How Lasers Work, with Neil deGrasse Tyson 

cut my lawn. (The city put a stop to that.....real quick)

Playing Minecraft wit da bois

What would happen if you was going light speed and you fired a light 90° at the same time .. what would happen to the light getting shot from the side how would it travel

StarTalk cutting a hole through the wall so I don’t have to open the door

To signal other friendly convos in Iraq

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 .

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.

:)

Clearly it's the editor who replies to RU-vid 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! 😆😝😜

LOL

Lol😂😂

lmfao

Good one lol

Lmao nice

😎

It was hilarious!

😷

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

@@chacdogful that's clever and amazing 😄 thanks

GNU is not unix

@@Phil8sheo my mind is blown again 😱

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.

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 laughed so hard, perhaps harder than I should have xD Thanks for the quick trip back to the 90s.

P.S. We're all trying to ignore you, Chuck.

At least it's a Nice laser

That thumbnail rocks

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.

Danfga2 Chuck is the buffer who drops code lol ! Wake up

I personally find chuck distracting.

Thanks for watching!

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)

Sorry brother but its taught, not teached.

I think Neil nearly did too lol

This video was made just for you

We've got more coming! Stay tuned.

It’s available everywhere - we had an issue with the old video so it was reuploded.

Look into the laws of large numbers and you will see it was more incidental than coincidentally.

If Chuck didn’t interrupt Neil so much we’d probably know haha

We still don't know.

You must follow the force 😂

Watch the Science Asylum video on it.

Go to Amazon.com...!! lol

He was just about to say "Bell Labs" (physicists) before Chuck mentioned James Bond.

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

I saw it in a "historical document," so it must be true!

but just as cool as someone who did. :D

@@cookieshousecannabisco6963 :'D

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

Stay tuned!