One field pulls toward the ship - making a localized 'down' in that direction, while the other field pulls away from the ship - a 'down' away from the ship. By cleverly placing the two directional localized gravity fields, the builders create a space where objects - little rocks, bits of metal - are pulled toward the ship, and just as quickly pulled away. The bits of trash become trapped between two opposing 'downs' that effectively keep the particles within a plane.
That plane of bits and bobs becomes a barrier which is deadly to matter. It is a wall of debris that acts like a blender and a surface which blocks and ravages anything it comes into contact with.
If it were ever possible to generate gravity - or attractive fields of any type - and then apply this trick, the result would be a plane where matter could be suspended and trapped by forces which render it like a dangerous wall. A force field.
plasma is just extra electrons. Lots of people play with plasma. Fire is plasma. some plasmas are more reactive then others depending on its electron mass making potentcial im thinking.