@@mccauleymccranie3752 I'm no astrophysicist but I know that light almost entirely lacks weight so i doubt it would be dragged along like some tokyo drift light beam if you shot it out sideways.... I'd entirely guess that some weird time physics would happen for an instant to correct the "way of things" and that light would continue on it's way as if nothing is going on. ..but again that's just a guess and i'm no physicist.
Leslie Asher You didn’t know, but Schrödinger asked Einstein to look after his cat for several days. Einstein needed to somehow entertain the cat and he had the idea - a laser!
@@ME-ru4hv Science has determined photons are a thing. Your lack of understanding is your problem. "The photon is a type of elementary particle. It is the quantum of the electromagnetic field including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force (even when static via virtual particles). The invariant mass of the photon is zero; it always moves at the speed of light in a vacuum."
I love how theoretical physicists can just figure something out, not have any idea what it could be used for, file it away as a curiosity, and then decades later somebody uses it to make a revolutionary break through.
@@BlackEpyon That's because you can't think broadly enough to imagine theoretical physics. It was used to create the first nuclear weapons. Computers (the one you are using ) were a theory at one time as were many other inventions. It's a good thing everyone isn't as small minded as you.
Wait a minute... My retina is 2 to 3 times more sensitive to green light, as opposed to red light? I will have to remember that, the next time I'm in traffic court. Thanks Neal.
The moments when Chuck gets super excited about science warms my heart. Scientists and science enthusiasts are like kids in candy stores and we love it.
A few more you may not have known. TASER Thomas A Swift Electric Rifle RADAR RAdio Detection And Ranging SCUBA Self Contained Underwater Breathing Apparatus
@John Connolly He was saying the editor is doing such a wonderful job that they should give him more money as a reward. Usually the "x needs a raise!" comments are used to express how invaluable that person is to an operation. No worries! 😆😝😜
because no one wants to work for cheap, take their jobs home with them w/o pay and babysit children who weren't raised right and have no respect for teachers.
Wait, when he explained it initially he said the [random] atom's electron absorbs the photon causing it to excite (elevate) momentarily, then it calms back down (deescalate), which then causes the electron to re-release the photon. This is 1 photon that gets absorbed momentarily and then released. But then all of a sudden they're showing 2 photons are released for every 1 photon that's absorbed? How does this not break the conservation of energy? And where does the 2nd photon come from? If it's converted energy from the atom, wouldn't the atom degrade over time?
Also if electrons were to orbit the nucleus as Neil described that too would break the laws of conservation of energy. Bohr's model of the atom was replaced by Schrodinger's quantum mechanical model of the atom.
@@dankdreamz I was thinking about that too as I was watching the demo. But I just figured if you were blasting an atom with protons you were bound to hit electrons regardless.. it's just that I watched an explanation of how lasers work meant for children to understand, but I know less than ever now mixed with misinformation
I work on high power lasers for a living and they missed some majorly important key facts... The whole process starts by adding in "pump" energy - an electrical pulse that brings the "gain medium" (ie the atoms) up to the excited state. A few of these naturally decay to a low energy state and in the process release photons in a random direction. The "resonator cavity" optics then reflect back photons that are heading in the "right direction", which creates that back and forth snowball effect where more and more photons are generated. Each photon generated by a photon knocking into a particle that was previously "pumped" by the initial electrical pulse will be emitted with the same wavelength, phase and direction as the photon that bumped it. If you remove the resonator optics all you get is a bright glow in random directions and no "laser". Btw pretty much every electronic device (CPU, RAM, processor, integrated circuit, etc) is made using lasers to project the pattern of the chip onto the silicon substrate. The process is called DUV lithography. Kind of shocked he left this out since electronics are easily the biggest change to humanity that has come from lasers...
@@sooocheesy I hope you monitor this comment. I have a question. If you shine a laser at a curved mirror, could you bounce that laser back to another curved mirror that would cause the laser to bounce back and forth forever?
Phdintheory there is a way for you to bounce a photon back and fourth; however, it’s not forever. Each time it’s reflected a little tiny bit of the photon gets absorbed by the mirror. You can actually test this. Have you ever seen 2 mirrors facing each other? That’s literally what you’re describing where the light keeps being reflected back and fourth. When 2 mirrors face each other I think people call it an “infinite mirror” and if u look at it, each time it reflects the image gets a bit darker meaning photons are being either lost or absorbed. (The mirror also gets a bit greener each time it’s reflected meaning mirrors are actually green)
@@nathanielb9016 i dont think we'll ever invent teleportation, to turn you whole body into pure energy then reorganize you back together without complications would take an enormous amount of power
@@jordanholliday9163 If you have the ability to even do teleportation, i doubt the problem will be power. More like the actual logistics of reorganizing people.
These are just applications of some "weird", "theoretical" and "i wonder how we will ever use that" stuff. That's all thanks to the fact: THE SCIENCE OF TODAY IS THE TECHNOLOGY OF TOMORROW.
learned about lasers in college physics class, so this was a nice refresher (though the math regarding lasers was a bit too tough for me...) The James Bond reference was a nice bonus! The laser was indeed Goldfinger, but the villain with the cat was Earst Blofeld (had to look that up). Two villain references for the price of one!
Chuck Nice is the #1 reason I listen to these any time I drive or have spare time. Came for Neil, stayed for Chuck. Love the show, please never end it.
Good video guys! I have one of those little green lasers. I’m an amateur astronomer, and I love taking my big “expensive” telescope out to public star parties and other events. I find that people are more impressed by my inexpensive little green laser, than by my $4,000 computer-guided telescope. I can be showing the Rings of Saturn, but my most frequent comments are about that little green laser… and how much did it cost?.. and where can I get one?? I love how one kid said: “It looks like it’s touching the star!” 🤪😎😄
Nearly 50 years on the planet 🌎 and just found out what lasers are all about in a few minutes. Gonna show this to my kids. Brilliant, love learning new stuff everyday. ❤️🤘
I got Cateract surgery, and there was some leftover layers left after the initial operation, that was removed by slamming two lasers together at the exact spot where the layers were in my eye,. Took 2 minutes, and was done manually by a doctor with a good electron microscope and a couple lasers. amazing tbh
I wish I could attach an image. My brother created the first Residential Laser Installation in an Abstract Art Collector's home in Dallas, TX USA - back in the mid-nineteen-eighties - using two types - Argon, & Radon Gas devices. It had to be certified both by the FAA & FDA. The setup included air-directed smoke devices, and was primarily used for entertainment - not so much for the art - which was highlight by specialized Halcyon & LED Lighting - whose technologies continue to advance yearly.
How about using lasers for measuring distances. Some are great for micro measurements and others are great for measuring long distances such as range finders for military applications. Robots are using them for detecting the presence/absence of objects so they will not impact them (automated guided vehicles in manufacturing). They are used for setting up walls of detection with programmed "windows" in the wall that will allow objects to pass through without triggering an alarm
As a concentrated, highly focussed beam of energy, I was always impressed by how similar H. G. Wells' Martian heat ray was to a laser beam. Science written about in science fiction before the fact.
The most important part of stimulated emission that you failed to mention is that the emitted photon is in phase with, and move in the same direction as, the photon that stimulated the emission. This is why the laser can get so powerful, all the photons are moving in lockstep together so they constructively interfere with each other.
@@dankdreamz Einstein NOT Schrodinger proved that. Read T.S Kuhn and Douglas Stone's books on the topic for more rigorous detail or Abraham Pais "Subtle is the Lord." Heck, Einstein deserves about 40% of the credit for Schrodinger's wave function. Tbf, Maxwell, Poincare, Lorentz and Fitzgerald also deserve partial credit for Einsteins theory of Special Relativity.
And on the third day Einstein said "Let there be laser", and there was a laser. And he saw that it was cool. And then he rested. And while he rested, he did all sorts of mental experiments.
Fun fact. The laser reads the thickness of the white lines of the bar code. Not the black ones as light is 'fully' absorbed here so the light does not reflect back to the light sensor in the barcode scanner device.
OK so I get the whole electron excitement, bouncing photons off a reflective wall intensifying it. But then it all escapes, right? Great explanation of how a laser works but you forgot the ending. How do the photons stay cohesive (for lack of better term) after escaping the reflective walls into the chaos of air ?(i.e. from cat toy). Asking for my cat.
AMAZING video! Educational AND entertaining! But am I mistaken or does Chuck's t-shirt say to end caffeine?!? Is that like secretly switching my regular coffee for decaf?
One small but important detail not mentioned (sorry if I missed it) is in a LASER one of the two mirrors only reflects light to about the order of 99% so that some of it can actually escape. So the light you see coming out of it is only 1% (rough estimate) as bright as the light trapped inside the cavity. Also worth mentioning is that some super expensive LASERs can produce a single wavelength of light. LASERs and similar artificial light sources are the only that can do that. Natural light sources typically spawn a broad bandwidth of wavelengths. What this again means is, if we find a source of light in the sky that emitts only a very narrow band of light, it must be artificial! A LASER pointed at us bascially!
Wouldn't it be able to be multiplied within a cavity so much that it would create enough energy to summon e=mc2 to create Matter within the frame of the cavity?
Talking about getting excited in the right environment; I wish my thing was listening. It keeps embarrassing me in the worst places possible. Like last time I had a very important presentation and I was nervous, then BAM, there it was up like a pole. At least it made the audience laugh which is a plus... I guess.
When he referenced the James Bond movie laser scene it reminded me of Dr. Evil from Austin Powers, using "air quotes" every time he said the word "laser" as if it was imaginary.
I really love your chemistry. When I started watching you guys coming from whoever was there before Chuck (back in the day, many ppl around a big table ina big round of smart ppl and a token funny dude), I thought he's just a guy that wants to be funny, but there were so many great moments like today where I really see that Chuck is funny and is genuinely interested and knowledgeable in these science facts and not just focused on his punch lines. Really really great, you two :) One small criticism about your graphics, though. Looking at them I understood that the electron consumes the photon, but that would mean the net energy / amount of photons flying around would be constant and then there would be no accumulation, right? So as I looked it up it looks like that for every "excitement" there is one more photon flying in the same direction, right? Not quite sure I understand where the energy COMES FROM ... or the photons.... but that's ok. I do not need to understand everything xD
Well, perception of what light is stronger than the other could be relatively to the eye! Cause a myope will detect red light easier and hiperopes will see green light better! The story is bigger than that but that's the way it is! Love your explanations!
What have you used lasers for?
cut my lawn. (The city put a stop to that.....real quick)
Playing Minecraft wit da bois
StarTalk cutting a hole through the wall so I don’t have to open the door
To signal other friendly convos in Iraq
@@mccauleymccranie3752 I'm no astrophysicist but I know that light almost entirely lacks weight so i doubt it would be dragged along like some tokyo drift light beam if you shot it out sideways.... I'd entirely guess that some weird time physics would happen for an instant to correct the "way of things" and that light would continue on it's way as if nothing is going on. ..but again that's just a guess and i'm no physicist.
I think Einstein would have enjoyed lasers being used to entertain cats.
Leslie Asher You didn’t know, but Schrödinger asked Einstein to look after his cat for several days. Einstein needed to somehow entertain the cat and he had the idea - a laser!
@@romangerasimov5183 In the process of laser testing, Schrodinger's cat became just a regular dead cat.
@@youwillnotknowme *Slowly puts cat back in box*
Thats on those occasions when he hing out with Schrödinger.
@@0079Matthew and that's how Einstein solved the uncertainty principal , he knew the cat was dead .
"so there was no laser, and then he mathematically said hey check out this laser"
Witch masks me exited about wormholes !!!
@@ME-ru4hv The Laser was hypothesized using mathematics and theory.
And it works .
Photons are a thing.
@@ME-ru4hv Science has determined photons are a thing. Your lack of understanding is your problem.
"The photon is a type of elementary particle. It is the quantum of the electromagnetic field including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force (even when static via virtual particles). The invariant mass of the photon is zero; it always moves at the speed of light in a vacuum."
I love how theoretical physicists can just figure something out, not have any idea what it could be used for, file it away as a curiosity, and then decades later somebody uses it to make a revolutionary break through.
@@BlackEpyon That's because you can't think broadly enough to imagine theoretical physics. It was used to create the first nuclear weapons. Computers (the one you are using ) were a theory at one time as were many other inventions. It's a good thing everyone isn't as small minded as you.
Wait a minute... My retina is 2 to 3 times more sensitive to green light, as opposed to red light? I will have to remember that, the next time I'm in traffic court.
Thanks Neal.
LOL
Lol😂😂
lmfao
Good one lol
Lmao nice
the zoom editing is everything in this video, A+
😎
It was hilarious!
😷
The moments when Chuck gets super excited about science warms my heart. Scientists and science enthusiasts are like kids in candy stores and we love it.
never knew "laser" was an acronym 😱 my mind is blown
A few more you may not have known.
TASER Thomas A Swift Electric Rifle
RADAR RAdio Detection And Ranging
SCUBA Self Contained Underwater Breathing Apparatus
David Stoler probably should of been LTASER Look Thomas a Swift Electric Rifle
@@5777Whatup that's clever and amazing 😄 thanks
GNU is not unix
@@Phil8sheo my mind is blown again 😱
YOUR EDITOR NEEDS A RAISE
:)
Clearly it's the editor who replies to RUclips comments, haha!
Not that I disagree... Awesome work!
Yeah it's very good editing. It makes it easier to understand for a layman like myself.
The James bond bit made my day 🤣🤣
@John Connolly He was saying the editor is doing such a wonderful job that they should give him more money as a reward. Usually the "x needs a raise!" comments are used to express how invaluable that person is to an operation.
No worries! 😆😝😜
Einstein was an absolute BOSS. I wish we had just a few more decades of his brain.
i bet he wasn't appreciated when he was young until people started to realize his brilliance.
@Derrick campbell Yeah, I thought I also heard it was in the trunk of a car for a really long time too. lol
@@J040PL7 I don't think he was. He was criticized and told he'd never be anything iirc. I think he flunked math as well. ;p
@@J040PL7 I bet the people who knew him appreciated his brilliance
@@Jay-Kaizo that's just 1 teacher. I bet most geniuses had that one person who tells them they are not as intelligent as they think.
Why we can't have teachers like him in our school
because no one wants to work for cheap, take their jobs home with them w/o pay and babysit children who weren't raised right and have no respect for teachers.
Joe wut
He is the Michael Jordan of explaining science. And he is just a rare.
We can't afford the school fee then
We do
I swear...I feel smarter every time I listen to Mr. Tyson. I learn so much. Plus, the banter these two have between them is is so funny
4:15-4:19 Neil is so adorable! So pure, so cute😂❤️🔥
0:54 "wow wait a minute are you for real?"
*squeaky voice* "YEEEEEEEEES"
4:14 Neil's little dance is lit af 🔥
3:45 when you and your friend finally figure out how to beat a level in a video game
I laughed so hard, perhaps harder than I should have xD Thanks for the quick trip back to the 90s.
Neil deGrasse Tyson, you are the bedst for our world.
And I say that, in a small country like Denmark. Love you vidio's,. keep doing it!
The reaction we deserved. Chuck Nice is just me watching the video
Oh great. Someone gave Chuck laser vision. There goes the neighborhood.
P.S. We're all trying to ignore you, Chuck.
At least it's a Nice laser
That thumbnail rocks
Chuck realising and getting his mind blown by science is so relatable. I remember my earlier days when I learnt about Lasers and other stuff.
Chuck makes these extra fun to watch, glad you two are doing these videos!
Danfga2 Chuck is the buffer who drops code lol ! Wake up
I personally find chuck distracting.
You guys rock!! I learn so much, every time!!! Thank you for your knowledge!!!
Thanks for watching!
Woah !! this man just taught a chapter in physics just under 20 min in the best way possible.
Sorry brother but its taught, not teached.
6:41 The real reason Luke was able to beat Vader in a lightsaber fight.
Amazing. And the reference to Goldfinger was gold :D
Wait, when he explained it initially he said the [random] atom's electron absorbs the photon causing it to excite (elevate) momentarily, then it calms back down (deescalate), which then causes the electron to re-release the photon. This is 1 photon that gets absorbed momentarily and then released. But then all of a sudden they're showing 2 photons are released for every 1 photon that's absorbed? How does this not break the conservation of energy? And where does the 2nd photon come from? If it's converted energy from the atom, wouldn't the atom degrade over time?
Also if electrons were to orbit the nucleus as Neil described that too would break the laws of conservation of energy. Bohr's model of the atom was replaced by Schrodinger's quantum mechanical model of the atom.
@@dankdreamz I was thinking about that too as I was watching the demo. But I just figured if you were blasting an atom with protons you were bound to hit electrons regardless.. it's just that I watched an explanation of how lasers work meant for children to understand, but I know less than ever now mixed with misinformation
I work on high power lasers for a living and they missed some majorly important key facts... The whole process starts by adding in "pump" energy - an electrical pulse that brings the "gain medium" (ie the atoms) up to the excited state. A few of these naturally decay to a low energy state and in the process release photons in a random direction. The "resonator cavity" optics then reflect back photons that are heading in the "right direction", which creates that back and forth snowball effect where more and more photons are generated. Each photon generated by a photon knocking into a particle that was previously "pumped" by the initial electrical pulse will be emitted with the same wavelength, phase and direction as the photon that bumped it. If you remove the resonator optics all you get is a bright glow in random directions and no "laser".
Btw pretty much every electronic device (CPU, RAM, processor, integrated circuit, etc) is made using lasers to project the pattern of the chip onto the silicon substrate. The process is called DUV lithography. Kind of shocked he left this out since electronics are easily the biggest change to humanity that has come from lasers...
@@sooocheesy I hope you monitor this comment. I have a question. If you shine a laser at a curved mirror, could you bounce that laser back to another curved mirror that would cause the laser to bounce back and forth forever?
Phdintheory there is a way for you to bounce a photon back and fourth; however, it’s not forever. Each time it’s reflected a little tiny bit of the photon gets absorbed by the mirror. You can actually test this. Have you ever seen 2 mirrors facing each other? That’s literally what you’re describing where the light keeps being reflected back and fourth. When 2 mirrors face each other I think people call it an “infinite mirror” and if u look at it, each time it reflects the image gets a bit darker meaning photons are being either lost or absorbed. (The mirror also gets a bit greener each time it’s reflected meaning mirrors are actually green)
Thank you so much! An intelligent explanation WITHOUT BACKGROUND MUSIC! Brilliant!
Bro wtf is einstein. This man done discovered everything
Malik in the future he may be the reason we create teleportation
@@nathanielb9016 i dont think we'll ever invent teleportation, to turn you whole body into pure energy then reorganize you back together without complications would take an enormous amount of power
@@jordanholliday9163 If you have the ability to even do teleportation, i doubt the problem will be power. More like the actual logistics of reorganizing people.
@@leptinainccm Yep. Putting it all back together. Not just the hardware, but mostly the software. Meaning the human's personality.
These are just applications of some "weird", "theoretical" and "i wonder how we will ever use that" stuff.
That's all thanks to the fact:
THE SCIENCE OF TODAY IS THE TECHNOLOGY OF TOMORROW.
learned about lasers in college physics class, so this was a nice refresher (though the math regarding lasers was a bit too tough for me...)
The James Bond reference was a nice bonus! The laser was indeed Goldfinger, but the villain with the cat was Earst Blofeld (had to look that up). Two villain references for the price of one!
This was one of their more goofy humor yet informative clips, love it! 🥰
Chuck Nice is the #1 reason I listen to these any time I drive or have spare time. Came for Neil, stayed for Chuck. Love the show, please never end it.
6:09 i freaking jumped out of my seat xD
I think Neil nearly did too lol
Fun Fact, Einstein wrote the first paper on the LASER. Should've win a Nobel Prize for it. Super genius.
I love when Chuck's 💬💡 moments occur! 🤣 It happens every episode too! You guys are awesome together!
Good video guys! I have one of those little green lasers. I’m an amateur astronomer, and I love taking my big “expensive” telescope out to public star parties and other events. I find that people are more impressed by my inexpensive little green laser, than by my $4,000 computer-guided telescope. I can be showing the Rings of Saturn, but my most frequent comments are about that little green laser… and how much did it cost?.. and where can I get one?? I love how one kid said: “It looks like it’s touching the star!” 🤪😎😄
I love how father and Son are on these videos, makes it so heart warming they do this channel together.
Nearly 50 years on the planet 🌎 and just found out what lasers are all about in a few minutes. Gonna show this to my kids. Brilliant, love learning new stuff everyday. ❤️🤘
Amazing, I always wanted to learn more about lasers.
This video was made just for you
I got Cateract surgery, and there was some leftover layers left after the initial operation, that was removed by slamming two lasers together at the exact spot where the layers were in my eye,. Took 2 minutes, and was done manually by a doctor with a good electron microscope and a couple lasers. amazing tbh
5:28 that sneak diss from Neil lol
I love the rapport between these two.
I like these short clips of certain subjects make more startalk ⭐️
We've got more coming! Stay tuned.
You guys are the best. I really cant get enough ....
Could not watch the premiere live, had to wait for the upload. It was unavailable in my location unfortunately. :(
It’s available everywhere - we had an issue with the old video so it was reuploded.
I don't know how to say this, but I keep listening to Dr. Neil DeGrasse Tyson, while I am programming.
you always learn and laugh here, tysm👍
I wish I could attach an image. My brother created the first Residential Laser Installation in an Abstract Art Collector's home in Dallas, TX USA - back in the mid-nineteen-eighties - using two types - Argon, & Radon Gas devices. It had to be certified both by the FAA & FDA. The setup included air-directed smoke devices, and was primarily used for entertainment - not so much for the art - which was highlight by specialized Halcyon & LED Lighting - whose technologies continue to advance yearly.
Thumb's up for Albert Einstien
How about using lasers for measuring distances. Some are great for micro measurements and others are great for measuring long distances such as range finders for military applications. Robots are using them for detecting the presence/absence of objects so they will not impact them (automated guided vehicles in manufacturing). They are used for setting up walls of detection with programmed "windows" in the wall that will allow objects to pass through without triggering an alarm
"that's kinda illegal... oh, but you... you know people" lol
Neil straight up jumped when chuck screamed about the laser on his stomach. Had me dieing. Lol
I was watching cosmos' "light episode" and this was upload. What a coincidence
Look into the laws of large numbers and you will see it was more incidental than coincidentally.
I love how excited they get!
I love Neil 🤘
Great duo! Especially Neil, my man, make the complex look simple 😀😀!
So glad I am a laser getting activated with this gamma ray time loop !
As a concentrated, highly focussed beam of energy, I was always impressed by how similar H. G. Wells' Martian heat ray was to a laser beam. Science written about in science fiction before the fact.
Wait how does the bath of exciting photons stimulate the emission of additional photons?
If Chuck didn’t interrupt Neil so much we’d probably know haha
We still don't know.
I listen to you while going to bed, my neighbors complained about Chuck's screaming:D
Neil is very epic
You guys kill me!! Just the opening photo... I have not even watched this video yet! 😎👍
Light Amplification by the Stimulated Emission of Radiation = LASER.
Thank you for this video.
I haven't known that science is this much fun! 😃every class should have a teacher like him and a student like my boi!
You forgot the most important application of the laser: cats!
These two make the best pair! Neil is already captivating. But with Chuck added, they are on another level.
Neil, "So....." deGrasse Tyson
I wish I had this show when I was a kid.
NEIL DEGRASSE TYSON IS ENTERTAINING ENOUGH ALL BY HIMSELF
5:15 stellar Connery impression ⭐️⭐️⭐️⭐️⭐️
4:58 He never answers this question :( I tried looking online but can't figure out who would have "a lot of lasers".
He was just about to say "Bell Labs" (physicists) before Chuck mentioned James Bond.
The most important part of stimulated emission that you failed to mention is that the emitted photon is in phase with, and move in the same direction as, the photon that stimulated the emission. This is why the laser can get so powerful, all the photons are moving in lockstep together so they constructively interfere with each other.
Any idea why he stated that electrons orbit the nucleus when that theory was disproved by Schrodinger?
@@dankdreamz probably just because it's how the lay person would understand it, it's simpler than giving a full physics lesson
@@dankdreamz Einstein NOT Schrodinger proved that.
Read T.S Kuhn and Douglas Stone's books on the topic for more rigorous detail or Abraham Pais "Subtle is the Lord."
Heck, Einstein deserves about 40% of the credit for Schrodinger's wave function. Tbf, Maxwell, Poincare, Lorentz and Fitzgerald also deserve partial credit for Einsteins theory of Special Relativity.
Well said Dennis. You took the words out of my mouth.
And on the third day Einstein said "Let there be laser", and there was a laser. And he saw that it was cool. And then he rested. And while he rested, he did all sorts of mental experiments.
Fun fact. The laser reads the thickness of the white lines of the bar code. Not the black ones as light is 'fully' absorbed here so the light does not reflect back to the light sensor in the barcode scanner device.
Good good but ..
How do I get my death star??
Asking for a friend 😏
You must follow the force 😂
Watch the Science Asylum video on it.
Go to Amazon.com...!! lol
OK so I get the whole electron excitement, bouncing photons off a reflective wall intensifying it. But then it all escapes, right? Great explanation of how a laser works but you forgot the ending. How do the photons stay cohesive (for lack of better term) after escaping the reflective walls into the chaos of air ?(i.e. from cat toy). Asking for my cat.
Where does the photons that excites the electrons come from?
A flash tube or LED.
@@stranger_danger1900 any idea why Neil was describing the disproved Bohr model of the atom when he said electrons orbit the nucleus?
@@dankdreamz We still use that model today in schools as a layperson has an easier time understanding that than Probability waves and electron clouds.
An electrical pump
AMAZING video! Educational AND entertaining! But am I mistaken or does Chuck's t-shirt say to end caffeine?!? Is that like secretly switching my regular coffee for decaf?
Actually it was Dr Evil who made the "laser"
I saw it in a "historical document," so it must be true!
One small but important detail not mentioned (sorry if I missed it) is in a LASER one of the two mirrors only reflects light to about the order of 99% so that some of it can actually escape. So the light you see coming out of it is only 1% (rough estimate) as bright as the light trapped inside the cavity. Also worth mentioning is that some super expensive LASERs can produce a single wavelength of light. LASERs and similar artificial light sources are the only that can do that. Natural light sources typically spawn a broad bandwidth of wavelengths. What this again means is, if we find a source of light in the sky that emitts only a very narrow band of light, it must be artificial! A LASER pointed at us bascially!
First
Damn it you win
Faack you
@@davidfuhr5455 first time
I went for the like first, thats what cost me first comment which we all know is what REALLY matters.
I tip my hat good sir
The co-host deserves a raise :)
Is Chuck writing this?
StarTalk Wow. Yes!! ...but a different Chuck 😎
Thanks in advance for giving him a raise 👊😜
oof im not first
but just as cool as someone who did. :D
@@CooKiesHouseCannabisCo
:'D
Beginning to understand Tyson’s brilliance
Love the editing in this episode!
This was a fun video you guys should do this more often
Stay tuned!
More of this please.
What I find amazing is its 2020 and a COMEDIAN understands science. He gets it. Crazy how things change over time.
these 2 are great at working together.
Wouldn't it be able to be multiplied within a cavity so much that it would create enough energy to summon e=mc2 to create Matter within the frame of the cavity?
The only explanation that was at the perfect level to understand.
i would love to just spend a day with Neil at a science museum. dude is so smart and down to earth with a sense of humor. rare combo
Yes but he needs to stop interrupting his interviewers. Watch his episodes with Joe Rogan. It's infuriating how much he interrupts Joe.
I used to build PMTs for Varian in the 70s. Could you do a segment on what they are, how they work, and what they are used for?
Talking about getting excited in the right environment; I wish my thing was listening. It keeps embarrassing me in the worst places possible. Like last time I had a very important presentation and I was nervous, then BAM, there it was up like a pole. At least it made the audience laugh which is a plus... I guess.
When he referenced the James Bond movie laser scene it reminded me of Dr. Evil from Austin Powers, using "air quotes" every time he said the word "laser" as if it was imaginary.
Right? 😂😂
I really love your chemistry. When I started watching you guys coming from whoever was there before Chuck (back in the day, many ppl around a big table ina big round of smart ppl and a token funny dude), I thought he's just a guy that wants to be funny, but there were so many great moments like today where I really see that Chuck is funny and is genuinely interested and knowledgeable in these science facts and not just focused on his punch lines.
Really really great, you two :)
One small criticism about your graphics, though. Looking at them I understood that the electron consumes the photon, but that would mean the net energy / amount of photons flying around would be constant and then there would be no accumulation, right? So as I looked it up it looks like that for every "excitement" there is one more photon flying in the same direction, right?
Not quite sure I understand where the energy COMES FROM ... or the photons.... but that's ok. I do not need to understand everything xD
6:12 Chuck made Neil jump when he pointed the laser at him 🤣
This program is so addictive.
Well, perception of what light is stronger than the other could be relatively to the eye! Cause a myope will detect red light easier and hiperopes will see green light better! The story is bigger than that but that's the way it is! Love your explanations!
Man, these two make learning fun!!
I could listen to these two all day. They're the best team.
I like this style of video, the interactions between Neil and Chuck are gold