Amazing Physics Toys/Gadgets 1
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- Опубликовано: 25 фев 2022
- Hi Everyone :)
Welcome back!
I get asked often: "Where did you get all this stuff?" My goal is to share the real magic of science and physics- and to this end I will update here (and in my store) suggestions on where to get some of these toys, kinetic art pieces, and scientific curiosities for yourself.
Purchasing items from the links on these pages will help support my IG page of science and wonder.
Buy physicsfun toys on : bit.ly/2MOjFET (Official websit 🇺🇸)
physicsfun toys on amazon :
amzn.to/36RRxt0
Follow on Instagram :
@physicsfun
This video contains :
👉🏻 Ambiguous Object Illusion: repost of this incredible design by Kokichi Sugihara of Meiji University in Japan, the inventor of this illusion and art form.
👉🏻 Perpetual Motion Simulator: this marble machine device does not break any laws of thermodynamics- but it sure looks like it! When I first saw videos of this piece of kinetic art I thought the effect was due to video editing, but in fact the base contains a power source and very clever mechanism (I used compass for clue/partial reveal). An amazing piece of art by William Le crafted from stainless steel wire, doussie hardwood, and undisclosed internal components. A remarkable addition to my collection!
👉🏻 Monochromatic Room @exploratorium: a photo of colorful San Francisco is illuminated by a very narrow frequency band of light, with a wavelength of 589nm- the characteristic spectrum of sodium vapor lamps at low pressure.
👉🏻 Copycoder: clever use of an array of cylindrical lenses to scramble and unscramble large font messages- a modern "secret code" toy.
👉🏻 Vortex Marble: glass art intersects with the physics of optics in this lampwork art form invented by Kevin O’Grady circa 1994- and this marble bears his signature mark on the back.
👉🏻 Scale Solar System
👉🏻 Scale Solar System Sticker Set: one of the most amazing facts about the planets in our solar system is their relative sizes. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and dwarf planet Pluto included for comparison- all in their current order (sometimes Pluto is closer than Neptune), and mounted here on a sheet of polycarbonate. On this scale, Neptune would be about 5 kilometers away from Mercury!
👉🏻 Moondrop: using magnets and Lenz's Law to imitate free fall times on the Moon and Mars.
👉🏻 Plasma Arc Lighter Physics: dual arcs of plasma exceed 1100 C (2000 F) on this flameless lighter.
👉🏻 Halloween Neon Glow Bulb: the pumpkins, with a high voltage between them, glow orange with light from the emission spectrum of the excited neon atoms of the low pressure gas within the bulb.
👉🏻 Uranium Metal: at Z=92 protons, uranium is the largest naturally occurring atom one can extract from the Earth.
👉🏻 Oil Drop Timer: immiscible liquids (colored oil in kerosine) in two connected containers. The oil in each container falls through a small drop forming hole in between clear walls of acrylic.
Background music by : RUclips Audio Library
1) Forever - Anno Domini Beats
2) Cosmic Drift - DivKid
3) Lulu - Underbelly
4) Book The Rental Wit It - rage
5) Vital Whales - Unicorn Heads 
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What’s one new thing you’re learning this month?
Any school and college students here? Where are you from 🌍?
0:30 can any one explain me how does it working ? please
I am an Engineer from Argentina.
Perpetual Motion Simulator: this marble machine device does not break any laws of thermodynamics- but it sure looks like it! When I first saw videos of this piece of kinetic art I thought the effect was due to video editing, but in fact the base contains a power source and very clever mechanism (I used compass for clue/partial reveal). An amazing piece of art by William Le crafted from stainless steel wire, doussie hardwood, and undisclosed internal components. A remarkable addition to my collection!
From INDIA
@@wasifanweruddin me too
Very cool. My grandfather, who died at 95 right before the pandemic, used to collect physics toys and loved to demonstrate and explain how they work. Because of him I have a good understanding of buoyancy, surface tension, states of matter, electrical conductance, and many other concepts. We need people like you to teach this stuff to the next generation. Keep up the good work.
@@wakeup6060 Its so funny to read flat earthers, its so stupid
@@wakeup6060 ayo shut up, the earth isn't flat omfg,
Rip🙏🙏
I think you grandfather was some awesome guy
@@wakeup6060 you should definitely reply to @Faith Morgan and their reply. I wanna see how you debate with them.
Solution for the puzzle: spin the tube while keeping it horizontal, the water will get pushed to the sides, causing the air to be displaced and go to the center
As is the solution for most tricky puzzles, either spin it or hit it.
@@gabrieltull3585 especially relationships
I made a similar puzzle out of wood a while ago I'm pretty sure that is correct.
Came here to give you a like because I knew it was the answer. Just didn’t want to cloud up the comments with additional comments.
Since I have a spirit-level whose bubble sometimes fragments, I've learned to tap the level in the vertical position so that the bubble(s) collect as one unit. Then returning the spirit-level to the horizontal plane, one bubble returns to centre.
Those vortex marbles are pieces of art! 😍
Glad you liked it
And I now need an eye doctor
Piece of art while the batteries last.😂
@@alex-E7WHU Does the marble requires battery???
@@HRavenfolks I saw a video on here that shows a battery compartment in the base.
I had multiple "oil drop timers" as a kid, love those things
solution to the puzzle: spin the tube. Centrifuge will move the water to the sides and the bubble will be held in the center.
Came here to post that. Glad I looked. Good on ye.
Me also lol
Yep ! Bien vu ! 🧐😄👍
I was going to say shake it, flip it, then try spinning it. Gg
Yep, had bb puzzle that used the same principle. Edit to change "principal" to "principle".
I've watched quite a few "physics toys" videos and this one, by far, has showcased some of the coolest ones.
Glad you enjoyed!
Physics describes the real magic of the universe.
@Science Revolution If I had the time and thought you would listen, I would explain all the ways in which you have misunderstood and misrepresented the scientific pursuits of multiple centuries. But I fear it would take the better part of a lifetime to change your mind, so instead just enjoy the time you have on this Earth.
Clickbait thumbnails be like:
I had several oil drop timer as a kid and I didn't remember for 25 years until this video, very cool :) They were so fascinating, and I could watch them for hours.
Glad you enjoyed it!
The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.
The perpetual motion simulator is really something I could watch ALL day.
Contains a "👉 power source"
Perpetual Motion Simulator: this marble machine device does not break any laws of thermodynamics- but it sure looks like it! When I first saw videos of this piece of kinetic art I thought the effect was due to video editing, but in fact the base contains a "👉 power source" and very clever mechanism (I used compass for clue/partial reveal). An amazing piece of art by William Le crafted from stainless steel wire, doussie hardwood, and undisclosed internal components. A remarkable addition to my collection!
@@physicsfun Is it one of a kind or can one be bought?
@@physicsfun как он называется? я хочу узнать о нем больше
Correction: it's something you could watch PERPETUALLY.
@@hagdore technically, you could watch till the battery is flat.
These gadgets are a must for anyone that loves physics!
I can't afford that 😓
I hate physics just walk on walls bruh
@AS ABOVE SO BELOW That link doesn't support your statement at all. The video only further explains the physics behind the seeming perpetual motion that's supposed to be impossible. The bob is a ferrite magnet ball and thats an electric coil. Even in this video it stated that the system "didn't break any law of thermodynamics" and I thought the magnetic compass made everything clear. But I guess there exist people like you.
Did you think you made a big discovery with that linke you posted? Bet you're american 😂
Great point :D
Actually for folks that like video editing.
For the Moon Drop gadget I'm amazed they managed to perfectly emulate the speed something would fall on Earth...
It is a neat demonstration. Acceleration difference due to gravity between the Earth 9.8 m/s^2, Mars 3.7 m/s^2, and the Moon at 1.6 m/s^2 is pretty different. Wouldn't it be another interesting demonstration to have the same kind of set up where there the Moon has the longest shaft followed by Mars, and then Earth where dropping from the highest firs the triggers the drop of the next at the right height so they all land at the bottom at the same time?
Woahhh!!! Thought I was going crazy when I saw one of my vortex hand pendants! Great videos!
This perpetual motion simulator looks quite cool. I also remember having one of these Oil drop timers many many years ago.
@@octavebelow6480 Not fake, there's a battery and electromagnet in the top part (you can see how the ball accelerates backward). There's a "perpetually spinning top" toy that operates a similar way, spinning on the top of the electromagnet at least until the battery gets drained.
@@octavebelow6480 Your first comment was rather deceiving then, just like most perpetual motion machines
@@kewkabe at first, I was hoping for the ball to fall right through the hole and then jump back up again. I thought the ramp has the perfect length and was perfectly angled.
@@bobveinne2439 oh sorry
@@octavebelow6480 I see no reason why it would have to be faked since it's labeled a perpetual motion *simulator* as in it's simply has the appearance of being a perpetual motion machine but because perpetual motion machines could not exist within the laws of the universe as far as we know it the reason why this doesn't classify as a perpetual motion machine in anyway is that gravity pulls the ball down and the angle of the ramp makes the ball fall down the hole and the ramp itself is set up in such a way that it can with the force of gravity throw the ball back up in the top portion. Just like those Bird desk toys but continuously ' sip water'
When I was a kid in the 60s/70s there was an old toy store in town that had been around for about 75 years or so. They had the coolest stuff, lots of science/physics toys on display, they obviously loved the educational toys and promoted them to parents. You could look around for hours in there, just rows of new and and what many would call out of date toys. Was also the last place around here to get the old Aurora slot car track and parts since most places switched to the Tyco sets. Just a fun and educational place to visit, the owner even though elderly remained a kid at heart and loved to show you around. Natually the big chain stores did them in like most family owned stores.
I was looking at your Amazon store and had flashbacks to that toy store and my youth instantly. I may have to pick up a few things there, love physics gadgets to this day lol
Thanks for sharing
Science is the process that takes us from confusion to understanding in a manner that's precise, predictive and reliable - a transformation, for those lucky enough to experience it, that is empowering and emotional..
I've seen toy stores come and go and I'm only 17, times are different
2:52 It would take 318 Earths to equal the mass of Jupiter (and 1321 Earths to equal its volume.)
Another knowledge to shared thanks a lot 😉
For the tube with bubbles - to get the bubbles in the center portion of the tube, spin the whole with the center section in the middle (or approximately) as the spin axis. The fluid's greater mass and density will result in it being pushed outwards due to centrifugal (sorry) force. The gas being of lower density will "float" towards the center.
I loved how you said sorry considering it a pseudo 😆
He said he would respond to every answer. It's been a month. I'm very disappointed.
I was going to comment the same thing👍🏼
Nice
I’m a PhD in physics, and you took the words right out of my mouth. Nicely done.
1:22 that's how WB made their old intro
Awwww you included PLUTO! **feels**
Plasma Arc Lighter ... dude that Looks Sick!! 🔥🔥
The ball in the PMS is clearly higher and faster at its apogee than when it falls down the hole. It therefore has gained energy (potential & kinetic) on its travels, most likely from an electromagnet in the base powered by a battery accessed from the side not shown in the video.
Clearly not real. Perpetual motion is a fallacy.
@@1PITIFULDUDE did you not read the comment? The elevtromagnet adds energy to the system, so it's not perpetual motion
Dude legit put a compass on the machine to show there was a magnet. Yikes man. A little Critical thinking goes a long way
Perpetual Motion Simulator: this marble machine device does not break any laws of thermodynamics- but it sure looks like it! When I first saw videos of this piece of kinetic art I thought the effect was due to video editing, but in fact the base contains a power source and very clever mechanism (swipe twice for clue/partial reveal). An amazing piece of art by William Le crafted from stainless steel wire, doussie hardwood, and undisclosed internal components. A remarkable addition to my collection!
I think the rails are electrified, and what you're seeing is a super low-powered rail gun. The compass moves because the marble has an electromagnetic field moving through it.
I love how all the toys have scientific explanations
Thanks for showing your love.
Finally something good to see on RUclips.
Glad to hear that
The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.
I swear some of these I would constantly be watching entertained...
Glad you enjoyed!
Oh wow, I was almost ready to dismiss this as click bait (after a quick frame by frame I discovered it wasn't cut). But then I saw the monochromatic room in the exploratorium and that brought back some great memories. Flew over to see S&M2 and the exploratorium is absolutely amazing. Long story short, sodium vapour lamps shifted my perception of my own perception. It was absolutely a light bulb moment (pun intended). My hat is off, I love the science and entertainment mix, keep it up.
It made that illusion for the first one by 3D but putting curves in the middle of it
I just needed to hear it
I love those oil drop timers but the ones I've always had have never really seemed to work 100%
They were more meant to be visual fidget spinner like desk toys, not actual timers(at least not with any implied accuracy).
Also, if you had these in the 90s as a kid, you're not a millennial. For those of us who arent boomers and refuse to be called millennials. ;)
0:37 This can't actually happen naturally because the ball is shot higher than it starts out. You can see when the ball gets close to the edge where the guides are that it jumps. There's a magnet positioned where it can propel the ball forcefully down the ramp.
Yes! Perpetual Motion Simulator: this marble machine device does not break any laws of thermodynamics- but it sure looks like it! When I first saw videos of this piece of kinetic art I thought the effect was due to video editing, but in fact the base contains a "👉 power source" and very clever mechanism (I used compass for clue/partial reveal). An amazing piece of art by William Le crafted from stainless steel wire, doussie hardwood, and undisclosed internal components. A remarkable addition to my collection!
@@physicsfun copied from the description
True lol
@@physicsfun can you buy it somewhere?
as soon as I saw the compass I understood what was going on. I love watching that.
Wow, they're so cool! I appreciate your efforts, as i can see them on your video's description. Keep it up!
Glad you like them!
❤️❤️
7:16 middle bottle seems a workshop
7:55 Spin the contraption like a top and centrifugal force will move the heavier water to the outer bulbs displacing the lighter air into the center bulb.
I agree, this was my solution also.
Google is great, eh?
7:35
The water bends the light, A good example of this is a pencil in a bath, if you stick the pencil in the water it will seem to “Snap in half” in a clean cut, this is a result of the water bending physic (if there is a formula I do not understand it).
Filling my house with these to scare people into thinking it’s magic. Sticking that perpetual motion thing on a tensegrity table
It's amazing how much you can learn watching informative videos by passionate people. I'm able to "play" on my phone, and it feels like time well spent.
Oh man that oil timer with the magenta and cyan drops in separate containers was THE thing I was all about as a kid, I just loved to see the pretty colors fall down even if I didn't know what was going on. It was fun to watch then and it still is now
When I was a little schoolboy in MD, I recall my teacher showing us a v. simple thing where two thin coinsized squares of aluminum would rotate in one direction, suspended on a horizontal wire - from photons from the sun. One side silver colored, ...the other side black. I'm now a solar engineer.
Thanks for sharing
Bro this stuff is crazy my favorite one is the marble one
2:26
I never get tired of physics toys. Bought myself a Fibonacci clock some years back.
Man, I'm a big sucker for these kinds of optical illusion/physics toys. Some of these I'm asking for Christmas.
Btw 5 for the background music.
5:02 bro that lighter but it’s more like a taser that probably is a electricity and differently made but I already got burn from it on my hand by someone who wanted to do a test on me but luckily it didn’t put a permanent scar and heals 1 week completely or maybe more depends how big it is
The first one with the steel ball was cool, In Indianapolis in the 70's in the Detroit Diesel museum they had a display with ball bearings doing something like this I was amazed,Someone told me they did it with magnets ,But i thought because they were so perfectly machined. Amazing stuff here.
It looked like magnets, it bumped against the front lip every time weird
@@robinwestrick2270 yeah, very fast. Its likely something that pulls it down the hole once it starts to descend to give it a persistent speed.
He does mention its powered in the description.
Electro magnet. It’s a gimmick
Gimmick or not, it's a great curio.
@Michael Dean you can see a similar 'disconnect' on the top railing so I doubt that would be the reason I have seen other pictures of the same device and there is no such thing so it could just be lighting.
I have seen people explain this sort of device with a hall effect sensor or a metal detector which activate the electro magnet that pushes or pulls the ball (most likely it would push since pulling would probably slow it down more or require stricter timing)
Challenge answer: Spin it board-side down. Water is heavier than air, so centrifugal force will move the lighter air inward to the middle. Though the board has more contact, it has an air cushion effect, reducing friction. Putting the edges down, on the other hand, would concentrate more downward force into a smaller area, causing braking.
I was thinking maybe of rubbing vigorously one end area at a time… the frictional heat energy formed, would cause the air trapped in end segment would migrate towards middle cooler zone? Your method tho does seem more plausible
As Samuel L Jackson would say Correctomundo.
@@seanbatiz6620 That would just shake it up. But not even a lighter would do that. It would just expand the air if the fluid is water, and compress it if anything else. It wouldn't do anything to move the bubble.
@@seanbatiz6620 I thought about that too. But I don’t think that would work because air is more dense than steam unless the steam is at +160 decrees and in the glass I think it might explode. But it would be pretty cool if somebody did the math to see if instead of glass it was metal and find out if it would be possible maybe heating both ends equally. In fact it would be very cool if someone could prove or disprove or possible or not possible.
Fluid dynamics is not my thing.
Clever!
those marbles are really cool!
Glad you liked it
Wow, astig yun! Ganda ng arte!
If you look at the utterpoint of what goes in physics it really starts to look a lot like magic. I cant even picture how the first one works. This is great
I had one of the spiral oil drop things about 25 years ago! That's brought back some memories! 👍
that was the coolest one imo, the one with the green ramps and black liquid, I had one like the exploratorim branded dropper, thing mesmerized me for hours on end as a child haha, I guess I'm a bit simple
I still have mine but it’s blue
Was it Spencer’s who sold those? I remember seeing them at the mall back in the 90s
That pink and blue timer i legit got the same one lol. I have another one that had a windmill spinning thing with a smiley face on it and a ramp, then a family member wanted to get the smiley face out and tried hitting it, which made the face dislodged and fall from the part it was on, it still works but the face just sits at the bottom doing nothing. And unluckily, it was my favorite too. Oof :P
damn that's a long time ago
awesome video! great ideas for science fair project!
WAIT WHAT,but still good playing like that and cool
You are completely blowing my mind right now. Makes me want to get into physics big time thank you.
5:40 My favorite toy in the world is totally Uranium.
Kokichi Sugihara's ambiguous object was cool. Stickers of the Sol planets was a weird thing to showcase on a physics video, though. I had some of those oil timers in the 90s. The little dots eventually fail to merge back together and it looks like this unsatisfying wad of oil foam.
I always thought the oil drop timers were really cool. When I was younger my grandma had several that I would just spend an hour flipping over.
It amazes me that toys like these can entertain someone for hours my grandpa had a clock that measured time with marbles and me and my cousins would sit in front of it for hours and watch the marbles move. Next to that clock he had a big grandfather clock and by listening to the ticks of that clock we could see how the marbles clock would tell time and it was an interesting experience to see and hear the passage of time and it was more entertaining than watching tv and when we could not play outside due to rain or something like that it would fill our day with endless entertainment
7:56 Spinning, the water pressure of the edges will Put the Air in the middle, since the Air is less dense than water
You are intelligent :D
@@physicsfun Ther were, a Lot of Spinning solutions in these challenges, so i theoretically tried IT out.
@@physicsfun I am intelligent too I uploaded a video explaining how the one at 0:30 is fake!
@@HexagonalPrism19 But you're not smart enough to read the description.
I want the first one you showed with the marble really bad.
The cylindrical lens array also demonstrates how to bend light in order to camouflage or "make invisible" objects behind or underneath it.
I'm so grateful that you guys are into physics, 👍 keep up the good work!
(Someone that is not into physics but understands the importance. )
I wish I could buy the infinit marble but it to expensivx
what kinda physics??? almost all of these things in this video has nothing to do with phisics
@@vennox1598 Almost everything in the natural world that has to do with movement also includes physic. For example movement and mass, as well as light, Thank you for your input however.
@@oldtomfool They are only posting to get views and money. You make it sound like some altruistic exercise.
It isn't. Simply another money grabbing business. Vast swathes of the internet are simply money grabbing cesspits. Wake up to the real world.
@@PreservationEnthusiast lol, I don't care about this clip specifically, and I wasn't speaking to the content creator. But creating content is a job. Same as making a broom.
I've always been fascinated by this kind of stuff.
goodness, that brought back memories - i used to have one of those exploratorium oil drop timers!
Thanks for sharing
That Uranium was actually pretty scary. The knowledge that that little piece of metal is shooting off deadly particles at all times is unnerving.
I wish i could buy a ton of these cool toys and give it to schools. Love your video and thank you for the explanation for those who are really bad in physics
thank you for signalling your virtue
@@djocharablaikan8601 here, lemme sprinkle some more of my virtues and a dash of my vices unto you 🎉🎉🎉🎉🎉🎉
Sure you would
"Undisclosed internal components" it's my new favourite catchphrase
Impecable
My favorite fun physics toy to play with: uranium!
Oddly satisfying, as always.
My answer to the quiz:
Rotate the device, so the water is driven outward and the air is pressed into the center compartment.
One of the coolest informative channel I've stumbled on RUclips. Thanku Physicsfun.
Sad life for Uranus. Everyone forgets that Uranus also has rings
If I had a glass eye, I would want a vortex marble
Ball bearing clocks are cool too, my grandad had one. Used to fascinate me as a kid
Real?
@@samirmajumder8633 yeah Google them buddy
Congreve clock ?.
I first saw a very beautiful one, made from fine woods, in Las Vegas in 1978. Many years later there were cheap plastic knock-offs.
@@trappenweisseguy27 not sure if that's the proper name bud
I remember having an Oil Timer when I was a kid. Seeing this now makes me want to buy one.
2:32 Why do I see an enderpearl irl? Jokes asides, this is great!
Magical!
Somehow got in my reccomendation when i was doing something else. I thought it was 3 minutes and realized i watched 8 mins because how cool this is. Those are very cool
6:30 the oil drop timers. My 4 year old son has several of these. One identical to the first one shown. He has one that turns little wheels and a few others that do cool things. I always knew it was dyed oil but I figured the clear liquid was water. Never in my wildest thoughts would I have guessed Kerosene. But now it makes sense, water might be too thick for the proper flow. They need a less dense liquid like alcohol or gasoline. I guess Kerosene would be the better option. That basically makes them flammable if broken. I am not a paranoid parent so I will not take them from my son and deliver them to a "Haz-Mat" site. But I will make sure he is careful with them.
Like a reasonable, responsible adult! How refreshing. So many now would freak out and take them to HAZMAT disposal and sue to have them discontinued.
Kerosene is not that flammable when spilt. If it had a wick, then it's like regular oil
I remember back in the 1960s, as part of a science demo our 2nd grade teacher broke a thermometer and we got to play with the liquid metal mercury with our bare hands.
@@glasshalffull8625 Yeah, we had a jar of it in our class too, though the teacher warned us not to open it. So it was like we knew better than to mess with it but not enough to keep it out of the class altogether because there was always that one kid.
5:45 Get him some uranium for his 5th birthday, maybe a Geiger counter to go with it xD
The air bubble trick is simple. Spin it like a top and the dense liquid will go away whereas the less dense gas will push into the center
Yes! spinning the puzzle about its center makes it into a simple centrifuge, where centripetal acceleration creates a density gradient, and the water, which has much greater density than air, moves away from the center towards the ends of the tube.
Not sure how old this video is but the bubble puzzle is simple. Set it on a flat surface and shake it back and forth gently.
What a great channel. That first "toy" blew my mind!
I’ll be buying some of these for my mom, I’m sure she’ll love them. 🥰
Buying Uranium for Nuclear Science ❌
Buying Uranium for mom ✅
(just joking)
@@shootout3747 uranus would do
@@shootout3747 XD #normalizegivingUraniumtomom
A new Marketing idea :URanus to Go.... or :Happy Meal with Plutonium Toys -a funny Nuclear Disaster.we love to entertaine you.
@@shootout3747 yeah she will love some uranium!!!
3:44 - I know the Channel Cody's Lab did a video about doing a to scale solar system model. He ended up driving at least a state over.
Le me: Ooh, cool marble. I want one.
Ebay: I'll take your liver and one kidney
It's like im reading a science book, with moving images. I'd love to watch more
"A sience Book"??Go read a real Book and dont watch this fake stuff with cklickbait
3:05
Ah yes, our home *plant*
love those vortex marbles, wow
Glad you enjoyed!
the first one is so relaxing to watch
Glad you enjoyed.
Ambiguous Object Illusion: incredible design by Kokichi Sugihara of Meiji University in Japan, the inventor of this illusion and art form. A clever combination of reflection, perspective, and viewing angle produce this striking illusion. My vote for best gift from the G4G13 exchange last year.
Pretty cool seeing that Civil Defense meter. I worked on them in the 90's. I have one of these CDV 700's. There was also the 715 which was for higher levels of radiation. Then there was the 742 that measured the total dose you got. They were kept in fallout shelters and we exchanged them with freshly tested and calibrated ones with new batteries every 4 years until USSR broke up. Looks like we might need them again.
How dangerous is that object in the video? I'm assuming not very, but, still wouldn't want to keep it around. I feel like even small amounts of radiation can add up over time..
@@FlipswitchX It does add up over time but that's a very low level, It's not very dangerous, if it was it would have pegged the needle on the meter. That 700 actually has a small piece of radioactive material taped to the side of it so you can make sure the meter works
How do the radioactively emitted charged particles in the uranium inside the evacuated glass tube - get through the glass? If the emission was only an electromagnetic wave it would be obvious. But the radioactive emission from the uranium is actual charged particles. How is it that the glass atoms allow them to just pass right through?
@@Greg_Chase I'm not sure on the physics of it but I remember TDS. Time of exposure, Distance from said radioactive object and Shielding. There are 3 kinds of radiation. Alpha (very weak), Beta (stronger) and gamma, the worst. Fallout shelters were made under ground so the earth would give you some shielding. Lead is the best. I still have a lead pig that stored our training sources in. It's about 9 inches cubed and weighs about 200 lbs. The denser the material the more shielding. That thin glass is nothing to radiation
@@steveg7115 glass can stop alpha radiation. beta,im not sure about in that vile. leaded glass may stop it
3:33 Imagine at the end of all the planets, moons, and the sun, it ends with 'ur mom'
The first one is very trippy
I watched a movie called Making A Perpetual Motion Machine. It was a slow build, but the ending was non-stop action.
0:46 It's a perpetual motion machine 🤯
Hi, but u know is aided by the power of the wind from the left, right?
WOW! great content! I wish I had paid more attention to physics 🤔😁
Amazing stuff! And the music? 5 stars *****
Glad you enjoyed
Really super oddly satisfying stuff!
Glad you enjoyed.
Physics describes the real magic of the universe.
3:00 "twice the size of our home plant"?
You can get the bubble to the center by using centrifugal force, you get the heaviest inside the piece to the sides, and so the lightest to the center.
It works better if you do that in free fall, the water goes to the sides and the air stays in the center.
Same laws different physics. Both r correct
Ahhhh physics is brilliant . 1 month ago = millions of views .✨♥️
I actually have an oil drop timer at home it looks excatly like the first one but with blue and green
2:20 I don't neded but I want it.
2:10 When I saw the glass marble at first, I was like: "What's do special about a spiral which looks like a ball of glass?"
Make a 10 hour loop of the Perpetual Motion Simulator
The ball would stop since air drag and friction. There's something powering it back up so obviously it'll never run out "until the thing powering it runs out"
Yes!
Perpetual Motion Simulator: this marble machine device does not break any laws of thermodynamics- but it sure looks like it! When I first saw videos of this piece of kinetic art I thought the effect was due to video editing, but in fact the base contains a "👉 power source" and very clever mechanism (I used compass for clue/partial reveal). An amazing piece of art by William Le crafted from stainless steel wire, doussie hardwood, and undisclosed internal components. A remarkable addition to my collection!
(Please read video description for details)
7:57 just spin the thing fast enough
Liquid is more dense than gas and will push gas out of the sides to the middle while liquid will leave middle and go to the sides