Quantum Mechanics: The Dual Nature of Light

[Riplure]

light is neither a wave nor particle, its just light

[xIndca]

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[loweyesguy831]

life comes in little particals

[91TheKW91]

i wish this guy was my teacher...

[datzfast]

hasnt this theroy been debunked im sure it has , Bill Gaede the double slit experiment debunked this theory. why do they still teach this?

[obviousfakename7]

@datzfast: LOL. If by "this theory" you mean Quantum Mechanics, then no, it hasn't been debunked. Neither has the Wave-Particle duality of light and other small particles. The results of the double slit experiment haven't been debunked either. So what are you talking about?

[datzfast]

@obviousfakename7 your a teacher?

[jakeZaks2012]

@obviousfakename7, quantum electrodynamics (QED) regards light as a particle, and the theory explains ALL of light's properties and effects in terms of moving photons.

When you try to detect light, you ONLY ever detect a particle, NEVER a wave. So, light is a particle.

"QED" by Richard Feynman for a non-technical explanation. Also, Google "vega" and "feynman" for lectures on this.

[detibry]

@jakeZaks2012 then explain the interference patterns observed from a simple interferometer or double slit experiment. you cant just say its one or the other, its both. Even QED uses waves dynamics in its description.

[mongoose100989]

sound is an oscillation which needs a medium hrogh wich to trvaeol suc as air or water wheras light can propagate through spce

[socratus1]

Quantum theory is about Quantum of Light Why? Only the speed of Light Quantum have an absolute quantity c=1 No other particle can have the speed c = 1 So, we have two incommensurable quantities and I was taught at school that two incommensurable quantities cannot be compared To compare them is similar to decision of a problem: what will be if a whale attacks an elephant? They never meet and fight in the same frame of reference So: QT explains behavior of Light Quanta

[Bludgeonier]

Hundreds of thousands of non-photon low mass particles move at the speed of light. A few of them are even heavier than light. Everything in the EM spectrum moves at C, which does not =1, it equals 286,000 miles per second. Quantum theory explains very little about photon's "spooky action". Even when light only passes through one slit, the interferance patern remanes .QT is primerily used to describe objects between the size of an atom, and the size of photons, i.e. muons, spuons, nuetrinoes etc.

[mikeroephonics]

@Bludgeonier (Approximately) 186,000 miles per second.

[Bludgeonier]

yea, typo!

[obviousfakename7]

@Bludgeonier: When there is only one slit, there is no interference pattern. I think you mean "even when only one photon passes through the slits at a time, the interference pattern forms".

[sidewaysfcs0718]

gluons and gravitons move at c also ...gravitons are still theoretical tho

[Bassotronics]

Photons are like a surfer. A surfer relies on water which is made of "Particles" and also relies on "Waves" so the surfer can move. Without any of the two the Photon "Surfer" cannot exist. There is my comment about if light is particle or wave.

[egarcianyc]

Wanda4Decent values...your ignorance is disturbing. first of all this is not a discussion about God...but if you want it to be what kind of insanity is taking away god from our money? put god on our money which represents such greed and ills that are so opposite to what god supposedly represents? think before you speak...your ignorance blinds you from not being able to see god in science and that is sad. get your head of the bible and see god in action in nature.

[smagmatits]

When I read that comment by Wanda, I was reminded of the quote: "if it weren't for christianity, Columbus may have landed on the moon." It is not comprehendable to me how someone can be so ignorant. What do we do about it? Ignore it I guess, and ensure people like that are never able to hold any power what so ever in our society. Cheers buddy.

[Wanda4DecentValues]

All this "lite dual nature" is a bunch of lies, made up by liberal scientists in order to discredit the Bible, Jesus, and to remove God from our money. The speed of lite makes elictricity?!? Lite and elictricity IS TWO DIFFERENT THINGS! How can lite make elictricy? Lite is a wave and dots at the same times?!?! LITE IS DOTS, YOU IDIETS! Liberals are realy stupid, believing this nonsinse.

[VenkmanAndSpengler]

correction Idiot non plural and spelt with an o not diet and nonsence as in I get the sence you were beatin(slang) with a bible.God shouldnt be on money because money=greed and greed=sin I thought you knew that?And why not look up what light and electricity is made up of yourself before you go crazy biblical.

[VenkmanAndSpengler]

Wait wait what was that?....tssss burn.

[cheeseburgerwalrus2]

anybody want to bet that wanda is a conservative? wanda isn't a conservative, nor a liberal. just an idiot.

[SophistAtheist]

lol deluded christians morons like you are sad

[smagmatits]

Did you drop out of school in grade 4 or what? LMFAO, you can't spell, you referred to light as "dots" and no one on earth even knows what electricity is. People like you just hold our race back, what's wrong with people trying to explain the world we live in? It's better than getting everything from a book written 2000 yrs ago, that was created to control the masses. You're a joke. Kill yourself and do the world a favour. PS there won't be a magic wizard named Jesus waiting for you when u die.

[mikeroephonics]

Obvious troll is obvious.

[Subutubiata]

On principle rational teachers should now wave huge fucking sticks around in lectures. This is physics, not Quranic studies!

[thebluewindowsoul]

bouncing light off of metal to create energy is brilliant! what placing a crystal "type"(diamond,saphire,myabe amethyste)shell around a chunk of metal to reflect blues and purples on to it I'm just wondering if it would create a way of magnifying the suns light to produce energy well it's late crazy thought lay to rest now

[Devilboy668]

holy shit

[JeChFoLi09]

O YES! this video was a blessing! cuz i have a test in Chem tomorrow n we r learining this n i now understand what my teacher was saying.

[randompast]

Thanks... I needed to see someone connect wave nature, particle nature again ; )

[Sandett]

Plz teach harder things. They are easy to me. I want to learn E8 theory. :D

[LemonStamp]

Less arrogance generally leads to higher learning.

[Sandett]

LOL,why does someone say this is easy to himself and then you say he is arrogant?

LOL,it's so easy to be arrogant to you,huh?

You are freaking weird. :P

[LemonStamp]

Well at least I learned how to write in English.

[Sandett]

Well,at least I know you are blind :P

[LemonStamp]

BAHAHA

Good one.

[natemayfield]

Great teaching!

[fleiteh]

hmm lectures should be recorded like you have done (only with a better camera). This would be a great help for anyone who wants to learn and can't afford, or just aren't able for any reason, to go to college.

[MartinMATOMartin]

Thakns for this video. it helped me a lot! I'm eternally grateful ;)