What can Schrödinger's cat teach us about quantum mechanics? - Josh Samani

View full lesson: ed.ted.com/lessons/what-can-sc...
The classical physics that we encounter in our everyday, macroscopic world is very different from the quantum physics that governs systems on a much smaller scale (like atoms). One great example of quantum physics’ weirdness can be shown in the Schrödinger's cat thought experiment. Josh Samani walks us through this experiment in quantum entanglement.
Lesson by Josh Samani, animation by Dan Pinto.

Пікірлер: 2 700

  • @brandough7
    @brandough73 жыл бұрын

    Schrodinger: So do you want to live or die? Cat: *Yesn't*

  • @humeras3359

    @humeras3359

    3 жыл бұрын

    Lol😂

  • @grass5697

    @grass5697

    3 жыл бұрын

    b o t h

  • @blazingrockstar7529

    @blazingrockstar7529

    3 жыл бұрын

    Loollll

  • @sillypotato53

    @sillypotato53

    3 жыл бұрын

    I used this word at my "convent school", they kicked me out for 2 periods straight

  • @sillypotato53

    @sillypotato53

    3 жыл бұрын

    @₿ΣΛƬƧ yupn't

  • @marveljames4256
    @marveljames42565 жыл бұрын

    *No cats were killed during this video* however, *Cats were killed during this video*

  • @Ridhi259

    @Ridhi259

    5 жыл бұрын

    +Marvel James 😂😂 gosh😆😆😆

  • @furn2313

    @furn2313

    5 жыл бұрын

    Schrödinger's murder

  • @willg.8935

    @willg.8935

    5 жыл бұрын

    Lol

  • @twentyninedoesnotlastforev5455

    @twentyninedoesnotlastforev5455

    5 жыл бұрын

    Well yes, but actually no

  • @aedenthegreatyt

    @aedenthegreatyt

    5 жыл бұрын

    @@twentyninedoesnotlastforev5455 and vice versa

  • @willg.8935
    @willg.89355 жыл бұрын

    Schrödinger's cat walks into a bar. And doesn't.

  • @jgperes

    @jgperes

    5 жыл бұрын

    Will G. Noice

  • @adorableteddy9328

    @adorableteddy9328

    5 жыл бұрын

    Copied from jacksfilms

  • @willg.8935

    @willg.8935

    5 жыл бұрын

    @@adorableteddy9328 what's jacksfilms

  • @warker6186

    @warker6186

    5 жыл бұрын

    how do u know

  • @willg.8935

    @willg.8935

    5 жыл бұрын

    @@warker6186 yeah

  • @Fins-T
    @Fins-T5 жыл бұрын

    How to make a theory complicated : *Add "Quantum" in it*

  • @MartinBuzon

    @MartinBuzon

    4 жыл бұрын

    I would say adding cats on it. It is really bad explained.

  • @smilingbuddha

    @smilingbuddha

    4 жыл бұрын

    It sounds good though

  • @kautuksingh6820

    @kautuksingh6820

    4 жыл бұрын

    Screen junkies

  • @hero9402

    @hero9402

    4 жыл бұрын

    quantum trump

  • @dennisgonzales9521

    @dennisgonzales9521

    4 жыл бұрын

    👌

  • @Manuel-jr6op
    @Manuel-jr6op8 жыл бұрын

    This is what "Curiosity killed the cat" really means - "[The] Curiosity [of a physicist by the name of Schrödinger] killed the [physicist's] cat."

  • @ExtraordinaryLiving

    @ExtraordinaryLiving

    8 жыл бұрын

    +Mr. Gecko LOL! Makes sense though.

  • @tyrmyrmidon2846

    @tyrmyrmidon2846

    8 жыл бұрын

    I guess so

  • @Commander_Phoenix

    @Commander_Phoenix

    7 жыл бұрын

    hypothetical FUCKING scenario, this is the THIRD FUCKING TIME

  • @ceramicblocks

    @ceramicblocks

    5 жыл бұрын

    HEY VSAUCE! @Le Fedora Cate HERE

  • @liveonthesun3368

    @liveonthesun3368

    5 жыл бұрын

    Killed in a curiosity box

  • @reecerobin8413
    @reecerobin841310 жыл бұрын

    As a cat I find this video offensive.

  • @josephang9927

    @josephang9927

    10 жыл бұрын

    Report if for racism.

  • @Beatle214

    @Beatle214

    10 жыл бұрын

    Not all physicist support catocide!

  • @ZipperOfficial

    @ZipperOfficial

    9 жыл бұрын

    I am offensive and I find this box. Just to annoy shiben..... months later

  • @Mr_Doon

    @Mr_Doon

    9 жыл бұрын

    But it was a thought experiment, not a real test.

  • @OldConorWasGreat

    @OldConorWasGreat

    9 жыл бұрын

    u wot m8 ?

  • @whateverrockyourboat1899
    @whateverrockyourboat18994 жыл бұрын

    Jonas is dead and yet Jonas is alive too. That's the Schrodinger's Jonas

  • @clementeen

    @clementeen

    4 жыл бұрын

    If only Jonas and Martha were in superposition states in the ending. Or if they are entangled in the quantum level than at least one of them should have existed in the ending

  • @abhijit_birje

    @abhijit_birje

    4 жыл бұрын

    They both were in a state of entanglement (loop of two parallel worlds) until the last episode. However, in the last episode they destroyed the knot (loop) and erased the existence of entanglement.

  • @judssonjg6202

    @judssonjg6202

    4 жыл бұрын

    Same as claudia

  • @joydeepdas9201

    @joydeepdas9201

    4 жыл бұрын

    @@clementeen Jonas existed as Hannah is going to give birth to Jonas :)

  • @malharkshirsagar2638

    @malharkshirsagar2638

    4 жыл бұрын

    Joydeep Das noone can create same jonas except for michael and hannah it’s genetics

  • @godwenortea2407
    @godwenortea24074 жыл бұрын

    Narrator: "the everyday world u know and love.." Me: bold of u to assume-

  • @AbhishekKumar-os8be

    @AbhishekKumar-os8be

    3 жыл бұрын

    +1

  • @srivarsha9574

    @srivarsha9574

    3 жыл бұрын

    ·-·'

  • @divyamarkande35

    @divyamarkande35

    3 жыл бұрын

    "One does not simply. . . . Assume so."

  • @rodneyboehner3007

    @rodneyboehner3007

    3 жыл бұрын

    Have to disagree with this video's claim that entanglement will someday allow us to send information or teleport someone instantaneously across the universe. The results of positions of entangled particles are indeed always opposite; however, they are also always randomly opposite. So this will never allow us to send deliberate patterns of information (coordinated 1's and 0's) because all the 1's and 0's will be random and meaningless, even if the pairs are always opposite.

  • @jamespotter1436

    @jamespotter1436

    2 жыл бұрын

    Finally someone that points this out I do love the world tho don’t get me wrong

  • @AndreyPavlovUS
    @AndreyPavlovUS9 жыл бұрын

    Cat experiment was a thought experiment. No cats were harmed. They should mention it in the video.

  • @MrNaranhito

    @MrNaranhito

    8 жыл бұрын

    +Ultimate Gamer Actually, when I first heard about this theory years ago I was astonished and went very excited to tell a friend. After I told the whole thing she just answered me ''well, has anyone already attempted to do the experiment?'' Yeah, I know...

  • @Arkarian01

    @Arkarian01

    8 жыл бұрын

    +Andrey Pavlov they did. they said it was a thought experiment. chill out

  • @dianabianca9055

    @dianabianca9055

    7 жыл бұрын

    Where are your dogs? I hope they weren't harmed in your Operant Conditioning Experiment as well :)

  • @gsivanithin

    @gsivanithin

    5 жыл бұрын

    Yeah

  • @ithunyeasir5662

    @ithunyeasir5662

    5 жыл бұрын

    Hi peta!

  • @SmugHomura
    @SmugHomura5 жыл бұрын

    The animation is absolutely adorable. Well done Dan Pinto!

  • @dhruvkuchhal7692
    @dhruvkuchhal76925 жыл бұрын

    A physicist who doesn't particularly like cats, puts a cat in a box..... Along with a bomb. *They had us in the first half, not gonna lie*

  • @abcxyz-

    @abcxyz-

    3 жыл бұрын

    You joke is like attention I don't get it

  • @humanbeing9946

    @humanbeing9946

    3 жыл бұрын

    why do they need to put it in the box it's already in it or is it???

  • @Vibranium603

    @Vibranium603

    3 жыл бұрын

    @@humanbeing9946 Vsauce

  • @prakharsharma2020
    @prakharsharma20204 жыл бұрын

    cat exists schrodinger: im about to end this cats whole career, or am I?

  • @aoi8182

    @aoi8182

    3 жыл бұрын

    Hey, Micheal Vsauce here

  • @unknownface2463

    @unknownface2463

    3 жыл бұрын

    Hey Vsause , Micheal here

  • @walterhartwellwhite6788

    @walterhartwellwhite6788

    3 жыл бұрын

    Here Micheal, Vsauce hey

  • @Vibranium603

    @Vibranium603

    3 жыл бұрын

    Here Vsauce, Micheal hey

  • @pardeepgarg2640

    @pardeepgarg2640

    3 жыл бұрын

    Vsauce here , Hey Michael

  • @nullvoid6083
    @nullvoid60834 жыл бұрын

    **Schrödinger has entered the chat** -**Einstein has exited the chat**

  • @priyanshudutta9463

    @priyanshudutta9463

    4 жыл бұрын

    So true.

  • @manelnhl4393

    @manelnhl4393

    3 жыл бұрын

    -*Or cats have exited the chat*

  • @roeetoledano6242

    @roeetoledano6242

    3 жыл бұрын

    You could resolve this paradox by saying that this is technically not delivering information faster than the speed of light, because once we measure one of the cats state, we already know the state of the other one. So this isn't violating Einstein's rule of no information is able to deliver information faster than light.

  • @Shrektopuz

    @Shrektopuz

    2 жыл бұрын

    @@manelnhl4393 *-Cats may or may not have exited the chat*

  • @Mohamed-jv6nv
    @Mohamed-jv6nv5 жыл бұрын

    Before watching this video I was confused, and now I'm still confused

  • @royhsieh4307

    @royhsieh4307

    5 жыл бұрын

    still better than going into a superposition of confused and not confused at the same time

  • @troyroa7768

    @troyroa7768

    4 жыл бұрын

    @@royhsieh4307 love the reply. Lol

  • @---ne9xp

    @---ne9xp

    3 жыл бұрын

    No, you are both confused and not confused...

  • @AM-xi3ec

    @AM-xi3ec

    3 жыл бұрын

    Same

  • @adityarokde1304

    @adityarokde1304

    3 жыл бұрын

    "If you are not confused, then you are not thinking." -Sir Albert Einstein.

  • @zsanaz007
    @zsanaz0075 жыл бұрын

    *At ending* "Maybe your cat will teleport to another safer Galaxy, with no boxes." Me: But cats love boxes..

  • @laurensullivan1522

    @laurensullivan1522

    5 жыл бұрын

    Lol. Amazon is my kitties best friend.

  • @anteater9408

    @anteater9408

    4 жыл бұрын

    No, cats love and hate boxes at the same time!

  • @gowtham495

    @gowtham495

    4 жыл бұрын

    Not the one with bomb

  • @rohithg9153
    @rohithg91534 жыл бұрын

    KZread recommended to me because of DARK series!!!

  • @akashsadhu1430

    @akashsadhu1430

    4 жыл бұрын

    🤣🤣

  • @harmitdhaduk7237

    @harmitdhaduk7237

    4 жыл бұрын

    I saw this bcoz of dark series

  • @vakotmohsin634

    @vakotmohsin634

    4 жыл бұрын

    Same here ...lol

  • @ankitjoshi90

    @ankitjoshi90

    4 жыл бұрын

    Me too😆

  • @shubhanginisharma4475

    @shubhanginisharma4475

    4 жыл бұрын

    Me too

  • @AsellusPrimus
    @AsellusPrimus7 жыл бұрын

    I've been trying for years to wrap my head around quantum physics (like many people) and this video did a really good job of explaining it. So as I understand it now, quantum physics is something that occurs at an atomic level but at a macro level that we would observe in everyday life...

  • @01rai01
    @01rai019 жыл бұрын

    I think Einstein disliked this video 117 times.

  • @edenicisotope534

    @edenicisotope534

    8 жыл бұрын

    155

  • @vikramfugro3886

    @vikramfugro3886

    8 жыл бұрын

    Yes. He is still alive in some other universe and this is his spooky action from a distance. :)

  • @01rai01

    @01rai01

    8 жыл бұрын

    vikram fugro So he must have liked the vid in other universe.

  • @Dracstar

    @Dracstar

    8 жыл бұрын

    +rai ZOR Why would he? He was working on the fundamentals of quantum mechanics before he died.

  • @01rai01

    @01rai01

    8 жыл бұрын

    Dracstar apparently he wasn't a fan of quantum entanglement.

  • @JoeShockey
    @JoeShockey3 жыл бұрын

    Removing the “both dead” and “both alive” possibilities seemed kind of arbitrary. That must be the part that is too difficult for us mere mortals to understand.

  • @safwanbaksh2224

    @safwanbaksh2224

    3 жыл бұрын

    if you find out why they did that please let me know

  • @alexanderhenderson5111

    @alexanderhenderson5111

    2 жыл бұрын

    It has to do with conservation of momentum. If the system has a total spin of 1, you cannot end up with 2 particles with spin of 1 (alive cat) or 2 with 0 spin (dead cat).

  • @anwynanimations7207

    @anwynanimations7207

    2 жыл бұрын

    From what I understood in a Veritasium video, since the total angular momentum in a universe must stay constant, if one particle spins up the other must spin down. Whether the cat is dead or alive represents the up or down spin of a particle. kzread.info/dash/bejne/jKmqrY-olJmaZ8Y.html @Safwan Baksh

  • @anwynanimations7207

    @anwynanimations7207

    2 жыл бұрын

    @@safwanbaksh2224 From what I understood in a Veritasium video, since the total angular momentum in a universe must stay constant, if one particle spins up the other must spin down. Whether the cat is dead or alive represents the up or down spin of a particle. kzread.info/dash/bejne/jKmqrY-olJmaZ8Y.html

  • @sarahgueli8731

    @sarahgueli8731

    2 жыл бұрын

    @@stevengreen4253 you seem to know what you're talking about so I'm going to ask you this question. Haha it's your punishment for being smart. Anyway. I'm a non physics trained just enjoyer of the topic. I conceptualize entanglement using a wishbone example. If you break the bone with a friend and hide the piece in your hand, you each have a 50/50 chance of having either piece (superposition?) If you go to the moon and look at your piece first, you put yours in position and consequently theirs too?

  • @himanshusalve8409
    @himanshusalve84094 жыл бұрын

    After 5 years this video got too much attention because of Netflix's DARK.

  • @himquantum
    @himquantum8 жыл бұрын

    They sud have explained why Quantum physics rules out both cat dead (or alive) scenario

  • @annabelli3359

    @annabelli3359

    8 жыл бұрын

    +Himanshu Kumar Yeah, I still don't understand that part.

  • @pixelater4943

    @pixelater4943

    8 жыл бұрын

    That's the point. They don't know.

  • @addz7210

    @addz7210

    8 жыл бұрын

    Pauli Exclusion Principle :)

  • @dustin3596

    @dustin3596

    8 жыл бұрын

    +Himanshu Kumar because when two particles are entangled, they influence each other in opposite ways

  • @himquantum

    @himquantum

    8 жыл бұрын

    does the cat analogy mention that both cats are entangled ?

  • @battlefieldclips7013
    @battlefieldclips70135 жыл бұрын

    I mean I understood the story of cats well until he said “ quantum “

  • @royhsieh4307

    @royhsieh4307

    5 жыл бұрын

    so at the moment he added the word quantum to the story, u have reached the superposition.

  • @samuelissosaesome9148

    @samuelissosaesome9148

    3 жыл бұрын

    Wow that’s true.

  • @Stu_Eird
    @Stu_Eird4 жыл бұрын

    Shake the box, u will know either the cat is alive or dead without opening😂😂😂

  • @avenaash5027

    @avenaash5027

    4 жыл бұрын

    smh😂😂

  • @AtharvaCM

    @AtharvaCM

    4 жыл бұрын

    You might be onto something here 😂😂😂

  • @kalagaarun9638

    @kalagaarun9638

    4 жыл бұрын

    schrodinger, i guess, wasn't as smart as you 😂😂

  • @allaboutfitness4472

    @allaboutfitness4472

    4 жыл бұрын

    Sooooooo true looolz deserve to win a novel prize

  • @atd9945

    @atd9945

    4 жыл бұрын

    that count as "observe" as well well ok i know youre joking im sorry

  • @tapendrashahi2097
    @tapendrashahi20975 жыл бұрын

    Now, this raised even more questions in my mind.

  • @Ray2311us

    @Ray2311us

    5 жыл бұрын

    Roronoa Zoro raised nothing in mine

  • @royhsieh4307

    @royhsieh4307

    4 жыл бұрын

    no it doesn't. now u r in position.

  • @JHLee7Alpha
    @JHLee7Alpha9 жыл бұрын

    Quantum physics always make my brain hurt. x_x

  • @MultiSciGeek

    @MultiSciGeek

    9 жыл бұрын

    +J.H. Lee it just feels like there is something really wrong with it

  • @yshrj9

    @yshrj9

    8 жыл бұрын

    +J.H. Lee I'm with you. last 2 weeks i have been studying on this thing.

  • @huaren6229

    @huaren6229

    8 жыл бұрын

    Maybe like in a simulated game or a cartoon. The 2d or 3D characters have to follow the rules of space or physical interactions as ordained by the artist existing in a higher dimension(probably two dimensions higher). But suddenly the artist decides on a whim to make an object appear by painting or coding it. Then the characters, initially shocked that the appearing object has breached the rules, start realising that what they thought to be the rules was not law but rather illusory that had ways around them. They then start to find hacks; enlightenment, quantum computing, teleportation...

  • @redragongaming

    @redragongaming

    5 жыл бұрын

    And it's because you delve too much into details, let it go...

  • @syndren4377

    @syndren4377

    5 жыл бұрын

    Because the law of physics in the universe does not care what your brain is capable of.

  • @magicstix0r
    @magicstix0r8 жыл бұрын

    "The everyday world you ... love..." Making a lot of assumptions there chief... Who can love a world with a universal speed limit?

  • @slinkydrinky1084

    @slinkydrinky1084

    8 жыл бұрын

    +magicstix0r what a stupid reason to not LOVE

  • @slinkydrinky1084

    @slinkydrinky1084

    8 жыл бұрын

    +magicstix0r Nothing can exist without limitations... sooo

  • @chikeezebilo6545

    @chikeezebilo6545

    8 жыл бұрын

    Could the universe have existed without a universal speed limit?

  • @slinkydrinky1084

    @slinkydrinky1084

    8 жыл бұрын

    Chike Ezebilo I think the speed limit is only limited by perception, perhaps there is no speed limit but in order to perceive anything the mind has to draw the line and choose. for example, if you want to watch a snail race an asteroid, you have to make the decision to watch only one of them, as the asteroid would get so far ahead it can no longer be seen, or the snail so far behind.

  • @chikeezebilo6545

    @chikeezebilo6545

    8 жыл бұрын

    Slinky Drinky okay, but if that's the case, how come we all perceive exactly the same result everywhere in the universe?

  • @gilsonmozart1530
    @gilsonmozart15305 жыл бұрын

    If it's true, we do live in a simulation, where everything is already predicted.

  • @urazashamsi2745
    @urazashamsi27453 жыл бұрын

    I wish I had been taught quantum chemistry like that.

  • @erwindee7384
    @erwindee73848 жыл бұрын

    I am so surprised I don't see a single comment specifically about how cute the cats are. THEY ARE JUST TOO DAMN CUUUUTE!!!

  • @catsalive1

    @catsalive1

    8 жыл бұрын

    Actually I never thought cats looked good in glasses.

  • @aditya234567

    @aditya234567

    8 жыл бұрын

    NErdy cats lol

  • @lordlystarky

    @lordlystarky

    4 жыл бұрын

    Until they poo through their mouth

  • @himquantum

    @himquantum

    4 жыл бұрын

    are you a cat video watcher and youTube recommended you this ?

  • @garlic_bread180

    @garlic_bread180

    4 жыл бұрын

    IKRRRRR

  • @Leedramor
    @Leedramor10 жыл бұрын

    I wish there is a video like this about spin of particles. It will be fascinating to understand the spin with a cat explaining.

  • @nitinshri1
    @nitinshri14 жыл бұрын

    And after studying it deeply The Germans created the 'Dark' series and messed up our minds. Such a powerful stuff.

  • @theouts1der

    @theouts1der

    3 жыл бұрын

    they got Schrodinger Cat very wrong, even this video does. today 90% of so called Science Enthusiast propagate this experiment in a wrong way!

  • @yarramarieamancio8946
    @yarramarieamancio89465 жыл бұрын

    Me: Do you guys just put *Quantum* in front of everything? Ohhh just remembered, Sheldon Cooper already explained this Cat thing to me

  • @callum2474
    @callum24744 жыл бұрын

    There's a lot of entanglement going on these days...

  • @TheSenileOldMan
    @TheSenileOldMan10 жыл бұрын

    .. so how do things become entangled? also, how do scientists find two entangled particles? is there a way to force entanglement upon two particles?

  • @SabiFu

    @SabiFu

    10 жыл бұрын

    +1, been thinking of this for a long time.

  • @kaaajeee

    @kaaajeee

    10 жыл бұрын

    exactly. withou answering your question, the lesson is worthless.

  • @TheZzpop

    @TheZzpop

    10 жыл бұрын

    mesure the total spin of two particles and when you then mesure their individual spins it must add up to the total. However the two particles spins are individual random but will always come out to add up to the corect total. So for instance, if two particles together have 0 spin then one particle must have spin 1 and the other spin -1 (this might corospond to spinning clockwise or counter clockwise). The total must be 0 and 1 + (-1) =0. But its random which will have spin 1 and which will have spin -1. So until you measure one of them each particle could be either 1 or -1 but once you mesure one of them you now know that it is 1 and the other is -1 or the reverse. This is true no matter how far apart they were seperated.

  • @blakelasky6893

    @blakelasky6893

    9 жыл бұрын

    TheZzpop that's what I don't get. They both had to choose on or the other right when the box was closed to balance out so why do we say that the information is being transferred at the next measurement. We are measuring something that was decided when the lid was closed. Please help me understand this.

  • @kaddru

    @kaddru

    9 жыл бұрын

    Blake Young Well, it actually isn't decided when the lid is being closed, that is a slight misconception that arises from the analogy in the video. In quantum mechanics the actual "collapse of the wave function" as it is called, happens when the particle is OBSERVED. What this means is that the particle is in two (or more) states at the same time until a measurement is made.

  • @sravansathian2052
    @sravansathian20524 жыл бұрын

    Appreciate the cool animation they did for the video.... Great concepts made understanding with simple and funny graphics....

  • @benYaakov
    @benYaakov3 жыл бұрын

    Me : Is your cat alive or dead ? Schrodinger : Um , it is actually ... Meanwhile cat from box : Meow !

  • @fivforfivfor
    @fivforfivfor4 жыл бұрын

    This is the best rendition (examples ; explanation) of super-position and entanglement I have ever heard Very well explained ...So well... That your almost giving away the whole secret And I do mean this seriously !!!

  • @taliagauvain-hartley8814
    @taliagauvain-hartley88145 жыл бұрын

    The example at the start does not make sense to me because any time i throw a ball it will either land on my head, foot or i just will lose it

  • @gugidovahkiin
    @gugidovahkiin4 жыл бұрын

    Who came here after watching "Dark" Season 3?

  • @harmitdhaduk7237

    @harmitdhaduk7237

    4 жыл бұрын

    Me

  • @75yomu

    @75yomu

    3 жыл бұрын

    I came here after watching seishun buta yarou

  • @tronganhvu7614

    @tronganhvu7614

    3 жыл бұрын

    see no relate between this theory and this tv show, can you explain for me🤔

  • @gugidovahkiin

    @gugidovahkiin

    3 жыл бұрын

    @@tronganhvu7614 Dark season 3 is based on Quantum Entanglement.

  • @etudaire8111
    @etudaire81115 жыл бұрын

    That little cat wink at the end near about killed me

  • @patrickcabigao2907
    @patrickcabigao29077 жыл бұрын

    I just looked at the cat the whole time :/

  • @yensaeyak5946
    @yensaeyak59466 жыл бұрын

    Yes. I'm here from Ant-Man and The Wasp.

  • @Nom8d

    @Nom8d

    5 жыл бұрын

    I'm here from my mom

  • @bcoaeues9668

    @bcoaeues9668

    5 жыл бұрын

    SAMEE!!! I just finished the moviee ;_;

  • @greenlite37
    @greenlite373 жыл бұрын

    Schrodinger:I don't know if cat is dead or alive Cat:meow! Schrodinger:shut up!

  • @boop5716
    @boop57165 жыл бұрын

    I didn't realize before this how absolutely beautiful and mind-blowing science is.

  • @Sweet--Richard.4981
    @Sweet--Richard.49817 жыл бұрын

    If you could resurrect one cat would the other one die instantly ?

  • @ExatedWarrior

    @ExatedWarrior

    6 жыл бұрын

    I realize you're probably joking but this is actually an important question in quantum physics, and the answer is no. You cannot actually influence of the other particle otherwise you'd be sending information faster than the speed of light which cannot be done this way. Entanglement doesn't actually have communication so it doesn't violate this principle and it only applies to limited measurements.

  • @luckyturds6536

    @luckyturds6536

    5 жыл бұрын

    It doesnt necessarily have to be the other one being dead and the other being alive, the 2 cats were just in a superposition state. We'll only know the outcome if we observe it. But the thing that i dont understand is that the 2 possibilities were canceled out or was it just because they had a 50% chance of being dead or alive?

  • @afmorales7155

    @afmorales7155

    5 жыл бұрын

    @@luckyturds6536 it is cancelled out due to entanglement. no matter what happens to the other box the entangled box will be the opposite of the other. so if one cat is dead then the other will be alive there's no way they both live nor dead

  • @sethwuirch3447

    @sethwuirch3447

    5 жыл бұрын

    alstone morales how / why are they entangled though?

  • @akshajbansal3600

    @akshajbansal3600

    5 жыл бұрын

    Dont be too serious about it leave it to scientists to get some another animal killed😂😂

  • @elijahbaley5556
    @elijahbaley55569 жыл бұрын

    1:29 Yes, you would know, because the box would be destroyed by a bomb.

  • @elijahbaley5556

    @elijahbaley5556

    8 жыл бұрын

    Ac1130 010b I know

  • @ExtraordinaryLiving

    @ExtraordinaryLiving

    8 жыл бұрын

    +Mr. feeling He's being facetious. ;)

  • @raphaelburce7097

    @raphaelburce7097

    7 жыл бұрын

    It was portrayed as some sort of radiation device by most

  • @mherkhachatryan666

    @mherkhachatryan666

    6 жыл бұрын

    Actually Shrodinger did not use bomb in his experiment , he used toxic gas which was filled in glass bottle , which should be broken by hammer, using radiation of some radioactive atom.

  • @sunithavs8901

    @sunithavs8901

    5 жыл бұрын

    What if it was bio bomb

  • @mdk8859
    @mdk88594 жыл бұрын

    its strange how youtube recommended me this video while i was watching The Big Bang Theory, where they were pulling a joke on Schrodinger’s cat

  • @frenchy16785
    @frenchy167855 жыл бұрын

    Oh dear. I'm having my Sunday night, KZread video binge, existential crisis again

  • @sannathbehere2623
    @sannathbehere26235 жыл бұрын

    So,quantum entanglement is basically a long distance relationship!

  • @shanubhau8629

    @shanubhau8629

    4 жыл бұрын

    agar aisa hai toh pakka katega

  • @sannathbehere2623

    @sannathbehere2623

    4 жыл бұрын

    @@shanubhau8629 Tera kata hua lagta hai😂😂

  • @hansikathakare4810

    @hansikathakare4810

    3 жыл бұрын

    @@shanubhau8629 lmaoooo

  • @shanubhau8629

    @shanubhau8629

    3 жыл бұрын

    @@sannathbehere2623 han bhai

  • @definitely.not.your.type.
    @definitely.not.your.type.3 жыл бұрын

    *KZread knew what’s in my textbooks better than myself* 😨😂

  • @gkaumudi7585
    @gkaumudi75852 жыл бұрын

    The pause before the cat wink in the ending though

  • @Arunrajabraham
    @Arunrajabraham5 жыл бұрын

    Wow...never knew this channel existed..subbed as fast as possible!!!!

  • @bhargavparashar9563
    @bhargavparashar95635 жыл бұрын

    The method of explaining the topics is really very good. Some more videos regarding quantum physics will be really appreciated

  • @ryduNNNNN
    @ryduNNNNN10 жыл бұрын

    I didn't understand how he eliminated 2 probabilities (2 dead or 2 alive). Can someone explain?

  • @shubhraagarwal9250

    @shubhraagarwal9250

    5 жыл бұрын

    pauli's exclusion principle states that if one of the two electrons in an orbital have up spin then the other can only have down spin (opposite spins). Similiarly, if one cat is alive the other has to be dead.

  • @ADAJ342

    @ADAJ342

    5 жыл бұрын

    Ok ,but why?

  • @nicky09yash

    @nicky09yash

    5 жыл бұрын

    It's because the result will be certain. There is a 50% probability of the cat dying (or living). If both live (or die) then you're certain that the cat is either dead or alive.

  • @ADAJ342

    @ADAJ342

    5 жыл бұрын

    @@nicky09yash , ah, ok, thank you !

  • @sreeharis7466

    @sreeharis7466

    5 жыл бұрын

    @@nicky09yash How does it become certain? You will know both cats are alive only after checking both boxes.

  • @sophiamoonsingerfunworld2365
    @sophiamoonsingerfunworld23659 ай бұрын

    I can't belive a 2 year struggle could be solved with a 5 minute video. Like where was that 2 years ago! 🤣

  • @tamilchristiangoldensongs3057
    @tamilchristiangoldensongs30575 жыл бұрын

    Mind blowing theory and crystal explanation.

  • @kakashihatake7216
    @kakashihatake72164 жыл бұрын

    Wow! I suddenly start to love physics after watching the Dark series!

  • @notveryrea1
    @notveryrea14 жыл бұрын

    "Quantum entanglement" Will Smith: Where do I begin?

  • @yohansaldana8218
    @yohansaldana82185 жыл бұрын

    The animation of this video is better than any of your other videos.

  • @michaelmears6770
    @michaelmears67703 жыл бұрын

    Schrödinger's cat: "And I took that personally "

  • @satishraut7988
    @satishraut79885 жыл бұрын

    I was about to post a joke on quantum mechanics but it is funny and unfunny at the same time.

  • @indianawilson6973
    @indianawilson69737 жыл бұрын

    How the fuck would you not know if a bomb went off inside the box until you open the lid? There wouldn't even be a box left for you to look at.

  • @jmazuryk

    @jmazuryk

    7 жыл бұрын

    The experiment is usually conducted with a poisonous radioactive isotope that has a 50% chance of decaying and killing the cat inside the box over the course of an hour. I'm assuming the narrator was attempting to simplify the experiment, but the substitute explosion does tend to confuse things. Edit: And when we say this experiment is conducted, we're referring to it as a THOUGHT experiment... Scientists aren't really killing any cats at all, except in their minds I suppose

  • @Sam_Dehingia
    @Sam_Dehingia3 жыл бұрын

    The last statement regarding cats impressed me 😂

  • @stormtrooper_
    @stormtrooper_4 жыл бұрын

    How can you not know if the bomb exploded without opening the box?! I mean it's a freakin' bomb josh.

  • @dipsyteletubbie802
    @dipsyteletubbie8028 жыл бұрын

    I love they made all 'humans' cats in this vid 😂

  • @coolguy4989

    @coolguy4989

    8 жыл бұрын

    😹😹😹

  • @puneetpradhan7657
    @puneetpradhan76574 жыл бұрын

    4:21 i think there's a way of information transfer it's just that we haven't discovered that yet

  • @aaroncurtis8545

    @aaroncurtis8545

    4 жыл бұрын

    There's a very interesting, somewhat new theory about ER=EPR. The information travels through a wormholes, and from this emerges a physical reason for the quantization of space-time. If I can find the World Science Festival episode with it, I'll link it.

  • @aaroncurtis8545

    @aaroncurtis8545

    4 жыл бұрын

    If memory serves, it's based on Hologram theory. I think the part I'm thinking of is about 2/3 of the way into the talk. kzread.info/dash/bejne/dHqmpNRxn7i8iLg.html

  • @Namse21
    @Namse215 жыл бұрын

    Thank you for telling me a topic that i have to contain till i reach college where i can finally tell this

  • @amansrivastava1375
    @amansrivastava13754 жыл бұрын

    Ted Ed iniated the idea of entanglement DARK series just delivered it 😍

  • @swantanbarua9327
    @swantanbarua93274 жыл бұрын

    I know you are here because KZread recommended you after watching Dark S3

  • @ThePvthfinder
    @ThePvthfinder8 жыл бұрын

    What a fantastic video, well narrated with just enough information and extremely well animated. Thank you.

  • @chandersen9219
    @chandersen92193 жыл бұрын

    Legends says cat is still waiting for some one to open that box.

  • @Mr_-Heisenberg
    @Mr_-Heisenberg4 жыл бұрын

    "What's in the box??" Movie Seven ending would totally be different 🤣

  • @rententee
    @rententee8 жыл бұрын

    Soooo I just tried this experiment,and now my room is filled with smoke and cat guts...

  • @stitchcompany291

    @stitchcompany291

    8 жыл бұрын

    Shouldn't have opened the box.

  • @v_srikanth

    @v_srikanth

    8 жыл бұрын

    +Anthony Hayes lol 😂😂😂

  • @amv7342

    @amv7342

    4 жыл бұрын

    Results pls both alive or dead

  • @willferrous8677
    @willferrous867710 жыл бұрын

    this is one of the highest quality vids from TEDed yet.

  • @yifeiyang4079
    @yifeiyang40794 жыл бұрын

    Yeah, Imma just say that the kitty design was just adorable

  • @mavisdracula970
    @mavisdracula9704 жыл бұрын

    Wow! Even my best teacher couldn't explain to me so clearly))) thanks)

  • @Carol-qt1ix
    @Carol-qt1ix4 жыл бұрын

    * Dark final season is released * Hmmm, I wonder why KZread is recommending me this

  • @abhinavmishra1785
    @abhinavmishra17855 жыл бұрын

    Schrödinger's smile/frown for you - :(:

  • @roshandon3157
    @roshandon31574 жыл бұрын

    *No cars were harmed in making of this video*

  • @eyad6132
    @eyad6132 Жыл бұрын

    0:58 whoa, that’s quite a leap in thought

  • @gregoriuswuli4442
    @gregoriuswuli44423 жыл бұрын

    "So is the cat alive?" "Yes'nt"

  • @ajinkyamuley5375
    @ajinkyamuley53754 жыл бұрын

    'You and I are perfect for each other. Never believe anything else' - Quantum Entanglement

  • @piyush_d4501
    @piyush_d45014 жыл бұрын

    That last part made me happy 😂

  • @bubankarl9851
    @bubankarl98513 жыл бұрын

    I have an enormous questions in my head rn.

  • @TheCakeIsNotaVlog
    @TheCakeIsNotaVlog10 жыл бұрын

    Plot twist! We are the cats

  • @matheusadornidardenne8684

    @matheusadornidardenne8684

    10 жыл бұрын

    No plot twist at all... this concept applies to everything in our lives: information only has a real value when measured.

  • @TheCakeIsNotaVlog

    @TheCakeIsNotaVlog

    10 жыл бұрын

    Precisely!

  • @AbdulHannan-uv6ym

    @AbdulHannan-uv6ym

    6 жыл бұрын

    Again plot twist, if we are the cat some one is observing us and some one is observing our observer as well and so on unless we reach a cosmic observer, which is observing all the cosmos, sitting outside the cosmos, so the cosmic observer has set up rules for this simulation which we are in and programmed every thing from paths of stars to laws of physics to coding found in our DNA, in simplified language this proves existence of GOD.

  • @edgyraag3643
    @edgyraag36434 жыл бұрын

    Finished watching dark yesterday KZread today:

  • @tenkhong93
    @tenkhong935 жыл бұрын

    Does the fridge's light work like this? I have been trying to solve this problem since I was a child

  • @wynstansmom829

    @wynstansmom829

    4 жыл бұрын

    Do you know how to tell if the elephants in your fridge left the light on? Footprints in the Jello. I had the very same question and this is how my grandmother explained it to me. I hope you have or have had a grandmother as wonderful as mine. Namaste'

  • @sonicblue7real357
    @sonicblue7real3573 жыл бұрын

    how can you look inside the box, when the box has gone when it went off?

  • @commanderkuplar3790
    @commanderkuplar37905 жыл бұрын

    Alright so how do two entities become “entangled”?

  • @SadCrabMan23

    @SadCrabMan23

    5 жыл бұрын

    Legendary Gattos exciting space using energy to create particles out of energy

  • @vijayaraghavanramakrishnan1610
    @vijayaraghavanramakrishnan16109 жыл бұрын

    how is it possible to erase the both cats dead /alive possibility?

  • @shubhraagarwal9250

    @shubhraagarwal9250

    5 жыл бұрын

    pauli's exclusion principle states that if one of the two electrons in an orbital have up spin then the other can only have down spin (opposite spins). Similiarly, if one cat is alive the other has to be dead.

  • @Abbastech4
    @Abbastech45 жыл бұрын

    How could I made a video like that? What is the names of such programs???

  • @desdemondaluvssevenbrother4846
    @desdemondaluvssevenbrother48464 жыл бұрын

    Why were the first two options cut out(for the cats either both being alive or dead)?

  • @carlspheno
    @carlspheno9 жыл бұрын

    How do we know 2 objects are entangled to each others ? for instance we have 10 objects how do we know which 1 entangled to another 1 ?

  • @itskelvinn

    @itskelvinn

    9 жыл бұрын

    Leaving my comment here because id like to know as well

  • @stephenkamenar

    @stephenkamenar

    9 жыл бұрын

    Harvey Sia You know based on the laws of physics. If you have some chemical reaction that always produces two particles in this way: one with spin down, and the other with spin up. Those two particles are entangled. If you check one and it's spin up, the other has to be spin down (otherwise the laws of physics broke)

  • @AgentAileron

    @AgentAileron

    9 жыл бұрын

    Stephen Kamenar Ah ok, I'm starting to see what you're saying - there can only be two outcomes, and these outcomes will always oppose each other - so instead of having 10 particles where each is entangled to another, you really have five different entangled particles which aren't related or connected to one another. I mean, there's probably more to it than that, but on a basic level is that what you're describing?

  • @ginsan8198

    @ginsan8198

    9 жыл бұрын

    I want to know the answer too.

  • @carlspheno

    @carlspheno

    9 жыл бұрын

    I knw the answer alrdy I jus can't explain , I think I was asking the wrong question.

  • @sabertalha6945
    @sabertalha69455 жыл бұрын

    Antman has joined the chat.

  • @brokenbauccner3945
    @brokenbauccner39454 жыл бұрын

    I liked the end 😂 poor cat ran away

  • @wasifzakwan8722
    @wasifzakwan87223 жыл бұрын

    That last sentence made me laugh XD

  • @yatharthmittal6286
    @yatharthmittal62864 жыл бұрын

    The beginning is the end

  • @bomes12

    @bomes12

    4 жыл бұрын

    Why not the forest road

  • @Gh_ost-x

    @Gh_ost-x

    4 жыл бұрын

    The End is the Beginning

  • @fairfight9857

    @fairfight9857

    4 жыл бұрын

    Haha Dark

  • @babarpgaming9917
    @babarpgaming99174 жыл бұрын

    Netflix dark brings me here.... Anyone else?

  • @713gerald
    @713gerald Жыл бұрын

    You'll know the cat is alive when it starts to meow. 🤣

  • @bagpackervivek
    @bagpackervivek Жыл бұрын

    How come in the 4 cat experiment both cat cannot be dead or living ? Can someone explain it to me ?