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What Is Light?

Оценок: 87791 | Просмотров: 4261930
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 (5489)
Anime Zone (9 часов назад)
well technically the universe doesn't have a speed limit, only special relativity states that. Now general relativity states that the further you move from the source the faster you get. You just cant move faster than C if you're close to something. That's why the universe is expanding faster than light, allegedly
Ross Goosen (21 час назад)
Sirius B! Sirius Black!
Firstname Lastname (1 день назад)
I'm left with more questions.
Ultra Instinct Xeno Bardock (2 дня назад)
What is light? Here's the real answer. Light is a coaxial circuit. < Youtube search it. Also Google "Uncovering the missing Secrets of Magnetism". You will understand nothing about the Universe if you don't understand anything in this book.
anth7rax (3 дня назад)
well sthe question is. if a photon is massless then how it can get affected by a blackhole?
Ultra Instinct Xeno Bardock (2 дня назад)
Forget about Einsteins theory of relativity, its at least 80% wrong. Even Nikola Tesla rejected relativity which should be a huge red flag to anyone believing general relativity. Space cannot be curved. Space does not have properties according to Nikola Tesla. Saying space can curve is like saying shadow is something that does something. Space is not a thing. Google "Uncovering the missing Secrets of Magnetism" very important book you will ever read. All the brilliant minds existed Eric Dollard, Oliver Heaviside, Maxwell, Stienmetz, Nikola Tesla, Halton Arp, etc. reject most mainstream space science including quantum physics and general relativity and also mainstream gravity theory. Eric Dollard is alive btw. Check his videos. And check ThunderboltsProject and Theoria Apophasis channel. Forget about most mainstream space science and gravity model of the universe, most of it is wrong and way off and insult to our intelligence. Also check Halton Arp's videos. Spend few years researching and you will throw quantum physics, general relativity, and most other mainstream space science nonsense into trash.
anth7rax (2 дня назад)
the ferrocell part kinda makes sense but the first part of your reply is actually meaningless. according to Einsteins theory of relativity it does not matter if it has mass or not it will still be affected by gravity considering that gravity is simply just a distortion from something that has mass. So when an object has more mass the more it curves space time the more gravity there is acting. And a black hole creates a huge curve in space time which light cannot escape from. so ferrocell is cool but ill go with einstein
Ultra Instinct Xeno Bardock (2 дня назад)
There is no such thing as photon. Youtube search "light coaxial circuit" that's what light actually is. Compressions in light are misinterpreted as photons. Also google image "ferrocell" That's what mainstream cosmologists are observing and misinterpreting as black hole.
coconutcore (3 дня назад)
Does the light from your headlights travel at C+the speed of the car, compared to the rest of the universe, or does it travel at C compared to the universe at all times. If the car were to move at C, would it give off any light? And what if a car travelling at C compared to Earth, which is treveling in the oposite direction, turned on its headlights? Would the light travel away from the car at the speed of earth? Basically, does the light travel away faster from one side of a moving candle than from the opposite side?
Lauchsuppe Deluxe (4 дня назад)
What is love?
Twinrehz (5 дней назад)
Waves travel at sea. Who says physicists don't have a sense of humour.
S C (5 дней назад)
Who’s watching in 2018
Victor Elliott (5 дней назад)
Do part 2
Maximus Su (6 дней назад)
Light is an electromagnetic wave as it can be polarised in which the magnetic field and electric field oscillate in phase and are perpendicular to each other. A varying magnetic field induces a varying electric field. Thus, the electric field gains a phase difference of phi/2 than magnetic field. Electromagnetic waves can travel through vacuum, has velocity equal to c=3.0×10'8 ,produced by the electric charge oscillation or the transition of electron from higher energy level to a lower energy level.
Nabbit Go home (7 дней назад)
I’m here for the nautilus on the picture in this video.
JonathanBlue (8 дней назад)
After almost three years, still no video about traveling at the speed of light, the twin paradox, or "quantum stuff"... Nevertheless, I love this channel!
Potato ;3 (9 дней назад)
what is love!
Bryce Sabin (9 дней назад)
What is light!? Baby don’t hurt me, don’t hurt me, no more.
Memertarian (10 дней назад)
"Light is the connection between ass and the universe"
Ibrahim Sorie Koroma (10 дней назад)
Greatest vid yet love this guys voice
Tanks Mk. 5 (13 дней назад)
I was looking for a song by Twin Existence and got here
Ivan Bustelo (13 дней назад)
But if a photon is the smallest amoumt of energy that can be transported why are there photons that have different amounts of energy? Shouldn't they be all the same?
Vly2915 (13 дней назад)
Instructing, Well explained and So Well Represented. Why isn't this used in schools?
Joel Welinder (14 дней назад)
A few simple calculations later and I now know that gamma radiation does 30000000000000000000 waves every second.
Владимир Буборнев (14 дней назад)
You`ve mentioned that light is the same as any other electromagnetic field, but how this combines with photon not having mass while electron having it?...
Franky (15 дней назад)
Dark'nt
josefina derpich (17 дней назад)
make a video about gravity and relativity theory!! pleaaaase
Jack (19 дней назад)
This image is a lie
Jack (19 дней назад)
_WHAT DA_
Lawrenzo Green (20 дней назад)
Love you guys.
Yoshi Frog (20 дней назад)
We had the big bang but imagine our reality in the future ends and the big bang begins and starts are reality all over again due to the string theory.
Martin Ivers (22 дня назад)
Visible light is energetic enough to reversebly change receptor molecules but not destroy them.
Cally. (23 дня назад)
We didn't evolve eyes. God created us with them.
Anthony-Phillip Cornejo (22 дня назад)
k
Julien Décarie (23 дня назад)
The photons are the energy in the frequance (hertz)
Julien Décarie (23 дня назад)
Light is
Connerspy (24 дня назад)
For some reason my teacher used this for science class and everyone thought you were switching languages mid sentence constantly 😂
Ila Violet (25 дней назад)
Light? The visible sign of the invisible light! -Henry Green
shyvha beauregard (25 дней назад)
good thumbnail.
Real Basic Drawings (26 дней назад)
Why C? Because: d://Universe/Dir/SimRules/Massless_Speed {value}(max):299792458(unit:meters){Dir/Distance} That's why.
Vetrex1 Channel (27 дней назад)
Man, your videos make my head hurt !
Giovanni Andreani (27 дней назад)
Very well done, guys!
Halyxon (28 дней назад)
But the real question is... WHAT IS LOVE???? BABY DON'T HURT ME
No T4co For You (1 месяц назад)
Does he not sound like Thoughty2?
Percy Merit (1 месяц назад)
Baby dont hurt me
Percy Merit (1 месяц назад)
Well fuck me
Percy Merit (1 месяц назад)
Uuuh shit someone already made that joke
SoloYolo (1 месяц назад)
But black holes have strong gravity and you need to be faster than light to escape it so isnt black hole suction the fastes ... help pls
Sany Suny (1 месяц назад)
how do we know that C ist the fastest speed possible? What if all humans were blind and didn't even know about light, would we think something else is the fastest speed? Maybe there is something that we dont even know about right now. (There might be a mathematical proof to this, but I dont know about that)
Wade Hibbard (1 месяц назад)
Wouldn't a wormhole be a faster than the speed of light?
HetNe$$ (1 месяц назад)
So what speeds up light to the speed of C? What makes it to apply this speed at the very beginning?
MrDubstep Games (1 месяц назад)
Kurzgesagt vs life noggin. Comment for Kurzgesagt Like for life noggin. I'm not trying to get likes
Anthony-Phillip Cornejo (22 дня назад)
MrDubstep Games if you weren’t trying to get likes you could have just said “comment who you like more” and gotten the same result
imperator Sklek Hrkljuš (1 месяц назад)
What point is there comparing the "size" of a gamma ray to an atom? Someone please clarify, RAYS do not exist as matter but as periodic, deterministic oscillations of a phenomenon.
Stelissa (1 месяц назад)
Far too many concepts squashed into the video, I actually lost count. The level of prerequisite knowledge is way too high for most learners.
THE PHOTOROOK (1 месяц назад)
Omg....youre like a GOD
Abdullah Sonki (1 месяц назад)
So if light travels though air it's slower because of the particles in the way?
The Child in white shoes (1 месяц назад)
Imagination is faster than light ..
Deluxepter (1 месяц назад)
I usually trust these videos... But him saying this image is a lie in the bottom right corner makes me lose my faith.
RedYellow Blue (1 месяц назад)
thanks obama
Sabyasachi Datta (1 месяц назад)
Light (photon) is not a particle, but we imagine it as a particle to solve mathematical problems related to it.
playlists (1 месяц назад)
anyone got any resources on explaining photons to kids?
Angie Mango (1 месяц назад)
Uhuh... Okay then
* reinbo * (1 месяц назад)
*BABY DON'T HURT ME, DON'T HURT ME NO MORE!!!!*
Bob Smith (1 месяц назад)
What is love?
Dina Wahdan Elbaaly (1 месяц назад)
it is DdEEEEEWHTDBBJE
Monody (1 месяц назад)
I wonder if C is a 1:1 ratio of space to time… Not sure how we might go about proving that without somehow measuring a single elementary unit of each, though.
Emmey Draws (1 месяц назад)
My teachers showed us this in science and I was the only one who actually understood the whole video XD it was fun to see them dumbstruck
JashTrash (1 месяц назад)
The animation on these videos are pretty trippy.
Yun Wen (1 месяц назад)
This image is a lie
Venom C (1 месяц назад)
I will always support u for ur mind blowing videos....... Keep doing it...
Marisa Andrikanich (1 месяц назад)
hello world
Marisa Andrikanich (1 месяц назад)
sanakj
Сергей Шульга (1 месяц назад)
The speed of light is 299,792 km of traveling.
Josh Foster (1 месяц назад)
What about wave/particle duality? Amazing video as always
Dũng Nguyễn Tiến (1 месяц назад)
VN
Jonas Kovamees (1 месяц назад)
Oh hey! You used the Bohr model!
Saphire Tiger (1 месяц назад)
I wish YouTube had the sponsor feature on kurzgesagt I would have done BTW it's new it's coming in somete
Saphire Tiger (1 месяц назад)
I feel you must have exxaxarate on the higher and lower energy levels
RasQ Gible (1 месяц назад)
Light - The ting u use to play fortnite
BlueBerry Puff Animationz (1 месяц назад)
Light is light
xxg00dviruzxx (1 месяц назад)
why not try making a a video about biomimicry?
rootbeergoat (1 месяц назад)
It says a lot to me that the quality of your videos is so incredible that I can look at this video, still a great video, and go "wow this isn't go good." It's just because y'all do so well. Keep it up and thank you so much for what you do!
ChocolateChip (1 месяц назад)
What is light? Baby don't hurt me! Don't hurt me! No more! Sorry I had to :'D
Tim Perks (1 месяц назад)
VLATKA JERAS ARMIJA
Lazigo Guyman (1 месяц назад)
The only question I had for this video isn't why the speed of light is the fastest possible speed and then he just changes the question to a different one that's completely unrelated. Why?
محمد العمري (1 месяц назад)
Second: If a photons have no mass then why do black holes consume light?
محمد العمري (1 месяц назад)
First: Can we say that to travel with 300 000 km/s is something only a massless particle can do? Like photons
philip chan (1 месяц назад)
What is light? Light
Spencer Dean (1 месяц назад)
Yes I love it. It help with with my problems.
Christopher Kenshin Manong (1 месяц назад)
It would be amazing if all wifis can be as fast as C '-'
ofek10 (1 месяц назад)
Technically, wifi is a type of microwave radiation and it does travel at c.
Ivana Ivana (1 месяц назад)
i can make things that are faster than light... Me: *records a video of turning on a lamp and makes the video faster*
APOPHIS GAMING (1 месяц назад)
The fastest speed travel from point a to b is not c (light speed) , it is a wrinkle in space
Sabina Rios (1 месяц назад)
cool rele cool😊😁
Jacob mars Vlogs (1 месяц назад)
I learn more things here than I do at school
Diggi Worme (1 месяц назад)
Jacob mars Vlogs ifuck uaiefiwmerf
The7thTurtle (2 месяца назад)
Light is a thing thay glows,dumb things get atttrafted to light *gets attracted to light*
Jeremy Lopez (2 месяца назад)
My god my head hurts
Kaan Aybek (2 месяца назад)
😅😅😅
Kaan Aybek (2 месяца назад)
Light is light
HenryLord (2 месяца назад)
Wait, if the higher the frequency, the more energy and the smaller then the easiest light to create is the biggest one?
Krieg Psycho (2 месяца назад)
If you look at a star.. you’re actually looking at it in its past
Elijah Atyuhm (2 месяца назад)
Here's a thought and question for you... Does light truly "disappear"? Light can travel so distant that we cannot observe it, however; the photons still exists. One rule of this universe (to my understanding is still true) matter cannot be created or destroyed, only transformed. Therefore photons, transform in and out of the observable light spectrum within the constant expansion of the universe. So light does not die, only changes into a form we cannot currently see. If this is the case, would all that exists truly one day "disappear" or be destroyed? Or change into a form we currently cannot observe?
Azra Kaya (2 месяца назад)
which program do u use?
Majic8ball (2 месяца назад)
You wouldn't exist,and you could travel all around the earth 7 times in 1 second.
Raavi Mehta (2 месяца назад)
Please make a video on special relativity!!
trinralov GD (2 месяца назад)
Dimrain47 make a song at the speed of light
trinralov GD (2 месяца назад)
This image is a lie

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