How lasers work (in theory)

[TheWhatMASTER]

lol ine is bigger than the other one

[Randomness65535]

1:20

The photons in the middle - threesome.

[MachineKing32]

:firenmahlazer:

[AxjZOne]

"Oh hey photon... you look good today. ... Mind if I... ask you for a drink? wait, hey! Where you going? WAIT"

[bloodspilla55]

I just come here to watch him draw.... Cuz I don't shit he is saying.

[marcuelcajon]

Imagine two coins. Poor kids do that daily, while being bombarded with photons.

[MrYonomequejo]

Imagine two coins and Angelina Jolie nipple got it! Solve

[lolziesish]

first, photons aren't really like digital signals, they're not "different" or "the same". Maybe I just misunderstood your explanation. Second, I'm pretty sure other atoms are stimulated to emit light when another passes by because it transmit enough energy for that second atom to create a photon of its own. Same process for them to change directions, it's all energy transfer.

[tabaks]

@lolziesish No.

[ZettaFan]

Ok. So what if you had a one way mirror on the inside of the laser, could that possibly result in infinite light!?!

[tabaks]

@ZettaFan No.

[analyseforu]

Time to buy a new marker.

[Deadmau5wannabe]

this really helped me for my science project

[Deathray75]

@flamingfalkor So what about this if i hit my two pans together as hard as i can apart from becoming deaf light does seems to leak out. Its it simply that i dont have enought "umpth" to cause this

[darkilustrisimus]

I killed my cat with laser

[tabaks]

@darkilustrisimus There are meds for what you suffer from.

[newbiedoodle]

1:16 Well, we seem to have a threeway... Look at the bottom of the laser.

[aluisious]

...this video didn't explain dink.

[Deathray75]

I am a idiot but someone please tell me how you "excite atoms". is it through heat? if so then when I put a pot on the stove laser don't shoot out of it? Remember i dunno anything so yeah

[9hello123]

@Deathray75 Heat works, or electricity or light. Practically anything that can transfer energy.

If you heat up a pot enough light does come out of it, you can see it glow.

[flamingfalkor]

@Deathray75 There's two main ways, collisions and light. Collisions would be like heat and light would be like solar cells. When atoms collide they release heat, so a greater number of hot atoms (like a fire) produces more heat (like fire heating metal). Light excites atoms by making their electrons "jump" to a higher energy level. When the valence (outermost) electrons are excited like this they escape from their orbits and are released as electricity.

[MrPeeepe]

LASER: Light Amplification by Stimulated Emission of Radiation. That gives you an idea of how a laser works ;)

[HSAdestroy]

Awkward explaination, probably due to the limitations that a minute brings when trying to explain higher level physics.

[repairdroid77]

Light Amplification through Stimulated Emission of Radiation = LASER. The radiation in this case is photons.

[khosrow]

"imagine two coins...ecept photons are nothing like coins" fuck you XD

[tabaks]

@khosrow Just imagine coins, leave the rest to smart people.

[NatBassDude]

If he stuck his hand into the laser...all of his protons would join the other light emitting ones. Wouldn't he turn into a huge light?

[purehawaiianboi23]

So wait one way for a photon to be different and two way to be the same. would that be refering to photons being -1 and +1? and the different state would be?

[angelicgirl01]

photons are so romantic <3

[mizakzee]

It's a god damned photon orgy in there!

[zucchina89]

<3 :)

[JakeSully115]

So let me get this straight. If I put a lamp in a box covered with tin foil from the inside, and cut a small hole somewhere in the box, I will have just made a laser?

[DinoLord64]

@JakeSully115 Ure a genius!!

[DianaEpicAwesome]

a threesome of photon?

[19mullagh94]

I dnt understand how a hole can be made when the laser beam wnts to escape

[MrHairycell]

Wonder if he was thinking about this while he was working on that facebook movie.

[platinumfrost]

I remember the first time i got excited by a photon when it pass me by.. ahh love.

[mahmooddr]

This guy is like the Cool version of Sheldon Cooper!

[nickharvey7]

Interesting vid!

[Shimmer1311]

this guy is amazingly smart

[Shimmer1311]

whoa that is sooo cool

[Theotherone12321]

so he basically said, since we cant tell a difference if coin A is heads or Tails and coin B is the polar but we can tell if they are both heads and both tails that means there is a 66% chance of them both being the same... either he is very stupid or bad at explaining, i'll assume the latter

[M0rris82]

@Theotherone12321 right, the probability of two coins for being in the same state is 50% not 66% as in the video. So, what is the explanation for the laser :) ?

[Ozitiho]

Is the subscribe button broken..?

[tegsar88]

i love this channel

[eel12333]

Yay

[TakesTwoToTango]

I just gained some insight into my Statistical Physics course on the behavior of Bosons. Thank you!

[miauw62]

My cat approves.

[idontknowyourrace]

In reality, it seems that it is just a conservation of energy between the mirrors, and an addition of energy by the means of the energy supply on either end of the mirrors. I don't see why a definition of higher probability of constructive light interference is necessary...

[xXxCandraMoonhowlxXx]

@Stonehawk i don't even know you and i love you. Lol!

[Stonehawk]

WAIT WAIT... so... you're telling me, that the INTELLECTUAL difficulty of not being able to tell photons apart... actually manifests on a *quantum level* and actually represents REALITY? ... GOD I LOVE PHYSICS! <3 It's so deliciously TWISTED! Look at this! It's a loophole! It's a MISTAKE in the programming of the universe and it allows something *amazing* to happen! AGH it's so wonderful it buuurns ;_;

[barcha28]

So lasers work because photons love each other... I'll get an A on my next physiscs exam!

[urcorrect]

so photons exhibit desire and intent... and if you can't tell things apart, there is only a single configuration in which they can differ... wtf

[DraykonVokelda]

@urcorrect I guess it's because with the coin flip, you can have "Coin A is heads and Coin B is tails" or "A is tails and B is heads," whereas with photons you can only have "One is heads and one is tails" since neither can be defined as A or B. Still, the idea that that could directly influence how they behave is... weird. Really weird.

[55445]

1:09 ---> I actually had this idea when I was ten o.o Except mine involved a breakable glass sphere with the light bouncing around inside growing more and more intense until thrown, releasing a flash of light :D

[HelloGreetingsHi]

i love the background music...

[GLANL]

"Lazer" = Light Amplification by Ztimulated Emission of Radiation ?

[iCelinaJoyTV]

So astronauts can see lazer pointers on the moon

[xonktrof1]

/watch?v=hEcuVR2vHwM < what it feels like watching thise

[khoi98]

You have lots of markers

[ZhexProductions]

@nightname6 66+44= 110 66+33=100

[gublaman]

@ZhexProductions nope 66 + 34 = 100. 66+33=100

[cantworkitout]

so... if i place a lightbulb in a room where the walls, floor and glass are all mirrors and turn it on... when i turn the bulb off, will the entire room will remain illuminated?

[piecharthosen]

@cantworkitout It will

Until the mirrors absorb all of the light.

[eladral]

These Minute Physics are too cool.

[SamBCuber]

I was looking at your other videos and found them too complicated so I came to this one beacause I thought it would be easier, I give up...

[noahefenway]

im pretty sure that you suck

[FRgod]

Am i the only one getting mind raped in every single videos?

[robthefirefly]

is a pen light a laser? if so, who or what opens up the other end. not trying to be difficult. my assumption is that a pen light is not a laser beam...

[horatiupalcou]

yeah

[wikkyz4903]

anyone else notice the hearts are minus green?

[manamesjohn]

this tittle says in theory, does this mean that nobody actually knows for sure?

[chrisPWNSall23]

I only watch your videos for your drawings, and If Iv'e noticed something so far. It would be that your markers are faded and you need too get your ass to the store too buy some more markers.

[vlinden1]

photons are asian?



[f00tballfever]

@vlinden1 xD

[est101010]

Dear @minuephysics,

I'm quite confused.

Does your videos show facts or are they theories?

[gublaman]

@est101010 Some of his vids are based on theories some are facts. This one is based on a fact

[gravitar96]

photon peer pressure 

[Chorkie388]

would it cut through somthing?

[talk4smart]

since their's no pink light, is it possible to make a pink laser?

[psycho81212]

@talk4smart well, there's definitely no natural pink light, but if you pass the light through a pink filter, you should theoretically get a pink laser (don't quote me on this, i'm not as smart as minutephysics)

[TheKoeberto]

@talk4smart If you can see pink, there's such thing as pink light. So yes, you can have a pink laser.

[sethboy66]

@TheKoeberto ... There is no such thing as pink light. Pink light is just a fallacy of the human mind. Please do not talk about stuff you are not fully ready to talk about.

[paulievon]

this is confusing

[justabitsinful]

damn those conformist photons!

[thebguffshow]

I love these videos! Keep making more!

[Sonyoooo3]

If only laser can harnest the power of the sun in full strength.

[benlandry5]

How would a strong enough lasers cut through things? Since lasers are made up from a lot of photons. I dont understand how a photon would cut through like a piece of wood?

[lolman2lol]

@benlandry5 the photons generate heat when they hit a surface (that absorbes them) and eventually it burns the surface. :p hope that helps :P

[AndrewjosephFOX]

too fast to really understand

[dying2comment]

now explain how magnets work

[Rochan96]

@dying2comment "effing magnets, how do they work!?"

[WeEatBrainz]

@dying2comment Fuckin magnets. How to they work? 

[MrNeglesh]

@dying2comment Magnets are a material or object that produces a magnetic field. This magnetic field is invisible though, the magnet must be made of iron or something that is magnetic. For a particle to become magnetic you must use the magnet on iron or anything that CAN be magnetic. Than the domains in the iron go one way producing the magnetic field. If the iron is not touched the domains go everywhere and have no pull.

- An 8th grade basic science student..-.-

[dying2comment]

@MrNeglesh orly?

what math class are you in?

[MrNeglesh]

@dying2comment Normal Algebra..Why does it matter?

[dying2comment]

@MrNeglesh ahahaha. GEOMETRY! PWNAGE! did i mention that i too, am also in the 8th grade? and in case you didnt understand, the question which i have asked was rhetorical. maybe youre too basic to understand that.

[piecharthosen]

@dying2comment MFing magnets how do they work?

[2HulluaValkeekoskelt]

@dying2comment Its pretty easy to know how magnets work : D

[lambdaofbacon]

@dying2comment

Angular momentum of electrons/atoms... roughly...

It's voodoo.

[Typho0n86]

"cause they want to be together".... how scientific

[fyesan13]

wait how did he erased the marker in 1:07

[g00hz]

@fyesan13 I think he drew the line backwards and edited it :p

[babscout468]

I recommended you to my 8th grade Pre-Ap science teacher! Keep it up you guys!

[rafevl]

i dont even

[wisin1]

You draw fast.

[Sk8donthateme]

I used to make lasers untill i got an arrow to the kneee

[ARBITEROFTHECOVENANT]

@Sk8donthateme huh. i didnt realise arrow to the knee jokes were still funny. -_-

[StellarArcade]

@ARBITEROFTHECOVENANT Don't blame yourself, i'm sure it's the little kids, catching on.

[andyoflondon]

SLAPPIN DA BASS MAN!

Whoever comes up with your basslines is a genius.

[HrishiKod]

your pen is running out of ink

[BdotGJ]

Whao whao, there really is smart people on youtube?

[CavCavia]

"it's actually quite simple"

...30 sec later mind is blown

[MrFlopface]

this make my dick emit photon

[Olli120]

So how do magnets work?

[GENIUSJastheman]

i thought that this was minute physics not a minute and 42 seconds physics. :(

[MacBrian001]

@GENIUSJastheman this is minutephysics, not oneminutephysics

[BlackwingStorm900]

thumbs up for 9gag

[TheKillla007]

Are you running out of ink? XD

[mablegum]

I love how I'm 12 and I'm the only one in my class who gets this XD

[KoreaRwkz]

I still don't quit understand.

[KoreaRwkz]

@KoreaRwkz *quite

[angelk002]

Time for a new black marker.

[KimmyRose12]

Next explain how magnets work!

[donvadon]

No smart top comments? How can it be?!

[hubbabubbaoouchoizzy]

The music reminded me of Blue's Clues :)

[reinkaos82]

THAT WASN'T ONE MINUTE, I DIDN'T SUBSCRIBE TO THIS

[bryoneill11]

@reinkaos82 morons dont subscribe to this

[fifteentolife]

I bent over to tie my shoe. I came back up and it didn't make any sense.

[K00KieM0nst3R]

best YouTube videos out ther!

[BitchesDoGlitches]

Better love story than twilight.

[artemisfowl90]

@BitchesDoGlitches but minutesphysics is AWESOME - this wasn't qite a description - almoust EVERYTING is better than twilight...

[OrigamiCrane24]

photon love <3 :)

[forzamotorsport1337]

66,6666666(and more 6) + 33,3333333(and more 3) will end up like this =100 :)

[dingwon]

lol. thats what she said."stimulate the others"

[Mysteryguyfail]

66+33= 99

[9o9deathangel9o9]

YOU.ARE.AWESOME!



[Andythemn3]

I wonder how many sheets of paper he uses for each video

[everythingmatthew]

They make physics fun(:

[isthatthenews]

Awesome, I love the simplicity of the layout combined with the informative narrative! Well done!

[longbongotimee]

...why are there so many skyrim fags here. I was hoping for intelligence.

[vobo8998]

@longbongotimee its youtube, never expect intelligent comments on youtube.

I didn't get the part at 0:40, he said you can't tell photons apart from one another, but then he said there is 1 way they can be different and 2 ways they can be the same, so what distinguishes them?

[Aviatorsmith]

@vobo8998 For fundamental particles like photons, there are four quantum numbers that can be associated with them. Basically the energy(1), spin(2) and location(3,4). For photons, the location within the atom and the energy level (for the same molecule) are all the same.

Thus, the only way they can be different is due to the spin. They can either be up/down, up/up or down/down. They can't be down/up as you can only differentiate between the two using spin. Send me a pm if you have questions.

[Nombearable2]

As if he said "Its quite simple actually"

I feel rather thick now :S

[rjamesking]

you need to make a podcast :)

[yeeboom]

am I the only who watches this for the drawings

[InfiniteWhiplash1]

@yeeboom Nah man! I watch it for the drawings too!

[WolfClant]

1:14 photon threesome at the bottom

[freakingrandom12345]

@AtheistOnTheEdge LASER: Light Amplification by Stimulated Emission of Radiation.

[AtheistOnTheEdge]

LASER is actually an acronym. I just thought you could have mentioned that...

[1559BLAHBLAHBLAH]

Guys, turn on the Transcirbe Auto: 'through the evans all that passing light will stimulate them to a mini-van'. XD

[00buck2009]

Thx

[antismatic]

Hmm... Now even *you* have resorted to using anthropomorphism alone to explain natural phenomena?!?  :/

[weswii]

>>---------laser--------------­-> knee

[roberthoxworth]

Imagine two coins... ok forget i fucking said that. moving on.

[fliminthebox]

lasers. powered by love.

[18RiZheng]

I don't get it

[THXFRVNK]

So photons are gay?