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What Is Light?

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We are so used to some things that we stopped wondering about them. Like light. What is light? Some kind of wavy thing, right? Kind of. Short bonus video for the people waiting for new stuff. Music by: https://soundcloud.com/epicmountain/light https://epicmountainmusic.bandcamp.com/track/light www.epic-mountain.com Our Patreon: https://www.patreon.com/Kurzgesagt?ty=h Visit us on reddit/facebook/twitter. You know. Social media stuff. https://www.reddit.com/r/kurzgesagt http://kurzgesagt.org https://www.facebook.com/Kurzgesagt https://twitter.com/Kurz_Gesagt THANKS A LOT TO OUR LOVELY PATRONS FOR SUPPORTING US: Phiroze Dalal, T0T0S, Ryan OHoro, Kay Brinkmann, A La Mode, Marcelo Fernandes de Souza Filho, Vince, Thomas Shiels, Tom Wardrop, Shawn Marincas, Pontus Attåsen, Paul, Horacio Medina, Jim Yang, Arnav Guleria, Clemens, Robert McKone, Tahseen Mushtaque, Todd Binkley, Jochen, Vahur S, Matthew von der Ahe, Thomas Russell, Erick, Vivek Kotecha, Nils Caspar, Holger Fassel, Artur Szczypta, Jeff Fellows, Daniel Duffee, Konstantin Shabashov, Jackson R Hanna, Tim drake, Pascal de Reuck, Mike Galles, ByeongWook Lee, Guus Ketelings, Franko Papić, Thalia, Narat Suchartsunthorn, Lorenz Zahn, Brian Aparicio, Jörg Vogelsang, Rashed Ali, Darwin Ranzone, Tyler Thornton, Bernat Unanue, David Pfister, Ash Patel, Han Saini, Ute Moll, Vrm Vee Are Em, Ioanna Bischinioti, Jenny Zhou, Vince Babbra, Dan Cortes, Matt K What is light? Help us caption & translate this video! http://www.youtube.com/timedtext_cs_panel?c=UCsXVk37bltHxD1rDPwtNM8Q&tab=2
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Текстовые комментарии (5670)
Koyote Mark (8 часов назад)
BULLSHIT. LIGHT SPEED IS NOT CONSTANT., AND HAS BEEN SPEDUP IN A LAB, AS WELL AS SLOWING TO ONE MILE PER HR WITH HARDLY ANY ENERGY LOSS........LOOK IT UP
Jarrett Clopton (18 часов назад)
0:00 Read title
Alfonso Leon (2 дня назад)
Does gravity affects two objects instantaneously? i mean faster than c?
boimyboixd (2 дня назад)
Is gamma speed. Faster then light?
TheBlackestKey (4 дня назад)
If anyone ever says "don't believe everything you read on the internet" this is what Ishow them.
hafiz_ridzuan harun (5 дней назад)
Kurzgesagt: What is light Me: OMG YOU DON'T KNOW WHAT IS LIGHT OMG!!!!
Jin Kim (5 дней назад)
I think light behaves as the wave-particle duality, because it travels outside of our observable time frame. Due to physical limitations, observers can only observe things that have already happened. By the time they detect something, it has already happened in the past. Light, on the other hand, moves so fast that it's always at the present moment as things happen in the linear time and physical space. Basically, light will always move slightly faster than a physical observation, so it seems to exist all over the place as a wave of probabilities until it has finally been observed, at which point the light has already become a part of the past(time frame we can observe) as a particle, or an information of a fixed position of light that has been observed in this particular space-time. Looking at it that way, light perhaps exists at the borderline between matter with mass and non-matter. C, the speed of light, would most likely be the maximum frame rate of the material universe, because it exists right on the speed limit. Anything slower than light would produce mass(a fixed position in space-time which is perhaps what creates gravity), and anything faster would probably leave our linear time frame and become unobservable by direct physical means. Meaning light would appear as a wave of probabilities the moment before we detect it due to light being outside of our fixed space-time, and it would appear as a particle after we do observe it and it becomes a part of the past. But it only appears as wave-particle from our linear time perspective for both cases. It is quite possible that light exists as some other state above the C barrier, but we're only able to see it as light in the physical universe, the same way 2D beings would only be able to see flat shapes when looking at 3D beings.
Arsh kushwaha (6 дней назад)
Where are 4:02 these videos?
Flying Gutchman (7 дней назад)
I wish all school lessons were taught in this format
Bagas Pratsya (7 дней назад)
Haaaaaaaaa it has no mass ?
jame4830 jame4830 (7 дней назад)
WHAT IS LIGHT? BABY DON'T HURT ME DON'T HURT ME NO MORE
Tobias Taylor (9 дней назад)
Please sub to the smart man!
Tobias Taylor (9 дней назад)
I am so smart now!
Karen aka sapphire fan Miller (9 дней назад)
So in lights eyes the speed maters
Karen aka sapphire fan Miller (9 дней назад)
In a nut shel light is light that is light that’s has light in side of it >:}
Joe Cat (10 дней назад)
very interesting... slow down
Jordan Van de Kerckhove (10 дней назад)
but if everything that doesnt have a mass moves at C why is sound slower then light or does sound have a mass?
ofek10 (2 дня назад)
Sound emerges from the impacts of particles with mass, which are slower than light
Sebastian Gruber (11 дней назад)
Lol Light is compared to the Universe VEEEEERRRRYYYY slow
Man of the Blood River (11 дней назад)
2:02 who's good move?
Don Focus (12 дней назад)
I didn't understand any of this shit man !!!
Derrick Oakes (13 дней назад)
The beginning of time... the infinitesimal moment from which all that ever was, and all that will ever be. This moment was the instant in which the very notion of consciousness itself, was perceived and brought into existence; of its very own accord. This epiphany is it itself so beautiful and so perfect that words cannot begin to describe how eternal in its beauty it actually is. It is lasting and eternal in its formation and it will remain this way always and eternally. Consciousness is in itself the Universe. We are but a part of it, for we are part of it. Both physically, emotionally, abstractly, emotionally. Our human body is a manifestation of the Universe itself; a form with infinite possibilities. Everything that we experience will never be lost, but instead will remain with each other and all of the Universe for all time. We experience together. We are together. We feel together. We suffer together. We love together. We will always be with each other. This universe is our home, it is our creation. For consciousness is our creation. We are the Universe. The very notions that have perplexed us for millennia: the creation of the Universe.... what is consciousness...,and the meaning of our existence. These notions are simply synonymous. The universe, consciousness, and yourself are the same. We are one and the same. Eternally. I leave you with this thought.... The moment the Universe was created was NOT the first time that the we opened our eyes.... but rather the moment we REMEMBERED to open our eyes. God, is the means in which we shall never forget.
Wassup Yo (13 дней назад)
So can “photons” be the size of buildings since the waves can be that size
ofek10 (2 дня назад)
Of course. In radio frequency they really are that large.
Conundrum (14 дней назад)
Baby don't hurt me.
Ze Pooty (14 дней назад)
Baby dont hurt me
co xe (17 дней назад)
*Light is comming from this toxic comment.*
Fabian Alejandro (19 дней назад)
Wrong data! The speed of light is about 299.000 km/s... not 299.000 m/s! In fact, light can turn around the earth 7 times in less than a second!
Shiroplayer 000 (19 дней назад)
Ok 299.792.458 m/s = 299.792,458 km/s almost 300.000 :c what's wrong
Fabian Alejandro (19 дней назад)
Wrong!
Shiroplayer 000 (19 дней назад)
299.792.458 m/s not km
Jimmy Jewtron (23 дня назад)
Well that’s eazy light is light
Himanshu P (24 дня назад)
00:43 Illuminati XDD
Shiroplayer 000 (21 день назад)
Lol , so kurzgesagt So kurzgesagt joined the group xD
MaSs1V31 (26 дней назад)
Baby dont hurt me, dont hurt me, no more....
Garrus Curiosity (27 дней назад)
Why did you say that its not a wave–particle duality?
Chyrre (28 дней назад)
Baby don't hurt me...
Drew Ackerman (28 дней назад)
What is the speed of heat?
icey gaming (28 дней назад)
What is light ITS FAST AS FUCK BOIIII
InGaming pc (30 дней назад)
tron
jayanthi sai (1 месяц назад)
Anyone saw the statement in the down right corner in the video at 1:33
amanda shenay (1 месяц назад)
So when my dog drops a deuce ...and her bunghole drops some mass plus friction,why doesn't her terds glow?
amanda shenay (1 месяц назад)
AllSO,do ants Fart?...Muthbusters??!!...If You Please.....
coletrain411 (1 месяц назад)
baby don't hurt me, no more
Salvatore Maximus (1 месяц назад)
Our eyes didn't evolved, they were created by Lord Jesus Himself, praise the Lord....
Yusri Amilkassim (1 месяц назад)
I have been watch this already.. this my second time been here...
Cameron Smiley (1 месяц назад)
BABY DONT HURT ME DONT HURT ME NO MORE
Gracie Doss (1 месяц назад)
how do you say your name?
Sockpuppett 15 (1 месяц назад)
What is light baby don’t hurt me don’t hurt me no more
Rafael Akapohi (1 месяц назад)
Answer in 0:00
Fizz (1 месяц назад)
L - I I - don't G - know H - what T - is it you dipshit
Fizz (30 дней назад)
lol
Fizz26 ! (30 дней назад)
And I am your 26th, version.
Gspec 5 (1 месяц назад)
Fantastic vids, my only hangup is the fact that eyes are mentioned as "evolved". Probability alone throws that concept out the window but a creature doesn't know that it needs an eye and cannot determine how beneficial an additional feature is. Even mutations have limited benefits. Any rational deep thinker would realize how complex the eye is and would see how improbable small accurate mutations successfully built a working eye. Some organisms like worms have eyes and some don't, some sea creatures have eyes but are totally blind, these phenomena don't have to be explained but a simple reflection on how absurd it is to say that we evolved eyes would get rid of 90% of the fairy tales science has been feeding us since charles darwin.
Lil Gat (1 месяц назад)
Would it be possible to ride the expansion of the universe like a wave since the expansion is going faster than the speed of light?
Sebas Prat (1 месяц назад)
heres an interesting question, one i came up with when i played overwatch character symmetra-if light is a particle can it be slowed down and compressed to create physical matter?
ofek10 (1 месяц назад)
No, don't think of particles of light at little balls of light - the label "particle" is misleading. When physicists say "particle" they mean an energy excitation in a field. Meaning, the energy of a light wave is some multiple of a basic energy in a light wave, that is a 'particle'.
Nucularburrito2 (1 месяц назад)
What is light? A feather!
Matej Novosad (1 месяц назад)
Those animation skills
Garry Ghastopilous (1 месяц назад)
BABY DONT HURT ME DONT HURT ME NO MORE
LØve Music (1 месяц назад)
When he says our universe is just built this way does he mean thay something built this universe? Since everything that is built has someone or something building it
Anderson 63 Scooper (1 месяц назад)
Does anyone else see hundreds of Stars of David in this video?
Karan Kambli (1 месяц назад)
Science is incredible !!!💖
4l3k2 2k1ll (1 месяц назад)
*THIS IMAGE IS A LIE*
Benson Low (1 месяц назад)
COLORBLIND
wig (1 месяц назад)
light is light
Ay Dios Mio (1 месяц назад)
What is light? Baby don't hurt me, don't hurt me, no more
Baron Lin (1 месяц назад)
you said zero because you have an around head
Baron Lin (1 месяц назад)
zero is your dick
Baron Lin (1 месяц назад)
This video sound like fucking retarted bullshit
Baron Lin (1 месяц назад)
And it cames from nothing????? Sounds fuck up
Baron Lin (1 месяц назад)
zero because your brain is tooo easy
Baron Lin (1 месяц назад)
m is not zero
Baron Lin (1 месяц назад)
the number 0 sounds retarded
Teeniernewt321 Jake (1 месяц назад)
Doesn’t the universe travel faster than the speed of light?
addar yassine (1 месяц назад)
the animation is so nice, and the voice over very good, I love your videos keep it up !
PotatoMC (1 месяц назад)
Baby don't hurt me! Don't hurt me! No more!
killer meme star (1 месяц назад)
Your favorite gamer here why don't your subscribe to me and this channel
wentaas (1 месяц назад)
What’s the colour of the light that we don’t see and what’s colour anyway
wentaas (1 месяц назад)
Why do we see objects like they had a different colour when there wet/hot/cold/dry
Sami Sabori (1 месяц назад)
What is love ?
stav12212 (1 месяц назад)
WHAT IS LIGHT? BABY DONT SPEED ME DONT SPEED ME NO MORE.
AshCrash (1 месяц назад)
But tachyons are faster than speed of light
Brian Duzick (1 месяц назад)
Jesus Christ is the Light of the world
Eral Koil (1 месяц назад)
What is light? Baby don’t hurt me. Don’t hurt me. No more.
Future Dex (1 месяц назад)
Kurgersagt means In Short
Gumball (1 месяц назад)
I thought it said “What is Ligma”
roblox reviews gamer (1 месяц назад)
The dark side what is the light side called?? Oh wait.
Lando Calrissian (1 месяц назад)
Baby dont hurt me, dont hurt me, no more
Lincoln Osiris (1 месяц назад)
WHAT IS LIGHT !!! BABY DON'T HURT ME DON'T HURT ME NO MORE
frederick ang (1 месяц назад)
Lincoln Osiris what
Benjamin Kingston (1 месяц назад)
Well, it's definitely not a nautilus
Ian Ludwig (1 месяц назад)
quality video; subbed
Berk erdemoğlu (1 месяц назад)
Vsauce: But what is light? -curious music starts-
T3rm3nator (1 месяц назад)
Our God created an intelligent design.
All In (1 месяц назад)
The rules have been made, our knowledge isn’t grasped that yet...
Fernando Alonso (1 месяц назад)
I couldn't keep up
Frans Jacob (1 месяц назад)
light more like dies from heart attack at end of despacito note 21
Vanna6345 (1 месяц назад)
What makes Light move ? ? :0|
ofek10 (1 месяц назад)
Well, why do you assume the perturbation remains constant? It doesn't. It changes in time, and the strength/intensity changes in time as well. Does a perturbation in the height of water in a lake stay constant in time? No, it spreads out or travels from one side to another (or more freaky stuff waves do)
KLJF (1 месяц назад)
ofek10 . if light is just a perturbation through the electromagnetic field then the field would need to be a constant strength/intensity for the perturbation to remain constant , you already said it varies
ofek10 (1 месяц назад)
Why shouldn't the traveling velocity be constant? Also, sound is a wave in the air density - the air density isn't constant, it also oscillates (your vocal cords vibrate, which push back and forth the air around them, making it more and less dense, and that perturbation travels - that is sound)
KLJF (1 месяц назад)
ofek10 I thought you were saying that light is a wave in the electromagnetic field and not a thing in of itself like sound traveling through a medium ? if so then it should not be constant .
ofek10 (1 месяц назад)
Sorry, I don't understand your conclusion. Can you please elaborate?
Shemsy (1 месяц назад)
They only travel at c in a vacuum
Nitesh Swarnakar (1 месяц назад)
Sir which software do you use to make these videos? Is it PowerPoint?
Guillaume Hertzog (1 месяц назад)
I'm french, and I love it ! (I have a message from "Markiplier" , he said he love this channel ! Deal with it , good-bye <3)
Артемий Бондаренко (2 месяца назад)
The speed of light is C. That is why you are able to C it. Badum-tss
ayush daga (2 месяца назад)
we say that the light coming from a star is like billions of light years away, right? But it also means that we are seeing the past. Isn't it?
Mattthew Miller (2 месяца назад)
nutshellllllllll
Mattthew Miller (2 месяца назад)
like my comment
Mattthew Miller (2 месяца назад)
nice
중장군 (2 месяца назад)
yes!!!!1 your!!!!!!mother!!!1
Røhît Pâūł (2 месяца назад)
So then how is there light energy since you said that photons cannot be split but created and destroyed, considering the fact that photon are part of light rays
ofek10 (1 месяц назад)
Can you clarify the question?
Staniel Petrov (2 месяца назад)
If the sound is the speed of which sound waves propagate trough air, then the light speed is the SPACE wave propagation speed. Which means that the SPACE itself has a measurable density. :)
KLJF (1 месяц назад)
dark matter ?
Asrat Mengesha (2 месяца назад)
What Is Light?" what is up dumbass? Light is destroyed after you turn of the light. Photon, is fictitious word, therefore. Radio waves and light have no connection. And remember: Electrons do not exist because atoms do not exist. Light does not travel. If light were traveling then there would be no darkness any where. Light does not come from farthest places to the earth,. Why? because light is local. Turn on your out door light it illuminates your out door area, it does not travel any where. Your myths is very surprising when you say that light travels. If light is traveling and reaching your eyes from the farthest "galaxies" did you forget that you are saying light passes through all the darkness(becoming no-light), then it becomes light when it reaches my/your eye??? That is Big lie, buddy. Impossible. Most importantly light is local and the previous light is destroyed as new one is being given off. The evidence is: when you turn of light then all the light is destroyed (there is no light travel, there is no light Journey), Buddy.

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