@@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 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???
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
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.
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
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.
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!
1:30 Is it an assumption that the total energy change of the cat is the same in both scenarios? If not, then why? After all, in the first scenario the total energy change from both emitted radiation and kinetic energy is entirely measured in a frame moving with velocity v relative to cat while in the second scenario, the total energy change is measured using TWO frames , one frame at rest when measuring emitted energy from cat and then the kinetic energy is measured in a frame moving at constant velocity v relative to cat.
Let me explain this in a better way. instead of saying that i saw the cat emit photons and then got into the spaceship, lets say that there are two observers( me and my bro). lets say me and the cat are both at rest while my bro is travelling at a spaceship. After i see the cat emit photons i get into my bro's spaceship. on the other hand my bro had been on the spaceship from the very beginning. so when he saw the cat emit photons, the cat was still moving with respect to him. right now me and my bro are both in the spaceship meaning our frame of reference are the same. so we must see the cat having the same amount of energy. thats why the 1st equation that described the cat's energy from my pov for the entire experiment must be equal to the 2nd equation that described the cat's energy from my bro's pov for the entire experiment. if you want to understand anything else about this video feel free to ask
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 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
Photon has speed limit if it is alone but in huge amount it can increase its speed. To remember. 1. For something to oppose something, they should exhibit or made up of same basic materials. For eg. Only the positive mass can repel positive mass. Or imagine 🧲 magnet with two similar pole. Let's imagine a scenario , A) Ball(having mass 'm') has speed limit because of air.(terminal velocity) Here both air and ball has same properties i.e. mass and occupy same space. Scenario 1. Ball falls down on earth with initial velocity=0. at some velocity it reaches terminal velocity called " C " because of opposing force which later equals to the force exerted by ball (mass 'm') Scenario 2. Ball is thrown by a person vertically downward . At first, the ball(m) velocity will increase greater than terminal velocity 'C' but afterwards it will come back to the speed of terminal velocity 'C' since the air limited to that area needs more time to oppose that additional energy in ball than in scenario 1. B) Let's increase the mass of the ball (i.e increase the number of atoms in the ball) I.e. (m+1) Scenario 3. the ball (m+1) will fall down with initial velocity '0'. But here since the mass of the ball is increased but the amount of air remains the same, the ball will have increased terminal velocity 'N' N > C 1.This means that for the light to have constant velocity, there must be some small particle (smaller than light) having same properties as that of light in the so called vacuum. 2. We can increase the velocity of light similarly by adding the similar properties properties that made the light.
Mohd Afiq If you are a physics geek and love to learn new and interesting theories describing universe than do watch this Nova model, a theory giving end to singularity, answer to infinity and to so many other questions of universe which you would love to know.. So watch till end and join our journey to know all about universe that will fascinate you😊 😊th-cam.com/video/33bKztHBFFA/w-d-xo.html If you find something very new and interesting then do like, share and subscribe😊😊 The world of Nova welcomes 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?
Simple Explaination of the video as I understood it: 0:15 Cat's Energy is converted into light energy of amount E. 0:41 Relativity observation, you probably understand this. It is just a viewer observation which is a part of Relativity. 0:44 Cat has energy since from your point of view it is moving and hence has kinetic energy. The kinetic energy converts into light energy meaning Energy of cat= KE-E 1:08 Doppler effect which is relativistic light energy 1:12 Recap of every scenario we have created yet. 1:31 Law of conservation of energy 1:49 Simplification 1:57 E=Mc²
José Santos You could bring your computer sufficiently close to a black hole, with the computer closer to the black hole than you are. Assuming you and your computer survive the tidal forces, time will be faster for you than for the computer, so that the video will be in slow motion. Obviously, this is the simplest solution to your problem.
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 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)
i loved his explanation, and I'm so surprised how a high school student like me, at the peak of its 16, could get this. I love physics, damn. Hope I get good grades on ENEM e.e
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?
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?
well, this video hardly explained a thing about the eqution, it was just a simple way to tell a little about the equation's theoretical aspect to general audience and einstein wrote a whole theory of relativity in 10 years not just 1 equation.:)
Having read Einstein's paper a long time ago, I recall that his explanation was a lot easier to follow, and it didn't need to introduce silly objects like spaceships or a cat. Nice attempt, but I think your derivation is too fast, doesn't explain the fundamental concepts enough, and has superfluous elements on top. Redo it at once.
yanxtar Um, I was just startled at the randomness of your comment you moron. And by the way, I'm not a liberal so stop jumping to conclusions you dipshit.
You should put a disclaimer that this is more of a illustration of the concept, rather than a real proof. Both the equations of the kinetic energy and doppler effect are not the correct equations. You only used your equation for the doppler effect such that it has the desired outcome, rather than that it is physically correct.
That makes sense. I tried to redo the calculation with the relativistic kinetic energy instead of the classical, but kept everything else the same, and found that it didn't work. I just assumed that the Doppler shift in the video was correct. Now that you say it's not, I'm guessing there was a gamma in the Doppler shift factor that Minute Physics Taylor-expanded for small v (because I recognize the 1 + e²/2 signature of the expansion of gamma to second-order of e). Then with that gamma expanded for small v, he had to use the expanded (i.e., classical) kinetic energy. Is that what happened?
you know what was truly amazing about Einstein, that he did all this before the 1st self-propelled aircraft flight( Aurel Vlaicu 1906) witch is mind blowing
***** the year was 1905, before WW1 and WW2 :) I made just a analogy... my point was how could someone though about the things he did like the mass of a star banding the space around it, mass and energy being equivalent... when we(as a species), couldn't even fly :))
There are several principles involved when Einstein tried to find out light relative to motion. That's how I understand it: (1) Light speed stays constant (2) By principle of relative motion in constant speed, there is no way you can detect your own motion in your own frame of reference, otherwise you can measure the change in speed of light to determine your motion (i.e. light is not the absolute reference frame in the universe where you can detect your own motion WITHOUT another reference frame). Thus speed and time dilation occurs. (3) Applying to motion about the speed and time dilation, when an object approaches to speed of light, it appears to get heavier and heavier, as though there is an inherent resistance which you need energy to overcome (4) The energy of the moving mass is then found to have 2 parts - one part involving just mass and light speed (mc^2), the other is the kinetic energy. Take away the kinetic energy (i.e. the object is stationery), and then you have E=mc^2
***** contant speed of light in relativity is an assumption, not principle. not proven but taken granted in special relativity. in other word, whole theory would fail if this assumption turns out to be incorrect.
larrybardo Except that the consequences of the theory have been confirmed repeatedly for 100 years, which leads to a very strong suspicion that the postulate of the theory must be right. If the assumption were wrong, the whole theory would have already failed by now. Plus, Michelson-Morley fail to find any difference in light speed, and pion decay confirms that speed of light is independent of motion of source.
Andrew M Much like Newton's classical mechanics, theory of relativity leads to some confirmation but not all. This theory is usable but not perfect. There are many problems with this theory. We need a new theory to replace Classical Mechanics. We also need a new theory to replace Relativity. String Theory is a candidate but it is doomed on its extra dimensions E=mc2 is not from Einstein. Do you know who created it in 1907? This equation was not popular until 1945. What made it popular?
Marco P I can never get this fit in my head. This guy have a channel called MINUTE physics, and still each and every video people are complaining that it's hurried. READ THE TITLE. If you want more in-depth, there's plenty of full lectures in youtube as well. Go watch MIT OpenCourseWare, it's not hurried. Just leave MINUTE physics alone of this.
Near the end of the video he finishes with E/c^2 = m1- m2. Now he says it’s change in mass but if the mass doesn’t change then he would have 0 for mass and therefore E = 0, which wouldn’t make any sense. Is it because to maintain the conservation of energy, the loss of energy must either come from the difference in velocity or a change in mass? Additionally if the object that we are talking about in this case the cat, loses mass to account for the loss of energy, how exactly is that mass lost? Does it get destroyed? What kind of force applies onto the body? Can someone (who really knows about the subject) explain this please?
Following on, at 1:49, Ev^2/2c^2 + 0.5*m2*v^2 = 0.5*m1*v^2 Ev^2/2c^2 = 0.5*m1*v^2 - 0.5*m2*v^2 Ev^2/2c^2 = 0.5*(m1-m2)*v^2 Now the LH v^2 and the 2 can be cancelled out with the RH v^2 and 0.5 respectively.
@@Project_Kritical its those people who sees this comment And be like " OMG HAHAHAHA VERY FUNNY THANKS MAN HAVE YOUR LIKE" They must be living in a rock the past year
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 ?
Well, that equation only applies to objects that aren't moving. He made a video on it. This is a proof, and also applies to the equation accounting for movement.
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'm in grade 5 and I asked my teacher what e=mc2 means out of the blue. And I screwed myself up she said "since you ask a lot of questions, it's your homework to find it out and tell the WHOLE CLASS". And she was serious. Then I watched this video and it helped me a lot so thx and everyone will think I'm real smart... And it's time to go back to video games 😎. Thx again
@@zoltankurti No just because he used an equation from Newtonian mechanics in Relativity does not mean it is wrong. You just can't say that everything from Newtonian mechanics is wrong, they are just approximations and are 100% accurate only when it is used for fundamental purposes, like in this video. Equations from any part of physics are universal.
@@78anurag but you shouldn't trust a relativistic conclusion from non relativitic formulas. It works the other way around, non relativistic conclusions are ok from relativistic formulas, other way around no one can guarantee you are right.
The equation says about the number of possible distributions for matter. Max is when c. Matter always tends to separate to lower the energy content. Strings are possible forms. Ordinary normal bell curves are about matter forms. Extremity is about pi. 2 pi is about chemical reactions.
How do you get the E(1-[v^2/c^2]) for the second energý? I can´t seem to find that one and I´d love to follow that step (The rest I believe I´ve got it)
Same! Many people say they don't understand this, but that's just because they watched it once. But I continued watching, paused the video, and processed the thought experiment in my mind and I got it. But somehow this relativistic doppler effect doesn't seem to be that famous, even though Einstein derived E=mc^2 from that.
@@vedantsridhar8378 here, I can do one better. Anybody who said they understood the video successfully decived themselves. That is because this video has multiple mistakes in it which cancel out. Kinetic energy is not 1/2mv^2 in relativity, and the doppler shift is similarly incorrectly calculated in the video.
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 is staggeringly simple for such a huge discovery. Makes me wonder what else we've missed. Maybe people are too focused on the complicated stuff that they don't look at the simple stuff and see what they can derive from it. I'm sure people do look at it, but maybe not enough people do.
You lost me at radioactive cat. I caught up a little at rocketship but the you lost me when you went back to the radioactive cat. What was the point of the cat?!
Greg. Sym. It's any object that emits a particle. The cat and spaceship can be substituted for a) any particle emitting object and b) the observer, respectively. It's just the minutephysics guys creating a hypothetical situation that we could relate to more as non-physicists.
***** 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.
It is an awesome video. By far the simplest and the easiest way to come to realize the equation. But i was a bit not satisfied with the approximation of relativistic Doppler effect you took into account. Where does that term (1+v^2/2c^2) come from??
Now every one has understood that energy you put into this video is equivalent to the knowledge that gained to the viewers was equivalent, it's like the knowledge of urs energy u trying to explain = knowledge of viewers to process is always relatively equal but in different perception and multitudes as same as our star galaxies with infinite ♾
The teacher: Any questions?
Me: Yeah, what the fck?
Mafumafu?
@3.142 *proceeds to eat*
@3.142 3.14159265358979
I hate you 💀
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???
Cat is the new SI unit for everything
XSKY true
😂😂😂😂
Ikr
Bitch
@@mdyusufzaman9356 LOL
Just when I was about to crack the code with the cat he moved on to a freakin' spaceship.
Hhaahahahahahahahah
Omg right hahahaha
🤣🤣🤣🤣
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
"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 🌎
I understood this perfectly. After watching it twice. After having done a General relativity course.
Yashodhan Manerikar this is special relativity tho lol
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.
@@Yashodhan1917 if you are a physics major and you didn't find this video wrong, shame on you.
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
I fully agree... (not an absolute clue)
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.
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 👌
*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!😅
Teacher: How could you not understand, the instructions were clear
The instructions:
Loll
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
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
Before: hope could understand more
After: cat, energy, spaceship
😂😂🤣
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
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
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
This is beautiful! I love how you do not need to use any calculus, as well as how short it is
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.
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.😂
I have one question:
WHAT?
What what ?
What what?
It just works
ı have better one: why ?
I have an even better one:
How?
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.
1:26 "But, this is silly!"
No, silly would be me thinking I could somehow comprehend any of this.
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😂
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!
1:30 Is it an assumption that the total energy change of the cat is the same in both scenarios? If not, then why?
After all, in the first scenario the total energy change from both emitted radiation and kinetic energy is entirely measured in a frame moving with velocity v relative to cat while in the second scenario, the total energy change is measured using TWO frames , one frame at rest when measuring emitted energy from cat and then the kinetic energy is measured in a frame moving at constant velocity v relative to cat.
Let me explain this in a better way.
instead of saying that i saw the cat emit photons and then got into the spaceship, lets say that there are two observers( me and my bro). lets say me and the cat are both at rest while my bro is travelling at a spaceship. After i see the cat emit photons i get into my bro's spaceship. on the other hand my bro had been on the spaceship from the very beginning. so when he saw the cat emit photons, the cat was still moving with respect to him. right now me and my bro are both in the spaceship meaning our frame of reference are the same. so we must see the cat having the same amount of energy. thats why the 1st equation that described the cat's energy from my pov for the entire experiment must be equal to the 2nd equation that described the cat's energy from my bro's pov for the entire experiment. if you want to understand anything else about this video feel free to ask
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.
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.
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
Photon has speed limit if it is alone but in huge amount it can increase its speed.
To remember.
1. For something to oppose something, they should exhibit or made up of same basic materials. For eg. Only the positive mass can repel positive mass. Or imagine 🧲 magnet with two similar pole.
Let's imagine a scenario ,
A) Ball(having mass 'm') has speed limit because of air.(terminal velocity)
Here both air and ball has same properties i.e. mass and occupy same space.
Scenario 1.
Ball falls down on earth with initial velocity=0. at some velocity it reaches terminal velocity called " C "
because of opposing force which later equals to the force exerted by ball (mass 'm')
Scenario 2.
Ball is thrown by a person vertically downward .
At first, the ball(m) velocity will increase greater than terminal velocity 'C' but afterwards it will come back to the speed of terminal velocity 'C' since the air limited to that area needs more time to oppose that additional energy in ball than in scenario 1.
B) Let's increase the mass of the ball (i.e increase the number of atoms in the ball)
I.e. (m+1)
Scenario 3.
the ball (m+1) will fall down with initial velocity '0'.
But here since the mass of the ball is increased but the amount of air remains the same, the ball will have increased terminal velocity 'N'
N > C
1.This means that for the light to have constant velocity, there must be some small particle (smaller than light) having same properties as that of light in the so called vacuum.
2. We can increase the velocity of light similarly by adding the similar properties properties that made the light.
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
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
+Rav That's literally impossible, I believe
okay. Then derive where he got E*(1+ v^2/2c^2) from?
Point me to a person that isn't.
Rogun987 lmao
E=MC^2
th-cam.com/video/xkkT-uUhIqg/w-d-xo.html
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.
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
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?
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
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?
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
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
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
Simple Explaination of the video as I understood it:
0:15 Cat's Energy is converted into light energy of amount E.
0:41 Relativity observation, you probably understand this. It is just a viewer observation which is a part of Relativity.
0:44 Cat has energy since from your point of view it is moving and hence has kinetic energy. The kinetic energy converts into light energy meaning Energy of cat= KE-E
1:08 Doppler effect which is relativistic light energy
1:12 Recap of every scenario we have created yet.
1:31 Law of conservation of energy
1:49 Simplification
1:57 E=Mc²
You have to make longer videos. I had to watch this video like 666 times to understand this...
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
José Santos You could bring your computer sufficiently close to a black hole, with the computer closer to the black hole than you are. Assuming you and your computer survive the tidal forces, time will be faster for you than for the computer, so that the video will be in slow motion.
Obviously, this is the simplest solution to your problem.
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)
... Am I the only person here that actually thinks this was a great explanation and that he doesn't talk too fast?
Michael Farník how's it feel like being the only one?
you're probably in touch with something physical in university or knew this before, cuz i'm not and I couldn't understand a damn thing
i loved his explanation, and I'm so surprised how a high school student like me, at the peak of its 16, could get this. I love physics, damn.
Hope I get good grades on ENEM e.e
Felipe Viegas Same for me I'm 17 and we just learned the doppler effect at highschool so I get along :p
Learned that in France and this is still right on the other side of the Atlantic, amazing science ;)
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😅
Cat 🐈 cat 🐈 cat 🐈cat cat 🐈
E=mc²
😂 😂 😂 😂
egg = mc²
🥚=🐁🐈🐈
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!
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"
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?
Albert Einstein:So my ten years observation is just a 2:11 minute video.
To be fair finding a new groundbreaking equation is a lot harder than explaining it to a general audience
2:11 minute video where I didn't understand anything!
Edit: I understood it at last after watching it the 15th time
well, this video hardly explained a thing about the eqution, it was just a simple way to tell a little about the equation's theoretical aspect to general audience and einstein wrote a whole theory of relativity in 10 years not just 1 equation.:)
Einstein would be very happy with that. He dreamed about finding an elegant little equation that explains how nature works.
😂😂😂😂
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
From where did that doppler effect equation come from?
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.
Having read Einstein's paper a long time ago, I recall that his explanation was a lot easier to follow, and it didn't need to introduce silly objects like spaceships or a cat. Nice attempt, but I think your derivation is too fast, doesn't explain the fundamental concepts enough, and has superfluous elements on top. Redo it at once.
yanxtar What in the hell?
yanxtar Um, I was just startled at the randomness of your comment you moron. And by the way, I'm not a liberal so stop jumping to conclusions you dipshit.
Alfredo Rodriguez Obama is just a hologram and 9/11 was the best broadway show imo can't believe so man
yanxtar Obvious troll is obvious.
ye u are
Me: Wow thanks for all the knowledge and answers you gave me.
Also Me: Does breed of the cat matters?
But you are just a cat 🐈 🐈 🐈🐈🐈🐈.
The cat must be radioactive 😎😎
No one:
Absolutely no one
TH-cam recommending me 8 yrs old video 😂😂😂
Now this Einstein's nephew made it more hard to comprehend.welldone.
CAT CAT CAT CAT CAT CAT E=MC2
@9 Jordan8 widemon10 TF do you want with this ancient comment?
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
There is a new most famous equasion in the world:
2+2=4-1=3 QUICK MATHS
Wrong 2+2=4
4-1=3 but2+2 does not equal 3
Wtf
CoCANE LorD i mean he’s right the first two equations are not equivalent.
stupid. egg = mc²
Man with all this stupid advanced math's we are learning in school l am gonna forget to do simple equation
Einstein said only a few close to him understood how he came out with the formula ... about 8 scientists ...
You should put a disclaimer that this is more of a illustration of the concept, rather than a real proof. Both the equations of the kinetic energy and doppler effect are not the correct equations. You only used your equation for the doppler effect such that it has the desired outcome, rather than that it is physically correct.
Finally somebody who noticed...
That makes sense. I tried to redo the calculation with the relativistic kinetic energy instead of the classical, but kept everything else the same, and found that it didn't work. I just assumed that the Doppler shift in the video was correct. Now that you say it's not, I'm guessing there was a gamma in the Doppler shift factor that Minute Physics Taylor-expanded for small v (because I recognize the 1 + e²/2 signature of the expansion of gamma to second-order of e). Then with that gamma expanded for small v, he had to use the expanded (i.e., classical) kinetic energy. Is that what happened?
Einstein see this video
And forget
How he proove this equation 😂😂
egg = mc²
Lollllll🤣🤣🤣
you know what was truly amazing about Einstein, that he did all this before the 1st self-propelled aircraft flight( Aurel Vlaicu 1906) witch is mind blowing
Yeah, but after the wheel, boats, steam machines, sails, combustion engines, lighbulbs, electricity... So, what's your point?
***** the year was 1905, before WW1 and WW2 :)
I made just a analogy... my point was how could someone though about the things he did
like the mass of a star banding the space around it, mass and energy being equivalent...
when we(as a species), couldn't even fly :))
I should be studying for a Math Test but I'm learning this instead I already understand this more
so..... there's a cat floating in space somewhere?
.....um yeahh..i dont get it
There are several principles involved when Einstein tried to find out light relative to motion. That's how I understand it:
(1) Light speed stays constant
(2) By principle of relative motion in constant speed, there is no way you can detect your own motion in your own frame of reference, otherwise you can measure the change in speed of light to determine your motion (i.e. light is not the absolute reference frame in the universe where you can detect your own motion WITHOUT another reference frame). Thus speed and time dilation occurs.
(3) Applying to motion about the speed and time dilation, when an object approaches to speed of light, it appears to get heavier and heavier, as though there is an inherent resistance which you need energy to overcome
(4) The energy of the moving mass is then found to have 2 parts - one part involving just mass and light speed (mc^2), the other is the kinetic energy. Take away the kinetic energy (i.e. the object is stationery), and then you have E=mc^2
Nice way of understanding the concept. Thanks
I don't actually know whether you're quite right, but that certainly does explain it in a way that's almost understandable. Thank you.
***** contant speed of light in relativity is an assumption, not principle. not proven but taken granted in special relativity. in other word, whole theory would fail if this assumption turns out to be incorrect.
larrybardo Except that the consequences of the theory have been confirmed repeatedly for 100 years, which leads to a very strong suspicion that the postulate of the theory must be right. If the assumption were wrong, the whole theory would have already failed by now. Plus, Michelson-Morley fail to find any difference in light speed, and pion decay confirms that speed of light is independent of motion of source.
Andrew M Much like Newton's classical mechanics, theory of relativity leads to some confirmation but not all. This theory is usable but not perfect. There are many problems with this theory. We need a new theory to replace Classical Mechanics. We also need a new theory to replace Relativity. String Theory is a candidate but it is doomed on its extra dimensions E=mc2 is not from Einstein. Do you know who created it in 1907? This equation was not popular until 1945. What made it popular?
pretty useful.......The subtitles
yesss
I lost you after the word "in"
he lost me at second 1
the comments are funny af!!
why would you go through it so quick like this???
*Minute* Physics
pon33villin 2 Minute Physics
Totally
Marco P I can never get this fit in my head. This guy have a channel called MINUTE physics, and still each and every video people are complaining that it's hurried. READ THE TITLE. If you want more in-depth, there's plenty of full lectures in youtube as well. Go watch MIT OpenCourseWare, it's not hurried. Just leave MINUTE physics alone of this.
He wanted to be minutephysics
Near the end of the video he finishes with E/c^2 = m1- m2. Now he says it’s change in mass but if the mass doesn’t change then he would have 0 for mass and therefore E = 0, which wouldn’t make any sense. Is it because to maintain the conservation of energy, the loss of energy must either come from the difference in velocity or a change in mass? Additionally if the object that we are talking about in this case the cat, loses mass to account for the loss of energy, how exactly is that mass lost? Does it get destroyed? What kind of force applies onto the body? Can someone (who really knows about the subject) explain this please?
Listen to the video at 0.5 times speed. Henry's drunk.
Best comment of 2020😂😂😂🤥
how was the (-E) canceled out at 1:32? also how was v^2 and 2 canceled out in E*v^2/2c^2 at 1:49?
I was looking for the answer to these as well.
not helping
Ok, so first:
-E+EK2 = EK1-E*(1+xxx)
EK2=EK1+E-E*(1+xxx)
EK2=EK1+E(1-1-xxx)
EK2=EK1-E*xxx
E*xxx+EK2=EK1
Following on, at 1:49,
Ev^2/2c^2 + 0.5*m2*v^2 = 0.5*m1*v^2
Ev^2/2c^2 = 0.5*m1*v^2 - 0.5*m2*v^2
Ev^2/2c^2 = 0.5*(m1-m2)*v^2
Now the LH v^2 and the 2 can be cancelled out with the RH v^2 and 0.5 respectively.
@@pavelvrba6415 thanks mate
2012:nope
2013:nope
2014:nope
2015:nope
2016:nope
2017:nope
2018:nope
2019:now its time to place recommedations
Stfu noone cares about these kinds of comments
Gijs van Hulten The 50+ likes say otherwise
@@Project_Kritical its those people who sees this comment And be like " OMG HAHAHAHA VERY FUNNY THANKS MAN HAVE YOUR LIKE" They must be living in a rock the past year
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 ?
No idea what u just said. :)
The "real" equation (more accurate) is actually E^2=m^2c^4+p^2c^2
how do you end up in the full one from the proof giving in this video?
Well, that equation only applies to objects that aren't moving. He made a video on it. This is a proof, and also applies to the equation accounting for movement.
+Fematika that looks confusing
E^2=(mc^2)^2+(pc)^2
pythagoras
Yeah, you can do it that way as well.
How is that gonna help
1:05 damnit, why couldn't i have seen this a week ago when i had a science project on the doppler effect?
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'm in grade 5 and I asked my teacher what e=mc2 means out of the blue. And I screwed myself up she said "since you ask a lot of questions, it's your homework to find it out and tell the WHOLE CLASS". And she was serious. Then I watched this video and it helped me a lot so thx and everyone will think I'm real smart... And it's time to go back to video games 😎. Thx again
everyday gamer919 how'd it go?
Arthur it went went well everyone thinks I'm smart now
Good for you
Keep searching about these categories it will be helpful in the future :)
Eslam Essam he is not telling truth.. did u really get baited ?
everyday gamer919 The teacher probably didn't know the answer and didn't want to admit.
Fascinating, I understood not a single word that came out of his mouth.
Ahh right. This is a genuinely clear (albeit slightly quick) explanation. I was always confused where the c^2 came from. Thank you!
But it couldn't be more wrong. The dormula for kinetic energy and the redshift of the light are both wrong.
@@zoltankurti No
@@78anurag yes they are, he used nonrelativistic formulas to get a result from relativity. It's just a coincidence he got the right equation.
@@zoltankurti No just because he used an equation from Newtonian mechanics in Relativity does not mean it is wrong. You just can't say that everything from Newtonian mechanics is wrong, they are just approximations and are 100% accurate only when it is used for fundamental purposes, like in this video. Equations from any part of physics are universal.
@@78anurag but you shouldn't trust a relativistic conclusion from non relativitic formulas. It works the other way around, non relativistic conclusions are ok from relativistic formulas, other way around no one can guarantee you are right.
The equation says about the number of possible distributions for matter. Max is when c. Matter always tends to separate to lower the energy content. Strings are possible forms. Ordinary normal bell curves are about matter forms. Extremity is about pi. 2 pi is about chemical reactions.
Me before watching this video: oh boy I hope I can prove E=mc^2
Me after watching this video: oh boy I hope I can prove E=mc^2
How do you get the E(1-[v^2/c^2]) for the second energý? I can´t seem to find that one and I´d love to follow that step (The rest I believe I´ve got it)
Same! Many people say they don't understand this, but that's just because they watched it once. But I continued watching, paused the video, and processed the thought experiment in my mind and I got it. But somehow this relativistic doppler effect doesn't seem to be that famous, even though Einstein derived E=mc^2 from that.
@@vedantsridhar8378 here, I can do one better. Anybody who said they understood the video successfully decived themselves. That is because this video has multiple mistakes in it which cancel out. Kinetic energy is not 1/2mv^2 in relativity, and the doppler shift is similarly incorrectly calculated in the video.
I have one question: May i go to the bathroom please?
Yes you have permission you can go
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.
Actually the most famous (and important) equation is:
the answer to life, the universe and everything else = 42
the equation is incomplete,
its 42--0 blaze it
What do you get when you multiply six by nine? Forty-two.
Um, do you mean 6*7?
42 = (sqrt(life)*sqrt(universe)^sqrt(everythingelse))^2/everythingelse
I have no idea what I just did :)
+Mark1nc Nah, in The Restaurant at the End of the Universe, there's a part where it's six×nine. I assume you haven't read it?
That is staggeringly simple for such a huge discovery.
Makes me wonder what else we've missed.
Maybe people are too focused on the complicated stuff that they don't look at the simple stuff and see what they can derive from it. I'm sure people do look at it, but maybe not enough people do.
It isn't simple. The video presented many incorrect statements.
You lost me at radioactive cat. I caught up a little at rocketship but the you lost me when you went back to the radioactive cat. What was the point of the cat?!
Greg. Sym. It's any object that emits a particle. The cat and spaceship can be substituted for a) any particle emitting object and b) the observer, respectively. It's just the minutephysics guys creating a hypothetical situation that we could relate to more as non-physicists.
The most important question here is.... How did the cat got up there???
prophetoffun yes, because people regularly see cats randomly emitting light on a daily basis :P
+Greg. Sym. nyancat
+Greg. Sym. the cat being radioactive was the confusing part
The handwriting and doodles in the minutephysics videos are so much like my own that it's really freaking me out!
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.
It is an awesome video. By far the simplest and the easiest way to come to realize the equation.
But i was a bit not satisfied with the approximation of relativistic Doppler effect you took into account. Where does that term (1+v^2/2c^2) come from??
fucking show off
Willson Basyal i think it's from Lorenz transformations, specifically Lorenz length contraction
People who get it love it when people say this
Daniel Hsu exactly!!
wait.. how is he a show off??
Need to proof relativistic doppler formula first.
for me tooo
Now every one has understood that energy you put into this video is equivalent to the knowledge that gained to the viewers was equivalent, it's like the knowledge of urs energy u trying to explain = knowledge of viewers to process is always relatively equal but in different perception and multitudes as same as our star galaxies with infinite ♾