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Einstein's Proof of E=mc²
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- เผยแพร่เมื่อ 28 มี.ค. 2012
- Ever wonder how Einstein proved E=mc²? This is how.
Pi day (3.14) is Albert Einstein's Birthday! To celebrate, we'll explain 4 of his most groundbreaking papers from 1905, when he was just 26 years old.
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"Suppose there's a cat in space.......E=mc²"
Thanks,now i understand it
Happy to help
I F ING LOVE AVATAR
Then I love you
Thanks my fav tv show in the 🌍 world 🌎
Literally all I understood was light cat and spaceship
Ikr
Me too.
lol me too
Lol ikr
Your not Gol D. Rodger you are luffy.
Just when I was about to crack the code with the cat he moved on to a freakin' spaceship.
Hhaahahahahahahahah
Omg right hahahaha
🤣🤣🤣🤣
Teacher: How could you not understand, the instructions were clear
The instructions:
Loll
The teacher: Any questions?
Me: Yeah, what the fck?
Mafumafu?
@3.142 *proceeds to eat*
@3.142 3.14159265358979
I hate you 💀
𝙇𝙤𝙡
I’m even more confused now. Never heard of catnetic energy before.
Kinetic energy means the energy created by the motion of an object . If a object having mass m goes in direction in v velocity the the kinetic energy of that object will be 1/2 mv^2
@@samirsiraj4860 r/wooosh
HSHAHAHAHAHA
@@apatriot6421 Recommended to NOT use r/whoooosh if you don’t want to start a riot in the the replies section
@@louiswong921 what does this mean please
Before: hope could understand more
After: cat, energy, spaceship
😂😂🤣
some problems with the derivation: 1) the expression for relativistic doppler effect with v^2 means that there can only be "blue" shift for a light source moving towards the observer or away from the observer. obviously this is not true, 2) one cannot use relativistic doppler expression and combine it with non-relativistic kinetic energy expression where v
Cat is the new SI unit for everything
XSKY true
😂😂😂😂
Ikr
Bitch
@@mdyusufzaman9356 LOL
Literally i thought i was dumb when i didn't understand anything..but now i feel relaxed when any of us understood nothing...
yeah me too. shoo
Some people have that breakthrough moment in their head and understand the equation. I’m still trying hard to get mine
@@mr.swiggles9679 well i understood some parts, most of them but, if u dont understand everything then u dont understand anything, or thats what i think, well were both dumb
@Kian Saliany the example part was hard to understand and all the nonsense but i know what the actual equation means
@Kian Saliany tho i dont understand that for a moving object the calculation is E^2=(mc^2)^2+(pc)^2 and would you get the energy of the moving object when its moving or when its still and since its squared do you need to find the square root???
This is beautiful! I love how you do not need to use any calculus, as well as how short it is
This was simply amazing. Thank you so much for this. 00:38-1:00 that's where I began to understand the kernel of the idea.
I understood this perfectly. After watching it twice. After having done a General relativity course.
Yashodhan Manerikar this is special relativity tho lol
@@benschmitt7035 He's still saying that a general relativity course helped him understand this better too.
I do electrical engineering so I've got little to do with this, but the method of thinking enabled to also understand exactly what was going on in the video.
Bcz u r Indian soooooooo 🙏🏼
@@benschmitt7035 I am saying that it's a bit tough to understand at first even for a physics major. Great video though.
Well, but the video is wrong. You can't use 1/2 mv^2 in special relativity, because it doesn't hold in special relativity... And the doppler effect in the case of the video is not uniform, the frequency and therefore the energy of the light would depend on the direction it's travelling in.
*Top 10 scientists Eminem was afraid of :*
M. ELKHODEERY underrated bruh! Very very underrated 😂😂
A good underrated content is far better than being a toxic overrated one.
Brooooo🔥
Very underated comment
Can anyone explain this Eminem comment!😅
I knew it was related to Kinetic Energy because the formulas are closely related. This is a good interpretation. Thank you.
Can someone explain to me how this relates to the regular doppler effect. Like the dominant effect of an object moving away from you is to red shift it, so when we measure the light it should have lost energy instead of gaining it like the video suggests. Also, can we know that KE + energy of the light accounts for all the energy in the system?
can you talk faster?
I think most of the audio was edited to be x2 speed.
I really does! LOL
next time speak English!
Hahahahaah !!!!!! :'D !!! Laughed my ass offffff
Oh man i never laughed like that in years.
Looks like the cat got out of the box again and is causing all kinds of havoc in the universe.
+AirCommandRockets Kudos!
But is it alive or dead?
+Karl Hiramanek Yes.
Karl Hiramanek Both.
#nerdjokes 👌
That was surprisingly simple to understand so I assume you did a great job explaining it.
@@jinjleproducts5650 get done with classic physics first then get into modern physics you'll get it.
めちゃくちゃ分かりやすかったです!!
勉強になりました!!
E=MC2 = Explanation Might Confuse Too
Underrated
XD!! Amazing!! The Level of creativity is 100!! Max Level!
Highly imaginative brain.....
😂👍
Einstein 2.0
At this time i want to thank 0.25× for supporting me through this video
Thank you!!!!!!! This is a wonderful understandable derivation of E = mc2, since the original one is written in German. Your presentation save a lot of physicist's lives!
minute physics is the only channel that will get me to learn things in my free time
Where can I found a radioactive floating cat
Rick c-137 I thought u were smart rick
Rick c-137 shut up rick
You are rick c137 figure it out by yourself
WAVALAVA DUBDUB
Shrodinger cat
You're faster than the speed of light
That is mathematically not possible XD but ok
@@v4r146 since he said that so he definitely knows this :)
@@hagoraashraf5013 ok Albert Einstein 2.0 :)
@@v4r146 lol u called @Hagora Ashraf Albert Einstein 2.0
@@v4r146 You run faster than the speed of light if you Naruto run.
So Relative means like, I look at an airplane flying 6 miles above and it looks like it's going slow near the horizon when it's not really? So it's just about looks?
Loved this video years ago when I had no clue what was happening and love it now even more rewatching it after a year of engineering thermo
Speed of light is nothing when compared to your speed of talking 😐
Trueee!!
Absolutely true...
Sonic aka speed o' sound
😂😂😂😂
Thank utube for 0.75 speed.😂
Okay, not ashamed to say it, but my brain just melted.
Still melting
its hurting my brainwash.. my
yea no mine is broken!
mine just disintegrared
mine just disintegrared
Everyone is confused but this actually explains it really well for a 2 minute video.
Hat's off Man for your intelligence to understand me so quick.
Thanks a lot 😀
2:11 mins of physics about E=MC^2
Observation: cats live in space
Conclusion: cats are evolving
Lol
egg = mc²
Conclusion.. cats are dead... lol...
socrates be shaking in his grave rn
But what if the cat is Schrödinger's cat?
The cat can be either alive or dead when it's moving, I don't see how this changes anything.
skunkFU25
*really bad joke that relies taking a previous joke seriously* was the first result
skunkFU25
hold on, that was a _pun_, not a joke. Edit for my comment: *really bad joke that relies on taking a previous **_pun_** seriously*
skunkFU25
_immediately attemps to think of a way to continue..._
_can't_
_twitches_
Maniac12G It is Schrödinger's cat. But it's also simultaneously not Schrödinger's cat.
Perfect explanation.
No relativistic mass included! best derivation out there!
Damn. This video might be old, but it actually made sense in a way. Wow.
I have one question:
WHAT?
What what ?
What what?
It just works
ı have better one: why ?
I have an even better one:
How?
Cat 🐈 cat 🐈 cat 🐈cat cat 🐈
E=mc²
😂 😂 😂 😂
egg = mc²
🥚=🐁🐈🐈
I was about to drop science class and shift to humanities when I first saw this
Oh! Never knew that the M represents the change in mass of the object. Amazing ❤
Me dumb. Me not unsderstand. Me watch again.
I just 13 and I seriously want to now and I will never give up (evil laught )
Bad for my Sorry english
+YSC You meant "sorry for my bad English". Me Tarzan. You dumb.
I think this really requires some previous understanding of physics. And since I forget all my high school physics I imagine that means I'm screwed.
Tinha que ser br kkkkkk
i completely understood all of this. Also, I am a liar
So what if you lied about being a liar.
+Rav That's literally impossible, I believe
James McCloskey Technically, it's a paradox, lol.
okay. Then derive where he got E*(1+ v^2/2c^2) from?
Point me to a person that isn't.
Amazing how he came up with this just by imagining a scenario
I just understood now... It took me a lot time and dedication but I finally understood that Einstein loved Cats.
This guy's equation( rather videos) will forever be remembered as "The Cat equations"
In the mean time in heaven-
Schrodinger: That's my boy
Pavlov: how 'bout mine?😂
Didn't know even Nepalese are interested or most of them are busy 'rote learning'
@Floofy shibe so?
Schrodinger: and... that's not my boy
Remember when we made it illegal to use Guinea pigs for experiments? I think cats should have the same treatment too
My knowledge before watching this vid: 0
My knowledge after watching this vid: 0
Law of conservation of energy and mass :-)
You're wrong. After watching, it must be 00 since you gained another 🅾.
I understood it perfectly after watching it over and over again
-0
Get a brain😂
Great video. I'd have lots of question if I was travelling in space and saw a radioactive cat emittng light whilst floatin, but, anyway, great explanation.
I really like your usual video format, but I could really use more info
1:26 "But, this is silly!"
No, silly would be me thinking I could somehow comprehend any of this.
A radioactive cat? It must have 18 half-lives then...
2/10
d Kim No, 18, not two tenths.
I like your sass: 12/10
Half life 18 confirmed
Hahaha! Good one!
Very concise and intuitive explanation
I finally understood this video after watching it for the fifth time and it was like I reached enlightenment.
I know this is some relativity no sense but how does the car have KE when the spaceship is the thing that moves.
@@yess.6558 Because movement is relative. From the cat's point of view, the spaceship is moving, and it has kinetic energy, whereas the cat has none.
But from the spaceship's perspective (which is the one in the video), the cat is moving, and so it has kinetic energy. The spaceship has none.
Energy is observer dependent. Different observers will disagree on energy values. What Einstein did, was cleverly exploit all that he had calculated about how energies as measured by different observers are related, to deduce that the MASS of the cat must have changed after sending out the light flash.
@Daffa Mutaqin Tetaputra He just divided the whole equation by v²/2. (The c² is still there, and ultimately makes its way to the other side as E=Mc²)
@@jimmyb998
WHY THE ULTIMATE, TOP DOWN, AND CLEAR MATHEMATICAL UNIFICATION REGARDING PHYSICS/PHYSICAL EXPERIENCE IS F=MA AS E=MC2, AS ELECTROMAGNETISM/ENERGY IS GRAVITY:
E=mc2 IS F=ma. Gravity IS ELECTROMAGNETISM/energy, AS the Earth AND the Sun are CLEARLY linked AND BALANCED opposites; AS E=mc2 IS F=ma. ACCORDINGLY, the stars AND PLANETS are POINTS in the night sky; AS the MIDDLE DISTANCE in/of SPACE is linked AND BALANCED to/with/AS what is the FULL DISTANCE in/of SPACE !!! This necessarily represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE, AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. ("Mass"/ENERGY IS GRAVITY. ELECTROMAGNETISM/ENERGY IS GRAVITY.) Gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravitational force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. (The sky is blue, AND the Earth is ALSO BLUE !!!) Great. Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black. INSTANTANEITY is thus FUNDAMENTAL to what is the FULL and proper UNDERSTANDING of physics/physical experience, AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. SO, time DILATION ULTIMATELY proves (ON BALANCE) that ELECTROMAGNETISM/energy is gravity; AS E=MC2 IS F=MA. It ALL CLEARLY makes perfect sense. Indeed, BALANCE and completeness go hand in hand. Great !!! TIME is NECESSARILY possible/potential AND actual IN BALANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY; AS E=MC2 IS F=MA !!!
Gravity IS ELECTROMAGNETISM/energy. E=mc2 IS F=ma. Accordingly, the rotation of WHAT IS THE MOON matches it's revolution. Objects fall at the SAME RATE (neglecting air resistance, of course), AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY !!! WHAT IS THE EARTH, WHAT IS THE MOON, AND WHAT IS THE SUN ARE clearly F=ma AND E=mc2 IN BALANCE !!! Again, this NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE; AS ELECTROMAGNETISM/ENERGY IS GRAVITY ON BALANCE !!! LOOK around. Think !!! Great !!! ("Mass"/ENERGY IS GRAVITY. E=MC2 IS F=ma. ELECTROMAGNETISM/ENERGY IS GRAVITY.) The Earth (A PLANET) is a MIDDLE DISTANCE form that is in BALANCED relation to the Sun AND the speed of light (c), AS the stars AND PLANETS are POINTS in the night sky; AS E=mc2 IS F=ma.
By Frank DiMeglio
CAT CAT CAT CAT CAT CAT E=MC2
@9 Jordan8 widemon10 TF do you want with this ancient comment?
I like how the videos explaining the most complicated stuff in the universe are always the quickest and shortest. Way to go 👏👏👏
egg = mc²
This is special relativity. It doesn't use very advanced math.
So as long as your are comfortable with math up to grade 10 you can realatively easily understand all the formulas and proofs of special relativity.
General relativity is way more advanced and even Einstein didn't understand all of it. That's why the Mathematician (Minkovski) helped him.
@@sebastianjost it uses lots of vectors and math like that right? In Canada you don't learn vectors in school until the 12th grade
@@sebastianjost Since gravity cannot be shielded (or blocked), it has to be fundamentally BALANCED with (or equivalent to) what is ELECTROMAGNETISM/energy regarding what is invisible AND VISIBLE SPACE in BALANCE.
This CLEARLY explains the fourth dimension AND the term c4 from Einstein's field equations (along WITH E=mc2 AND F=ma). Indeed, consider what is a TWO dimensional surface OR SPACE ON BALANCE. (So, ON BALANCE, consider what is THE EYE.) The stars AND PLANETS are POINTS in the night sky ON BALANCE, AND consider what is the speed of light (c) ON BALANCE. It ALL CLEARLY makes perfect sense ON BALANCE, as BALANCE AND completeness go hand in hand. BALANCED inertia/INERTIAL RESISTANCE is fundamental (ON BALANCE).
By Frank DiMeglio
Boris Stoyanov is a super bright and an HONEST physicist. He has agreed that the following writing (and I quote) is "crystal clear":
"ELECTROMAGNETISM/energy is gravity. This is proven by F=ma AND E=mc2. Accordingly, gravity/acceleration involves balanced inertia/inertial resistance; as ELECTROMAGNETISM/energy is gravity. "Mass"/energy involves balanced inertia/inertial resistance consistent with/as what is balanced ELECTROMAGNETIC/GRAVITATIONAL force/energy, as electromagnetism/energy is gravity. Gravity IS electromagnetism/energy. That objects fall at the same rate (neglecting air resistance, of course) PROVES that ELECTROMAGNETISM/energy is gravity. Think about it.
By Frank DiMeglio”
Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE on balance, as ELECTROMAGNETISM/energy is gravity ON/IN BALANCE. This explains F=ma AND E=mc2. This ALSO explains why the rotation of WHAT IS THE MOON matches it's revolution. Inertia/INERTIAL RESISTANCE is proportional to (or BALANCED with/as) GRAVITATIONAL force/ENERGY, as ELECTROMAGNETISM/energy is gravity (ON/IN BALANCE). This explains F=ma AND E=mc2. I have truly (and fundamentally) revolutionized what is our understanding of physics/physical experience.
By Frank DiMeglio
The following provides overwhelming, CLEAR, BALANCED, precise, consistent, additional, and extensive proof that I have now mathematically unified physics. (I have surpassed Newton and Einstein.) My answer to Why is it that only Dongfang can perfectly realize the unity of macro and micro quantum theory and prove that LIGO's gravitational waves are lies (ORCID)? Frank DiMeglio's answer to Why is it that only Dongfang can perfectly realize the unity of macro and micro quantum theory and prove that LIGO's gravitational waves are lies (orcid.org/0000-0002-3644-5170)? in Historical Physics
@@sebastianjost c squared CLEARLY represents a dimension of SPACE ON BALANCE.
By Frank DiMeglio
Some time ago I watched another video with a proof of e=mc2 by you which I thought was better, and simpler, but now I cannot find that video anymore. Can you please give me the link to that one.
I feel cat has always been a part of science and physics as a cat is here and Schrödinger's CAT🤣🤣🤣
Schrodinger designed the Cat thought experiment to criticise the Copenhagen interpretation
I am pretending that I understand this to feel smart. =)
Do you think that even the makers of this video understood it?*
Poontang_Pounder Yes.
No, it's mathematics and makes complete sense. It has been supported by experimental evidence.
^ pretends he understands to feel smart
I used a calculator for 10+12 in a test just to be sure.
Mohd Afiq
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in calc and still do that ngl
Btw it's 22
@@bottlebeardno it’s 21
E=MC² (Energy equals mass, times the speed of light squared.)
As elementary as this is, I feel like I need to dive a lot deeper to fully understand every aspect of it. Loved the video!
Well, the background music was a good choice because that's all I heard in my head while trying to understand this. Just gotta keep truckin' til it goes in.
You have to make longer videos. I had to watch this video like 666 times to understand this...
He says 7,000,000 words a second
Landau Martin
His lips move at 99.99999% the speed of light
if you travel in a spaceship that travel fast enough, the video will slow down
._. but then i would have to bring the computer with me, and it wouldn't slow down...
You got a point
Now I feel like I understood more in "Rap god" than this ;)
Something's wrong, i can feel it
@@mayankjain04 something is about to happen but I don't know what 😂😂
@@ronish4312 Just a feeling ive got
well that atleast seemed pretty easy!
Nice work!
I'm just glad you specified it was "mid-1905". Had it been early or late 1905, well...
I didn't get all of this, please speak faster next time
Finlay McEwan do mean talk slower
Lol he is being sarcastic because it's hard to understand when he is speaking fast.
+trmbne2014 NO WAY
Finlay I will not get it even if I watch this at 1/4 speed.
Play at .75 speed
Who else came to this video with lots of expectations and went back with an empty head 😂😁
Anubhav Chandrakar me
me
Not me
Video obviously designed to be confusing. Guy just wanting to show off.
@@guriaquedanca It's a 2 minute video, what did you expect?
Thank you for explaination🧐😊👍
Makes sense!!! Thank you! 💯🤍🪐📡
And I though E was the short form of einstein
einstein=minecraft^2
@@johnjonjhonjonathanjohnson3559 Einstein = Moustacheˆ2
Energy=mass•the speed of light²
@@nauka7565 genius 👏
@@nandhakishor103 is that a sarcasm? xD
.....um yeahh..i dont get it
Title: "Energy, Mass, and Light: An Exploration of Fundamental Concepts"
Abstract: This paper explores fundamental concepts related to energy, mass, and the nature of light. It delves into the famous equation E=mc^2 and its implications, discussing the energy-mass equivalence principle. Additionally, it examines the concept of light as both wave and particle, discussing its energy, frequency, and speed. The paper also addresses the idea of photons having mass and explores the relationship between energy, frequency, and mass in the context of light.
Introduction: The concept of energy-mass equivalence, as encapsulated by Einstein's equation E=mc^2, is a fundamental principle in modern physics. It states that energy (E) and mass (m) are interchangeable, with the speed of light (c) acting as the conversion factor. This equation has profound implications for our understanding of the universe.
Section 1: E=mc^2
E=mc^2 explains the relationship between energy, mass, and the speed of light.
Mass can be converted into energy and vice versa.
Practical applications and implications include nuclear energy and the mass-defect in chemical reactions.
Section 2: The Nature of Light
Light exhibits both wave-like and particle-like behaviors.
As a wave, light is characterized by its frequency (f) and wavelength (λ).
As a particle, light is composed of photons, carrying energy and exhibiting mass-energy equivalence.
Section 3: Photons and Mass
Photons are associated with a tiny amount of mass due to their energy content.
Calculations for the mass of photons yield extremely small values.
Section 4: Energy, Frequency, and Mass
The relationship between energy, frequency, and mass in the context of light is explored.
The equation E=hf (where h is Planck's constant) is discussed in relation to E=mc^2.
Key Values and Concepts:
Speed of light (c) = 299,792,458 meters per second.
Planck's constant (h) = 6.62607015 x 10^-34 Joule seconds (approximately).
List of Colors and Corresponding Frequencies:
Red Light: Wavelength Range: 620 nm to 750 nm, Frequency Range: 400 THz to 483 THz
Orange Light: Wavelength Range: 590 nm to 620 nm, Frequency Range: 483 THz to 508 THz
Yellow Light: Wavelength Range: 570 nm to 590 nm, Frequency Range: 508 THz to 526 THz
Green Light: Wavelength Range: 495 nm to 570 nm, Frequency Range: 526 THz to 606 THz
Blue Light: Wavelength Range: 450 nm to 495 nm, Frequency Range: 606 THz to 668 THz
Violet Light: Wavelength Range: 380 nm to 450 nm, Frequency Range: 668 THz to 789 THz
Mass of Photons for Each Color (based on energy content):
Red Light: Approximately 5.5217 x 10^-36 kilograms
Orange Light: Approximately 4.4897 x 10^-36 kilograms
Yellow Light: Approximately 3.6565 x 10^-36 kilograms
Green Light: Approximately 2.6649 x 10^-36 kilograms
Blue Light: Approximately 1.6783 x 10^-36 kilograms
Violet Light: Approximately 9.2951 x 10^-37 kilograms
Conversion Calculations:
Conversion of energy to mass: Using E=mc^2, mass (m) can be calculated by dividing energy (E) by the speed of light squared (c^2).
Conversion of mass to energy: Using E=mc^2, energy (E) can be calculated by multiplying mass (m) by the speed of light squared (c^2).
Conclusion: This paper has provided an overview of fundamental concepts related to energy, mass, and light, emphasizing the interconnectedness of these concepts. It highlights the significance of E=mc^2 in understanding the conversion of mass into energy and the role of photons in carrying both energy and a minute amount of mass. Further research and exploration in these areas continue to deepen our understanding of the physical world.
Please note that this summary includes numerical values and lists of colors, frequencies, and corresponding masses, providing a quantitative aspect to the paper's content.
So the KE remains unchanged and Light energy is come from the cat’s mass this I get it but where is c squared come from ? Kinda confuse abt E•(1+v^2/2c^2)how this formula is formed acc to the Doppler effect ?
Tip : watch with speed x0.75 .
watch my maths tricks.
you are dilating time
This is 0.75x for you....but have you asked yourself if that is also 0.75x for us...?🤣🤣🤣🤣🤣🤣
my mind 🤯
his mom was calling that's why he was in hurry
Its so crazy that you can prove this formula algebraically using an anecdote! Never would have thought of combining the Doppler effect and the conservation energy, in order to create a formula for everything!
This leaves me with more questions than before
Instructions unclear. Cat got sent onto orbit
I have a degree in physics and I am going to have to watch that two or a dozen more times.
Pretty sure you don't have a degree in physics then
@@fyu1945 And I am pretty sure that you are a cretin 'cos this is bullshit.
@@fyu1945 I second this
@@fyu1945 i third this
@@fyu1945 i fourth this
As a not native english speaker it's really hard to understand everything in this "fast way" you talk.
Slow it down with the youtube super slomow option.
daBuzzY90 You know that ancient TH-cam video of the kid hopped up on dentist drugs in the car? Henry sounds like that on 0.5x speed.
PhazonSpaceSystems That kid was also in "charlie bit my finger", right?
What you need is "Several minute physics" ;)
***** Besides the fact that my language is not in this list.. you really want me to read the whole subs and watch what happens above them? it's already hard for me to see and understand all the things happening in the video.
You can also derive the same formula by relating it to spring energy. When the spring is compressed, the mass very slightly increases. Why?
That was a great explanation!
All I understood was a psychotic cat roaming around in space 🤣🤣
lol
Yeah
Wait the video has cat ? i though it was rap god
HSHSAHSHSH
I lost you after the word "in"
he lost me at second 1
At 1:49 what does he mean by cancel things out ?? You cant can't cancel v^2 and 2
where did the factor (1 + V*V/2*C*C) come from? That is the key to everything and it popped out of the air.
It is gamma, the Lorentz factor but has been approximating for low velocity compared to light.
the actual form of gamma is 1/sqrt(1-v^2/c^2).
Given the value x= v^2/c^2
Using binomial approximation, sqrt(1-x) = 1-x/2) you get for slow velocity, gamma = 1/(1-v^2/2c^2).
Now, binomial again, 1/(1-x) = 1 + x if x were small.
You get gamma = 1+v^2/2c^2 .
The purpose of finding approximate forms are to simplified the structure of equation to match perfectly with slow velocity and classical kinetic energy.
that cat is going places
the comments are funny af!!
Anyone got the link to the "previous video" he mentioned?
I’ve watched this video 5 times now and understood the equation less and less every time.
This guy doesn’t even want us to understand
He is just showing of
😂😂😂😂😂😂😂
Uh well he tried. It should be fairly simple to understand if you're class 11 or older. But yeah younger than that I'm pretty sure I wouldn't have gotten it
@@vaishaligoel2321 ye exactly
@@vaishaligoel2321 I understood it when I was in 9th bruh, I'm in 11th now(10 boards cancelled YAY)
@@vaishaligoel2321 I'm pretty sure we aren't taught special relativity and Doppler effect of light in class 11th. You can understand everything in the video except the formula :
E' = E(1+v²/2c²)
Listen to the video at 0.5 times speed. Henry's drunk.
Best comment of 2020😂😂😂🤥
Wow! That is a super simple explanation.
I remember deriving that equation many years ago when I was in college. I can't remember exactly how I did it but it was way more complicated than this.
why did he say that the energy of light was spread equally, it seems irrelevant to me
@@antonyxfg8936 it has to do with 1:40, because the velocity will stay the same in both cases when energy is spread evenly and that’s how you eventually will get Einsteins equation
At 1:09 you introduce a formula with c squared. I can see now how the c squared gets into the Einstein equation but… I now have no idea where to look to understand the equation you used to introduce the c squared. Any suggestions on what to search for in Google for this?
Same question😢
May be doppler effect😅
so..... there's a cat floating in space somewhere?
No one:
Absolutely no one
TH-cam recommending me 8 yrs old video 😂😂😂
The Doppler Effect, when you state the energy relation between the energy in the two frames, do you get that via the relativistic doppler effect formula relating the frequencies in the two frames and if so how? I tried taylor expanding in the limit v
I think the correct factor is gamma*(1-beta*cos(theta)) where beta=v/c, gamma =(1-beta^2)^(-1/2) and theta is the angle between the direction of the emitter at the time of emission and the observed direction of the light at the reception.
In the original derivation, Einstein considers two waves of light emitted by a body in opposites directions so the cosines cancel each other, and he obtains that the difference in kinetic energy is equal to the light's energy times gamma-1, and gamma-1=beta^2/2+ o(beta^2).
I should be studying for a Math Test but I'm learning this instead I already understand this more
Me : "oh! A 2 min video that explains einstein's famous equation? That's awsome!"
*After watching the video*
Also me : "Well, I think I was wrong"
Einstein see this video
And forget
How he proove this equation 😂😂
egg = mc²
Lollllll🤣🤣🤣
never in my life before have I watched one video so many time in so little time
This literally answered my question