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Question, since gravity is determined by the mass of an object, and since e=mc^2 can be arranged to form m=e/c^2, does this imply that an object will have a greater gravitational force and hence will warp spacetime around the object to a greater extent, the greater velocity it has (due to the fact greater velocity implies a greater kinetic energy)? Or am I thinking about it wrong
Hi, as a retired science teacher, I can say that this video is outstanding. It has made the understanding of General Relative easier to get one's head around the concept. Very well done. Nicholas Marino FL.
In the last part, doesn't sarah's clock run faster irrespective of whether adam accelerates or not. I have seen several videos where it says acceleration has nothing to do with it.
Dominic, the videos which say that acceleration has nothing to do with it are only dealing with Special Relativity. I am discussing it from the point of view of General Relativity, which is the more complete theory. I go into the details of this specific issue in my video on the Twin Paradox at ruclips.net/video/bjHLboK2M1g/видео.html
@@EugeneKhutoryansky well I have a question. Why do we think that light's speed is same for all observers. Suppose that I am moving at light's speed now, so I will notice that light has stopped moving. So according to me light's speed is 0 but for other observers on Earth it will be still c. Where am I wrong?
It's actually good to see someone who actually knows what he's talking about doing such an elegant animation. Its been 6 years since I first saw this video. Back then I didn't understand anything. Now, with a physics degree I can appreciate it much better. Seen some of your videos. Please continue.
Everyone, if you liked this video, you can help more people find it in their RUclips searches by clicking the Like button and writing a comment. I will be posting more new physics videos soon, so please subscribe if you want to get notifications when they are ready. Links to some of the videos I have already made are available at the end of the video above. Thanks.
Sarah didn't see the entire Universe accelerate. Therefore, Sarah does not need to believe that there was an extra gravitational force, whereas Adam does need to believe this. Adam will believe that it is this extra gravitational field which caused Sarah to age faster.
Gaurab Bhandari If Adam was travelling at the speed of light then relatively to someone on Earth he will be travelling into future,therefore Sarah would have aged way more than him.
***** this confused me for a long time as well. both observers see each other's clocks run slowly if they are are forever at a velocity close to the speed of light moving away from one another. It is in the acceleration of Adam's spaceship moving from one direction (away) to the other (toward) when Sara's clock begins to speed up. It's not actually 'speeding up' it's a consequence of spacetime.
I remember watching this video as a kid and falling in love with the beauty of physics and the background music, it gave me the inspiration to learn the piano and perfect it. Thank you for that.
@157 157 (James Henderson) I don't understand Maxwell equation but I too have doubt in theory of relativity. Can you please explain me Maxwell equation simply. I am not good at math.
Alper Angın : Here’s my answer to Abdurrehman farooq : Maybe it could be clearer with another extra step: the mirror could be on another spaceship running parallel to Adam’s one.
Wow this is an excellent video. I go to school every day hoping my teacher's would teach me something like this but instead they bore me with the very basics of a plant for e.g label all the parts of a plant. I wish science in schools would be taken more seriously.
Lol there's no practical application for this unless you go into physics, and to actually understand this you'd probably need a few years of fundamental knowledge in physics, stop whining about school. (and maybe take physics instead of biology)
Jayo Caine have a look at Labibs education playlist on my channel, I have made a few videos regarding various aspects of science and then you may understand why I like physics...O and please go easy on me considering I am only eight years old. Thanx.
is it sad tho? its your interpretation of sad. but why do you interpretate these tones as sad? as far as we know there is actually no logic behind it. high slow tones indicate sadness? what in evolution has caused that if thats the case? i wonder.
@@hsaccount_ it's not "high slow tones". Anytime you try to associate an emotion with a rule in art you will find a counterexample. That's the beauty of art, we know if something is beautiful, sad, happy, dark, but we don't know why :)
You can help translate this video by adding subtitles in other languages. To add a translation, click on the following link: ruclips.net/user/timedtext_video?ref=share&v=ev9zrt__lec You will then be able to add translations for all the subtitles. You will also be able to provide a translation for the title of the video. Please remember to hit the submit button for both the title and for the subtitles, as they are submitted separately. Details about adding translations is available at support.google.com/youtube/answer/6054623?hl=en Thanks.
Can I upload it , by editing it in Hindi version. I am ready to share half revenue from all these videos. Because people wants to understand it in Hindi. Really if you agree. Email - kanaujiyavimleshkumar@gmail.com
@@vimleshkumarkanaujiya No, you can not upload copies of my videos. Subtitles are available on my channel in Hindi and in many other languages. To see the subtitles, click on the gear symbol under the video, then click on "subtitles." Then select the language (You may need to scroll up and down to see all the languages available).
Hey. so If I travel at near light speed and time slows from hours to seconds for me ... does my biological body follows the time?. We can't survive without food and water. travelling for an hour at near lightspeed is equal to months on earth. how can my body survive?
I'm pretty sure time will be taken out of Space time. Gravity is just a physical effect on clocks and atoms making us think time has been changed, but it hasn't, as clocks are not the definition of time. Time marches on at a steady rate irrespective of the existence of clocks.
Exactly ten years ago (I was 15 years old), I discovered this video. Before that, I am already interested in sciences and mathematics. After watching the video, I was mind blown and having existential crisis for a few days. From that moment, I started to read a lot of physics book and math book to be able to understand general relativity. I understood special relativity mathematically during my college majored in physics. For general relativity, it took me until now, my math is still not enough to understand it. I am currently a research student doing master degree in quantum dynamical semigroup. Without your video, it is hard to imagine to be able to get to where I am now.
Thanks. I am glad that my video made such a positive impact. By the way, in case you haven't already seen it, I have a video discussing the mathematics of General Relativity (Einstein's Field Equations) at ruclips.net/video/UfThVvBWZxM/видео.html
I don't know if Einstein can taught a 12 year old boy 'What is my theory of relativity'.But you did this . Great job..👌👌👌👌👍👍👍👍.I have never seen a educational video which can teach us this simple.
you're right in my opinion. But i also like Leonard Susskind, Stanford University professor explaining the math: ruclips.net/video/toGH5BdgRZ4/видео.html
Eugene Khutoryansky is humanity's hero! so much time and effort (not to mention sheer brilliance) into making these concepts accessible to the general public!
@@JuankQuinteroMejia From his mind's point of view, the video goes at the speed of light and it's clock moves faster, but from the video's point of view, the video stands still but it's Jim's mind that gets accelerated by a gravitational force.
I love it how you connect your explanations with your atmospheric animations and the calming music. This way those topics regain the beauty that they deserve.
I was like "oh I dont know what the theory of relativity is, Even though I have heard of it many times, I want to know what it is" Holy moly this is heavy stuff! Now I realized why Einstein is a known physicist and not me
this is truly one of the best video on all yt. i regularly come back to rewatch it, again and again, there is something that fascinates me but i can't exactly point out what it is.
Tesla on relativity: “The theory, wraps all these errors & fallacies and clothes then in magnificent mathematical garb which fascinates, dazzles and makes people BLIND to the underlying errors. The theory is like a beggar clothed in purple WHOM IGNORANT PEOPLE take for a king. It’s exponents are very brilliant men, but they are meta-physicists rather than SCIENTISTS. ***NOT A SINGLE ONE OF THE RELATIVITY PROPOSITIONS HAS BEEN PROVED***”
I was directed here by a commenter on a video about Azumanga Daioh (Pico the Spicy Wardlord), as the narrator for this video is the english voice actress for Osaka from said series. In the series, it is loosely implied that Osaka sets out to become a teacher after high school, so it's really cool to see the VA teaching now!
+AWarmCoffee yes dude i saw that movie over 4 time's probably, but cant understand the basic concept, after this presentation i watched another time, and i clearly understood ..
This was the video that got me started on my path to become a theoretical physicist. This video legitimately changed my life! But I have to say Eugene, you’ve improved tremendously on these since you made this. Ever think of remaking this video to remove some of the more whimsical bits or correct sections like the relativistic mass section?
@@seralelix There is nothing "wrong" with the relativistic mass section, but there are many people who think that the concept of relativistic mass should never be used. I discuss this in detail in my video at ruclips.net/video/AU_O9yrgwhk/видео.html
Interesting. Very complex, and to think a man thought of this, and disproved what everyone in that time thought of space it's self. this puts a good visual in my head of his theory, thanks for the video.
An electron gets pulled up for speeding. The officer says "I clocked you at 186,000 miles per second". The electron says "Bloody hell, now I'm lost..."
Over the last year I have become a physics junky. Your videos were some of my 1st inspirations. Thank you for all your hard work! I can't wait for the next one.
I remember seeing this video when it came out, its still so beautiful. Although im even more stumped at how all this works. Anyway thanks for making this amazing video eugene❤
I discovet yout channel yesterday, and running through all the video ! Brillant job! Very educative and visualized ! Keep going it’s fabulous! A french guy
After 4 videos I finally understand it and it explains a lot about space. This video was by far the best as it did not just repeat Einstein's theory but actually explained it in a new modern way
This is one of the best video to explain theory of relativity. I tried many sources to understand but this was the source which made me most nearest to understand Completely
I very much appreciate Eugene for such brilliant content on a topic that so hard to express. And for those of u who are still learning 2D, 3D and Vector Mathematics, just try to parallel transport a vector on the surface of a cylinder and a cone. U will the magic which Einstein fomulated in very complex Mathematics.
something about this video is so erie and mysterious. the music makes it that way.!! not to be overshadowed by the amazing information and knowledge given throughout the video! It is just perfect and i can watch it over and over and over again!!! Love it so much
I watched this video even before my high school and had loved it then. Even now when I'm in university it feels equally intresting and awesome, and this video reminds me of those days. I never thought that a RUclips video could carry so much of nostalgia 😃
Музыка вместе с информацией создают ощущение, в каком удивительном мире мы живём! Music and information in this video makes me feel what's the astonishing world we live!
The first video that started to piece it all together for me; several Stephen Hawking (and other) books later and I still see why this explained it all to me in the first instance. Thanks for uploading.
yes. gravitaion is nothing but a curvature in time space. imagine 4 people holding a bed sheet tightly that it is completely straight. now put 4 cricket balls at all the 4 ends. the balls will not move because the bedsheet is completey straight. but if you put a football in the middle of the bedsheet. the weight of football will create a curvature and all the cricket balls (the smallers particles) will be attracted to it. this force is what we called gravitaional force. the bigger the object the bigger the mass the bigger the curvature and more the gravity. hope you understand now ☺
I also realized I was stupid all these years thinking that relativity was an objective concept. I just realized that Einstein was expert in confusing objectivity with subjectivity. nothing changes in reality to an observer except their personal feelings. Nothing really shrink. what is seen shrunk to one is not seen shrunk in reality. I invite the learned commentators to reject me if you can. will appreciate. Shaw from USA
So let's say we invent a spaceship that can move at the speed of light, that means we can travel from one end to the other end of the universe in one human lifetime or just a few seconds of it while on the earth it seems as we traveled for 93+ billion years right? how do we know the universe is 13.8 billion years old if time is relative? I must have made a mistake here.. right?
No time would have passed if you traveled at the speed of light, at least no time from an observers perspective. Theory indicates time should still pass on the ship, but if time slowed down Infinitely for an observer it is subir for debate as to whether you would experience the time.
Nat King Coules yah u r right the universe is 13.8 billion years old according to our perspective but it might be 10000 times older or just 1 hour old according to different perspectives
Speed of light is constant, everyone teaches bcoz it is a number, 3,00,000km per sec. So long it took to understand the real principle i.e., speed of light watching from different observer is same i.e., same light both observer are seeing as reality. So light is light no more constant number. Thanks🙏🙏🙏
So I have a question, if any one can answer it or point me in the right direction that would be great. In this video when they're talking about some one returning from a high speed journey across the universe and only aging a fraction of what everyone on earth would age. They mention that the person in the space ship, on the way home, would see time on earth passing very quickly because they're traveling at it so quickly. Wouldn't the people on earth also see the space ship's time running very fast because they're seeing the same thing in terms of relativity. And if that's the case then the aging between the people on earth and the person in the spaceship would be equal. Here's how I'm looking at it. In terms of relativity, the people on earth and the person in the space ship are seeing the same thing throughout the entire journey. When the space ship is traveling away from earth, the person in the spaceship is seeing the earth travel away from him just like the people on earth are seeing the space ship travel away from them. On the way back the person in the space ship is seeing earth travel towards them just like the people on earth are seeing the spaceship travel towards them. So wouldn't the aging differences all cancel out?
Honestly this is a great question, because on the surface it does appear that you would be correct. However I have a feeling that our assumptions are probably wrong...we just need someone to explain why we are.
Blake Mcdonald Each person see's the other person's clock as going slower only so long as no one is accelerating. From Adam's point of view, when he tries to turn around, he will think that there is a gravitational force balancing out the force from his rockets, causing him to remain still. From his point of view, this gravitational field will cause Sarah's clock to run faster than his. This is why Sarah and Adam will agree that Sarah is older when he returns.
Eugene Khutoryansky I've had the same question as Blake regarding the canceling out issue since, from each of the two perspectives, the other is aging faster. Your explanation doesn't solve this problem for me. You say that it is because Adam is accelerating to turn around that causes Sarah to permanently age more than Adam. But if everything is relative depending on the viewpoint, couldn't we just as easily say that it is actually Sarah (and the earth) that are accelerating to "turn around" to go back towards Adam (rather than the other way around)? So looking at it from that viewpoint, wouldn't Adam age more than Sarah?
frogsforall What is different in the two cases is that for Adam to believe that he is standing still during the moment he fires his rockets, he needs to believe that there is an external gravitational field during this moment. On the other hand, Sarah does not need to believe that there was ever any external gravitational field, and from her perspective this extra gravitational field never existed. From Sarah’s point of view, she is older when Adam returns because time on his ship slowed down while he was moving fast. From Adam’s point of view, Sarah is older when he returns because there the extra gravitational force caused clocks on Earth to move faster than clocks on his ship. Sarah will not say the same thing about Adam, because from her point of view this extra gravitational field never existed.
Gravitational field or not, unless there is a third point of perspective, in terms of relativity Adam and Sarah are seeing the exact same thing. Noting is standing still in the universe. As Adam fires his rockets, who's to say he isn't just standing still and the earth is moving towards him. For example, if you were swimming against the current in a river and something floating with the current was coming towards you. Without a third point of perspective its impossible to tell who's moving and who's standing still. If thats the case, Adam and Sarah would see the exact same thing. First something traveling away from them, then something traveling towards them. And all aging differences would cancel out. I know you're trying to explain this to us but I still can't see why one would age faster then the other.
Question. You know the movie interstellar? When they went to the planet with the tidal waves closer to gargantua the black hole, they said time will move slower due to the gravity. So let's see you and I were together in a spaceship and I made my way to that planet where every minute goes by 1 year goes by for you. If We set up telescopes and looked at each other through it, would I see you in fast fwd and you would see me in slow motion? Or say we had huge analog clocks; would mine be moving extremely slow and yours would be moving extremely fast when we looked at each other?
Awesome question!! I'm not sure because the light that bounces of you and makes its way to the other person is also influenced by the difference in gravity
Well time is relative to the observer. Meaning that the light that reflects off the telescope would distort it. Theres no way to observe both time frames from one perspective
Such nice animations in the video. The concepts are explained brilliantly well in such a short video. I am a student of BS-Physics and I really find you videos very helpful. Thank you very much teacher Eugene.
This was enlightening. I am still in awe of the fact that you made the explanation of such a complex concept so easy to understand even for a layman. Kudos.
I have been trying to explain this to my wife for years and she could not get it. I convinced her to watch this video, while pausing to answer questions. She finally understands to basic idea of it. Great video on breaking it down for everyday people to understand a lot easier. Thank you. Wish there was a golden like button.
What I love about this unique video is how it addresses both the head and the heart. The melancholic mood reminds me of the weightless scene in Tarkovsky's Solaris (1972). The choice of such a mood makes sense because Adam and Sarah (like Kris and Hari in Solaris) are kept apart by nature's merciless laws. Regarding the depiction of the physics I have just one confusion: why choose a moving mirror at around the 03:00 mark? Why not use a long stretch of a reflective surface (like a frozen lake)? Other than that I have no other confusion. Either way this is the best intuitive explanation of relativity i have ever seen. Thank you.
Thanks for the compliment about my video. I am glad you like it. I wanted to draw a long mirror which didn't have to move, but I wasn't sure how to draw it.
+Jonathan Jacobi I'm really gratefull for the explanation! Very interesting ! However i wished more than a few time during the video there was a stop button allowing me to stop the music and keep the commentary.
Such charismatic music and setting. It would have been a beautiful nostalgia for me had I watched it as a kid. The music is so fitting as it feels as mysterious as the nature of spacetime, or the nature of universe and perception in general. ❤
I'm not very good at explaining things but I'll try my best.....you can figure it like a trampoline.....a heavier object on the trampoline causes the trampoline to bend right(create a depression)? And if you put any lighter object on the trampoline it would go downwards along the depression.....".............so ,,in spacetime(trampoline) an object with heavier mass creates a curvature(depression) which causes objects to go along the depression
To see subtitles in other languages: Click on the gear symbol under the video, then click on "subtitles." Then select the language (You may need to scroll up and down to see all the languages available).
--To change subtitle appearance: Scroll to the top of the language selection window and click "options." In the options window you can, for example, choose a different font color and background color, and set the "background opacity" to 100% to help make the subtitles more readable.
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Question, since gravity is determined by the mass of an object, and since e=mc^2 can be arranged to form m=e/c^2, does this imply that an object will have a greater gravitational force and hence will warp spacetime around the object to a greater extent, the greater velocity it has (due to the fact greater velocity implies a greater kinetic energy)? Or am I thinking about it wrong
No. I cover this in my follow up video at ruclips.net/video/AU_O9yrgwhk/видео.html
@@EugeneKhutoryansky Ah ok, that clears things up. Thanks.
@@TheeDeadCreator k=½mv²
Where k is usually measured in Kg-m²/s².
Thanks
Hi, as a retired science teacher, I can say that this video is outstanding. It has made the understanding of General Relative easier to get one's head around the concept. Very well done. Nicholas Marino FL.
In the last part, doesn't sarah's clock run faster irrespective of whether adam accelerates or not.
I have seen several videos where it says acceleration has nothing to do with it.
Dominic, the videos which say that acceleration has nothing to do with it are only dealing with Special Relativity. I am discussing it from the point of view of General Relativity, which is the more complete theory. I go into the details of this specific issue in my video on the Twin Paradox at ruclips.net/video/bjHLboK2M1g/видео.html
How a retirted becomes a science teacher? America is trully a great country. Every one has chances.
@@ieBrazil he said retired science teacher.
@@EugeneKhutoryansky well I have a question. Why do we think that light's speed is same for all observers. Suppose that I am moving at light's speed now, so I will notice that light has stopped moving. So according to me light's speed is 0 but for other observers on Earth it will be still c.
Where am I wrong?
It's actually good to see someone who actually knows what he's talking about doing such an elegant animation. Its been 6 years since I first saw this video. Back then I didn't understand anything. Now, with a physics degree I can appreciate it much better. Seen some of your videos. Please continue.
Everyone, if you liked this video, you can help more people find it in their RUclips searches by clicking the Like button and writing a comment. I will be posting more new physics videos soon, so please subscribe if you want to get notifications when they are ready. Links to some of the videos I have already made are available at the end of the video above. Thanks.
Sarah didn't see the entire Universe accelerate. Therefore, Sarah does not need to believe that there was an extra gravitational force, whereas Adam does need to believe this. Adam will believe that it is this extra gravitational field which caused Sarah to age faster.
Eugene Khutoryansky Does Adam only see her age faster or is it really the case which, apparently, would mean Adam going into future ?
Gaurab Bhandari If Adam was travelling at the speed of light then relatively to someone on Earth he will be travelling into future,therefore Sarah would have aged way more than him.
Eugene Khutoryansky I really enjoy this videos, keep it up!
***** this confused me for a long time as well. both observers see each other's clocks run slowly if they are are forever at a velocity close to the speed of light moving away from one another. It is in the acceleration of Adam's spaceship moving from one direction (away) to the other (toward) when Sara's clock begins to speed up. It's not actually 'speeding up' it's a consequence of spacetime.
police : "do you know how fast you're going??"
me : "ooww.... relative to what?"
No, officer, you were the one that was going fast, i wasnt moving
Hahaha
Agha Anantya LMAOOOO I THOUGHT THE SAME THING
Agha Anantya Hahahaha
Hahaa
Adam: "Hey! What time is it?"
Sarah: "I have a boyfriend"
* *Fires up the spaceship to commence an endless voyage through space* *
GF versus endless voyage through space? I cannot believe that is even a choice.
......Adam Returns from voyage in space which takes 2 seconds at light speed and Sarah is 100 years old, Adam says ‘how ya like me now!’
iT'S tHiRTeEN a.M, hOnEY (according to their wonderful clock around 13:42)
@@clionlouis5717 hahahahaaaaa.a
Thats quite nice comment
Adam be like,I’ve only been gone a few minutes wtf happened to you girl
Strangely romantic, the tragic story of Adam and Sarah separated by spacetime.
LoL
Reminds me of the movie interstellar.
Traurig.
😂
Lmao. The music is slightly annoying/out of place
Im going to rewatch this video untill i understand. I WANT to understand.
Keep watching, it will happen...it did for me and it was glorious!
Accept that magic is real
klaik30 have you accomplished your mission?
Harjot Singh he died sorry :(((
R.I.P. lol
Adam needs to stop running away from Sarah. They're meant to be together :(
And wear contact lenses :P
Let's not forget that at 12:07 he completely broke his neck. Really sad :'(
it's actually a hate love story....lol
He wouldn't like to betray Eve
Still a better story than Fortnite
I remember watching this video as a kid and falling in love with the beauty of physics and the background music, it gave me the inspiration to learn the piano and perfect it. Thank you for that.
@157 157 (James Henderson) I don't understand Maxwell equation but I too have doubt in theory of relativity. Can you please explain me Maxwell equation simply. I am not good at math.
I also love the mesmerizing piano music in this video. It matches perfectly the ambience of the video
Yo same, I’m revisiting this video from 8 years ago. The song btw is Origen-Dance of the Clouds. This is so nostalgic to watch again
Although it was posted more than 7 years ago, it remains a great and correct presentation ...
It’s good alright. I like how there’s no mathematics needed to get the points across.
When from adams perspective at 3.25, why is the planet (and hence mirror) not moving since from adams perspective its the planet thsts moving right?
@@MrABDURREHMAN1 Yes, i am stuck here
Abdurrehman farooq :
Maybe it could be clearer with another extra step: the mirror is on another spaceship running parallel to Adam’s one.
Alper Angın :
Here’s my answer to Abdurrehman farooq :
Maybe it could be clearer with another extra step: the mirror could be on another spaceship running parallel to Adam’s one.
Wow this is an excellent video. I go to school every day hoping my teacher's would teach me something like this but instead they bore me with the very basics of a plant for e.g label all the parts of a plant. I wish science in schools would be taken more seriously.
Lol there's no practical application for this unless you go into physics, and to actually understand this you'd probably need a few years of fundamental knowledge in physics, stop whining about school. (and maybe take physics instead of biology)
alifbatah maybe take physics instead of bio, that will help
Jayo Caine have a look at Labibs education playlist on my channel, I have made a few videos regarding various aspects of science and then you may understand why I like physics...O and please go easy on me considering I am only eight years old. Thanx.
To be interested in science at such a young age, you go!
alifbatah why don't you ask your teacher for some enrichment program you could go into? Tell her you're interested in these things.
This was extremely informative, but damn why is it so sad
Mynames John because you’re used to hearing this tonality from sad shit in the past
The music
is it sad tho? its your interpretation of sad. but why do you interpretate these tones as sad? as far as we know there is actually no logic behind it. high slow tones indicate sadness? what in evolution has caused that if thats the case? i wonder.
@@hsaccount_ it's not "high slow tones". Anytime you try to associate an emotion with a rule in art you will find a counterexample. That's the beauty of art, we know if something is beautiful, sad, happy, dark, but we don't know why :)
Ok
Background music: Origen - Dance Of The Clouds
thank you!!
Thx
Eyvallah dayi.
Alright im listening to this shit after i breakup
U r great!!!
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Thanks.
Can I upload it , by editing it in Hindi version. I am ready to share half revenue from all these videos.
Because people wants to understand it in Hindi. Really if you agree.
Email - kanaujiyavimleshkumar@gmail.com
@@vimleshkumarkanaujiya No, you can not upload copies of my videos. Subtitles are available on my channel in Hindi and in many other languages. To see the subtitles, click on the gear symbol under the video, then click on "subtitles." Then select the language (You may need to scroll up and down to see all the languages available).
What is the name of the music? It is so beautiful!
The music is "Dance of the Clouds."
I would really appreciate it if someone could explain to me how one calculates the time difference between the front and rear clock.
Albert Einstein's Theory of Relativity: a story about Adam's point of view.
Hey. so If I travel at near light speed and time slows from hours to seconds for me ... does my biological body follows the time?.
We can't survive without food and water. travelling for an hour at near lightspeed is equal to months on earth. how can my body survive?
@@naveenk2524 because your body can survive one hour without food
I'm pretty sure time will be taken out of Space time. Gravity is just a physical effect on clocks and atoms making us think time has been changed, but it hasn't, as clocks are not the definition of time. Time marches on at a steady rate irrespective of the existence of clocks.
It depends how you see it. Every relative has a perspective. But relatively, Adam is a brute to Sarah.
@@paulharrisonadventuregearm5457 Spacetime =/= time. You cant take time out of spacetime
Exactly ten years ago (I was 15 years old), I discovered this video. Before that, I am already interested in sciences and mathematics. After watching the video, I was mind blown and having existential crisis for a few days. From that moment, I started to read a lot of physics book and math book to be able to understand general relativity. I understood special relativity mathematically during my college majored in physics. For general relativity, it took me until now, my math is still not enough to understand it. I am currently a research student doing master degree in quantum dynamical semigroup. Without your video, it is hard to imagine to be able to get to where I am now.
Thanks. I am glad that my video made such a positive impact. By the way, in case you haven't already seen it, I have a video discussing the mathematics of General Relativity (Einstein's Field Equations) at ruclips.net/video/UfThVvBWZxM/видео.html
I don't know if Einstein can taught a 12 year old boy 'What is my theory of relativity'.But you did this . Great job..👌👌👌👌👍👍👍👍.I have never seen a educational video which can teach us this simple.
Best video on RUclips that explains both the theories of Einstein.
you're right in my opinion.
But i also like Leonard Susskind, Stanford University professor explaining the math:
ruclips.net/video/toGH5BdgRZ4/видео.html
sara says oh adam you promised me the moon and stars adam replys i know so lets take a ride on my rocket ☺
Eugene Khutoryansky is humanity's hero! so much time and effort (not to mention sheer brilliance) into making these concepts accessible to the general public!
Thanks for the compliments!
I literally feel my mind expanding when I watch these videos. It hurts.
but from your mind's point of view, it it't the one growing, it's you that are shrinking!
@@JuankQuinteroMejia From his mind's point of view, the video goes at the speed of light and it's clock moves faster, but from the video's point of view, the video stands still but it's Jim's mind that gets accelerated by a gravitational force.
Calm down y'all
Watching this at 3 am...and the thing is, it's so clearly explained that I understood almost everything
I love it how you connect your explanations with your atmospheric animations and the calming music. This way those topics regain the beauty that they deserve.
I was like "oh I dont know what the theory of relativity is, Even though I have heard of it many times, I want to know what it is" Holy moly this is heavy stuff! Now I realized why Einstein is a known physicist and not me
this is truly one of the best video on all yt.
i regularly come back to rewatch it, again and again, there is something that fascinates me but i can't exactly point out what it is.
Thanks for the compliment about my video. I am glad that you enjoy it.
The music sarah amd adam
Sums up lifes
Tesla on relativity:
“The theory, wraps all these errors & fallacies and clothes then in magnificent mathematical garb which fascinates, dazzles and makes people BLIND to the underlying errors. The theory is like a beggar clothed in purple WHOM IGNORANT PEOPLE take for a king. It’s exponents are very brilliant men, but they are meta-physicists rather than SCIENTISTS. ***NOT A SINGLE ONE OF THE RELATIVITY PROPOSITIONS HAS BEEN PROVED***”
I was directed here by a commenter on a video about Azumanga Daioh (Pico the Spicy Wardlord), as the narrator for this video is the english voice actress for Osaka from said series. In the series, it is loosely implied that Osaka sets out to become a teacher after high school, so it's really cool to see the VA teaching now!
So I guess the universe really does revolve around me
no, it revolves around me
+Tony Kontonasakis lol... I like this conversation.
Frisbieinstein Yeah, and it's not you.
+Tony Kontonasakis uh no I'm Pretty sure it revolves around me!
+Tom Chambers Argh! Such a Adam.
What if Einstein had a RUclips channel?
greentg10 then every one in our world will have headache.. like i am having right now
greentg10 he would be busy making videos. It would never have helped our cause.
If he time traveled
Cool
... lol
It was made a basic requirements for each individual to subscribe to it... Irrespective which part you belong from...
I have just passed 12 class, I understood 95 percent of all, that's great. Thank you for outstanding videos 🥰🥰
This video is so much more informative than mainstream science channels like SciShow.
this song is making me rethink my life choices
This music is hauntingly beautiful.
thanks now i understood the interstellar movie clearly...thank you very much
Haha thats exactly why im here.
+AWarmCoffee yes dude i saw that movie over 4 time's probably, but cant understand the basic concept, after this presentation i watched another time, and i clearly understood ..
That movie was trash
No one, ever, past, present or future, understands Interstellar.
Exactly why im here rn lol
I was regarded as the "smart kid" in school but even I can't understand any of this without your videos.
This was the video that got me started on my path to become a theoretical physicist. This video legitimately changed my life! But I have to say Eugene, you’ve improved tremendously on these since you made this. Ever think of remaking this video to remove some of the more whimsical bits or correct sections like the relativistic mass section?
Have u become a phisicidt... ? It's my dream too
yeah thanks to her ... for making me a theoretical physicist
@@ShankarKumar-bo8kc got to university
What is wrong with the relativistic mass section?
@@seralelix There is nothing "wrong" with the relativistic mass section, but there are many people who think that the concept of relativistic mass should never be used. I discuss this in detail in my video at ruclips.net/video/AU_O9yrgwhk/видео.html
I am so glad I found this channel
..it's got answers to all of my questions. perfectly satisfied.
Interesting. Very complex, and to think a man thought of this, and disproved what everyone in that time thought of space it's self. this puts a good visual in my head of his theory, thanks for the video.
Robby tty I am glad you liked the video. Thanks.
Best of the videos ever seen
..it's been here from 9 years and was just recommended..thats not fair.
Why am I crying? lol
+Daxkalak Don't cry...its like what Joey said...maybe he cud date Sarah's super hot great grand-daughter. XD
This is.. a sad story of Adam and Sarah )-;
because you don't watch rick and morty
I know right!
Me too 😢
man sarah should stop stalking adam. : p
Some people might appreciate someone watching over them
What a video!! I think every student should watch this video It creates curiosity in mind.👍👍👍
It mind blowing reality
Curiosity is infinite so is universe☺️
I love you Harshita Verma
This is probably the best video on RUclips that explains relativity.
Thanks for the compliment about my video.
An electron gets pulled up for speeding. The officer says "I clocked you at 186,000 miles per second". The electron says "Bloody hell, now I'm lost..."
heisenberg's uncertainty principle is it?
Damn what a nerdy joke 😂
My channel
ruclips.net/p/PLBpW6V16tlnCfru5rGMbCvN-Q5caJiBRs
No idea...
Poor electron
Great video, but that piano song.. mannnnnn Is like a time travel to my bed.
i enjoyd the entire video, except the sound of the balls bouncing...
+Anand Pathak yes THANK YOU
it wasnt gay until the balls touched
This is why this guy considered the "Genius of all time"
Over the last year I have become a physics junky. Your videos were some of my 1st inspirations. Thank you for all your hard work! I can't wait for the next one.
Thanks. I am glad you like my videos. I am working on the next one right now.
Good explaination, but the music was a bit too depressing...
The music is the best thing
And loud.
Mysterious afterall..😅
it was like a horror movie
the music is NOT depresssing , Its just russian music . SOVIET POWER .
I never knew Relatively Theory was so sad.. 😢😢😭😭
A sad love story 😩
😂
🤣🤣😄👏🏼👏🏼👏🏼
Same...this video made me weep 😭
relative to what?
Life is short in relative to universe.... Read about Islam
I remember seeing this video when it came out, its still so beautiful. Although im even more stumped at how all this works.
Anyway thanks for making this amazing video eugene❤
Thanks for the compliments!
The moment Einstein realised Time was a variable he must have felt like God himself!
Time is a dimension. How fast you move across it, is a variable.
@@new-knowledge8040 🤣
Time is relative not variable😂😂😂
He realized that he had only just begun to see the very very basics of how God designed the universe
Einstein realized he was right.....when he gaged the wave equations under lorenz boost. He was so right...........
Congratulations! It's the best explanation I've ever seen. Thank you so much
Exactly
1:47 That fourth observer sure has great vision when he is able to see the sun from outside the galaxy XD
At the place of eyes, thier were highly advanced telescopes.
That's the best explanation u will ever find ....!
Cause i waited for 8yrs i know.
I discovet yout channel yesterday, and running through all the video !
Brillant job!
Very educative and visualized !
Keep going it’s fabulous!
A french guy
Everyone : Relativity Theory is so sad
Me : wait, what that clock have 13 numbers
numbers*
because fliying 12hours at light velocity = as being still for 13 hours
Yeah I didn't noticed that.
why do your clocks go up to 13?
+MrErmmmmmm 26 hour days are the future, get with the *times*
+MrErmmmmmm I like the 13 hour clock!
He was joking :). Why the clocks go to 13 is still a mystery.
Who cares, it's a great video. If you really want a theory, however, perhaps it is to illustrate the point that time as we know it, isn't absolute.
..Russia..Great Cosmonaut Technology..
After 4 videos I finally understand it and it explains a lot about space. This video was by far the best as it did not just repeat Einstein's theory but actually explained it in a new modern way
I am glad you liked my video.
This is one of the best video to explain theory of relativity. I tried many sources to understand but this was the source which made me most nearest to understand Completely
The music is so mysterious perfectly matches with the content shared in this video, I enjoyed it so much! Thank you and Einstein really was genius
I very much appreciate Eugene for such brilliant content on a topic that so hard to express.
And for those of u who are still learning 2D, 3D and Vector Mathematics, just try to parallel transport a vector on the surface of a cylinder and a cone. U will the magic which Einstein fomulated in very complex Mathematics.
Can U Pls explain again What to do??
something about this video is so erie and mysterious. the music makes it that way.!! not to be overshadowed by the amazing information and knowledge given throughout the video! It is just perfect and i can watch it over and over and over again!!! Love it so much
Thanks. I am glad you like my video.
When drunk, it's very funny. When sober, it's like getting high cheap. Very good stuff!
I watched this video even before my high school and had loved it then. Even now when I'm in university it feels equally intresting and awesome, and this video reminds me of those days. I never thought that a RUclips video could carry so much of nostalgia 😃
I am glad you enjoy my video. Thanks.
I came here for the music. The theory is just a bonus
What about the love story?
J
Same
Lol
Which music is this?
Музыка вместе с информацией создают ощущение, в каком удивительном мире мы живём!
Music and information in this video makes me feel what's the astonishing world we live!
The music is origen-dance of the clouds
Thank you!
and from my point of view... I got headache!!
Me too, I feel like I understand what the video is saying, yet don't quite understand at the same time.
+Danny Dziedzic exactly
LOL.. Mind blowing... I wached it 3 times already and still blank
lol me to i can understand parts of it alone but when i try to connect it all together i get lost
watch interstellar
"Adam's ball have more mass" ata boy..
HAHAHA! Underrated comment!
Including eveything
Best physics explanation ever!
Now i can understand something in physics with this channel
Poor Adam. He's stuck in a spaceship with just a bouncy ball.
hahahahahah, you made me laugh so much!
Perhaps he should name It Wilson.
and sarah is a evil physicist , who never rescues adam.
Hell of of a bouncy ball! I'd love to have a bouncy ball that big!
so is it ok to watch this a couple of times or am i just plain stupid?
Yes. It takes a lot of imagination too.
even if we watcg ut a couple of times , we will get a bit of it . We need to hack Einstein's mind to get it as a whole i think 😭😭😭
DoubleCheeseBurgerss it's ok to watch a thousand times.
It's okay because EInstein took years to understand it himself.
🤣🤣🤣🤣🤣 same here
The first video that started to piece it all together for me; several Stephen Hawking (and other) books later and I still see why this explained it all to me in the first instance. Thanks for uploading.
This should be a part of public school curriculum. This was beautiful explained.
Thanks for the compliment about my explanation.
Any one here after knowing the discovery of gravitational waves?
1 year later..
still silence
Yeah
yes. gravitaion is nothing but a curvature in time space. imagine 4 people holding a bed sheet tightly that it is completely straight. now put 4 cricket balls at all the 4 ends. the balls will not move because the bedsheet is completey straight. but if you put a football in the middle of the bedsheet. the weight of football will create a curvature and all the cricket balls (the smallers particles) will be attracted to it. this force is what we called gravitaional force. the bigger the object the bigger the mass the bigger the curvature and more the gravity. hope you understand now ☺
Song:
Origen - Dance Of The Clouds
*:D*
The explanation of the Lorentz Transformation is very nice.
Thanks for the compliment.
+jafet, thanks for the compliment about my video. In reply to your question, the music is "Dance of the Clouds."
As always, it is an excellent video. A big thank to you dear Mr. Khutoryansky.
Thanks!
This explained the whole concept of relativity. I really don't have any words to thank you!!
I also realized I was stupid all these years thinking that relativity was an objective concept. I just realized
that Einstein was expert in confusing objectivity with subjectivity. nothing changes in reality to an observer
except their personal feelings. Nothing really shrink. what is seen shrunk to one is not seen shrunk in reality.
I invite the learned commentators to reject me if you can. will appreciate. Shaw from USA
So let's say we invent a spaceship that can move at the speed of light, that means we can travel from one end to the other end of the universe in one human lifetime or just a few seconds of it while on the earth it seems as we traveled for 93+ billion years right? how do we know the universe is 13.8 billion years old if time is relative? I must have made a mistake here.. right?
+ProgamerEU It's right when people on earth observes that.
+Michael Ordoukhani (HappyLittleMonk) Time is measured by the movements of the sun and the moon.
No time would have passed if you traveled at the speed of light, at least no time from an observers perspective. Theory indicates time should still pass on the ship, but if time slowed down Infinitely for an observer it is subir for debate as to whether you would experience the time.
Nat King Coules yah u r right the universe is 13.8 billion years old according to our perspective but it might be 10000 times older or just 1 hour old according to different perspectives
Holy shit you genius
Absolutely brilliant explanation.
Thanks.
Speed of light is constant, everyone teaches bcoz it is a number, 3,00,000km per sec. So long it took to understand the real principle i.e., speed of light watching from different observer is same i.e., same light both observer are seeing as reality. So light is light no more constant number. Thanks🙏🙏🙏
So I have a question, if any one can answer it or point me in the right direction that would be great. In this video when they're talking about some one returning from a high speed journey across the universe and only aging a fraction of what everyone on earth would age. They mention that the person in the space ship, on the way home, would see time on earth passing very quickly because they're traveling at it so quickly. Wouldn't the people on earth also see the space ship's time running very fast because they're seeing the same thing in terms of relativity. And if that's the case then the aging between the people on earth and the person in the spaceship would be equal.
Here's how I'm looking at it. In terms of relativity, the people on earth and the person in the space ship are seeing the same thing throughout the entire journey. When the space ship is traveling away from earth, the person in the spaceship is seeing the earth travel away from him just like the people on earth are seeing the space ship travel away from them. On the way back the person in the space ship is seeing earth travel towards them just like the people on earth are seeing the spaceship travel towards them. So wouldn't the aging differences all cancel out?
Honestly this is a great question, because on the surface it does appear that you would be correct. However I have a feeling that our assumptions are probably wrong...we just need someone to explain why we are.
Blake Mcdonald Each person see's the other person's clock as going slower only so long as no one is accelerating. From Adam's point of view, when he tries to turn around, he will think that there is a gravitational force balancing out the force from his rockets, causing him to remain still. From his point of view, this gravitational field will cause Sarah's clock to run faster than his. This is why Sarah and Adam will agree that Sarah is older when he returns.
Eugene Khutoryansky I've had the same question as Blake regarding the canceling out issue since, from each of the two perspectives, the other is aging faster. Your explanation doesn't solve this problem for me. You say that it is because Adam is accelerating to turn around that causes Sarah to permanently age more than Adam. But if everything is relative depending on the viewpoint, couldn't we just as easily say that it is actually Sarah (and the earth) that are accelerating to "turn around" to go back towards Adam (rather than the other way around)? So looking at it from that viewpoint, wouldn't Adam age more than Sarah?
frogsforall What is different in the two cases is that for Adam to believe that he is
standing still during the moment he fires his rockets, he needs to believe that
there is an external gravitational field during this moment. On the other hand,
Sarah does not need to believe that there was ever any external gravitational
field, and from her perspective this extra gravitational field never existed.
From Sarah’s point of view, she is older when Adam returns because time on his
ship slowed down while he was moving fast. From Adam’s point of view, Sarah is
older when he returns because there the extra gravitational force caused clocks
on Earth to move faster than clocks on his ship. Sarah will not say the same
thing about Adam, because from her point of view this extra gravitational field
never existed.
Gravitational field or not, unless there is a third point of perspective, in terms of relativity Adam and Sarah are seeing the exact same thing. Noting is standing still in the universe. As Adam fires his rockets, who's to say he isn't just standing still and the earth is moving towards him. For example, if you were swimming against the current in a river and something floating with the current was coming towards you. Without a third point of perspective its impossible to tell who's moving and who's standing still. If thats the case, Adam and Sarah would see the exact same thing. First something traveling away from them, then something traveling towards them. And all aging differences would cancel out. I know you're trying to explain this to us but I still can't see why one would age faster then the other.
Question. You know the movie interstellar? When they went to the planet with the tidal waves closer to gargantua the black hole, they said time will move slower due to the gravity. So let's see you and I were together in a spaceship and I made my way to that planet where every minute goes by 1 year goes by for you. If We set up
telescopes and looked at each other through it, would I see you in fast fwd and you would see me in slow motion? Or say we had huge analog clocks; would mine be moving extremely slow and yours would be moving extremely fast when we looked at each other?
i would also like to get an answer for that so i'm leaving this comment here hehe
Pedro Castillo me too
Awesome question!! I'm not sure because the light that bounces of you and makes its way to the other person is also influenced by the difference in gravity
Well time is relative to the observer. Meaning that the light that reflects off the telescope would distort it. Theres no way to observe both time frames from one perspective
Simply yes, you would. But having such strong gravity, you would become mud immediately once you touch the ground.
Such nice animations in the video. The concepts are explained brilliantly well in such a short video. I am a student of BS-Physics and I really find you videos very helpful. Thank you very much teacher Eugene.
Thanks for the compliments. I am glad my videos are helpful.
Best video about relativity I've watch this far and it's completely self contained
Thanks for the compliment about my video.
the ball sound startled me like woah
+Jennifer Turner lol me too i was watching this in an quite afternoon xD
This was enlightening. I am still in awe of the fact that you made the explanation of such a complex concept so easy to understand even for a layman. Kudos.
You explained it really well sir!!
+Aditi Advilkar, thanks.
I have been trying to explain this to my wife for years and she could not get it. I convinced her to watch this video, while pausing to answer questions. She finally understands to basic idea of it. Great video on breaking it down for everyday people to understand a lot easier. Thank you. Wish there was a golden like button.
Glad my video was helpful. Thanks.
What I love about this unique video is how it addresses both the head and the heart.
The melancholic mood reminds me of the weightless scene in Tarkovsky's Solaris (1972). The choice of such a mood makes sense because Adam and Sarah (like Kris and Hari in Solaris) are kept apart by nature's merciless laws.
Regarding the depiction of the physics I have just one confusion: why choose a moving mirror at around the 03:00 mark? Why not use a long stretch of a reflective surface (like a frozen lake)? Other than that I have no other confusion. Either way this is the best intuitive explanation of relativity i have ever seen.
Thank you.
Thanks for the compliment about my video. I am glad you like it. I wanted to draw a long mirror which didn't have to move, but I wasn't sure how to draw it.
and why would the ball in the space ship move up and down?
because Adam had super gravity on his hands :3
because of gravity generated by the ship's movement
Because it bounces from the ceiling.
why sad music tho
lmao
+Johnathan Jakkobi Makes me sleepy ^_^
Because it's too interstellar
+Jonathan Jacobi I'm really gratefull for the explanation! Very interesting ! However i wished more than a few time during the video there was a stop button allowing me to stop the music and keep the commentary.
K Le blanc I love the music, it makes me calm and sleepy :P
Jonathan Jacobi it's because Adam and Sarah didn't work out
Such charismatic music and setting. It would have been a beautiful nostalgia for me had I watched it as a kid. The music is so fitting as it feels as mysterious as the nature of spacetime, or the nature of universe and perception in general. ❤
I'm a little bit confused about the last part about the gravitational pull. Can you explain it to me a bit simple?
I'm not very good at explaining things but I'll try my best.....you can figure it like a trampoline.....a heavier object on the trampoline causes the trampoline to bend right(create a depression)? And if you put any lighter object on the trampoline it would go downwards along the depression.....".............so ,,in spacetime(trampoline) an object with heavier mass creates a curvature(depression) which causes objects to go along the depression
Raghu Krishnan Great explanation!!!
I’m pretty sure this is the video that first got me interested in physics. Truly inspiring content.
where are you now
A brilliant explanation and by far the easiest to understand. Have subscribed and will pass it on. Thank you for posting.
Thanks for the compliment and glad to have you as a subscriber.
Probably the best video on youtube
Thanks for the compliment.
12:20 omg his neck......
i love the music and the cartoon