The example is correct, and that will (and should) blow peoples' minds who haven't learned about relativity. That's the point. But it takes more than a five second example to explain why it is true and how it is known to be correct. There are good youtube videos on relativity and specifically on the topic relativity of simultaneity.
i’m so glad you did a graphic like this, because when I studied physics as a physics, major and example of reference frame was given as a train, and something happening with the train is traveling, and maybe a lightning strike or some thing, and I never could really fully grasp that concept. Even with this graphic, you kind of have to think about it for a couple seconds.
Okay let's say that two events occur that are spaced apart from each other spatially, but both however are positioned at the same specific point in the dimension of time of the 4D environment know as Space-Time. Thus here we will say that relative to the dimension of time, both of these events are truly simultaneous events. That is our starting point, the actual occurrence of two events. However, from a different frame of reference, which is determined by what direction the observer is traveling within the 4D space-time environment, event A may seem to occur before event B. Or from another frame of reference, event B may seem to occur before event A. But what is important, is that two real events did occur at one specific point in the dimension of time, and that therefore from Space-Times point of view, they were truly simultaneous events. Meanwhile though, there is no way in which any observer in any frame of reference can know if their observation of the timing of the two events, is the correct one. But again, something absolute has to occur in the first place, that can then be view differently, by different observers.
There are 3 lights in the form of a triangle. A, B, and C are lights and are stationary with respect to each other. S1, S2, S3 are spaceships. S1 is moving from B towards A. S2 is moving from C towards B. S3 is moving from A towards C. A, B, and C flash simultaneously in the frame of reference that is at rest relative to these lights. So in the frame of reference of S1, A flashes first followed by B flashing. In the frame of reference of S2, B flashes first followed by C flashing. In the frame of reference of S3, C flashes first followed by A flashing. So the sequence of flashing is A, B, C, A. But wait! A flashed first. How can it flash last? How can A flash both first and last? It only flashed once in the frame of reference that is at rest relative to these lights. Therefore there is a paradox.
Another way to explain it is that when you are moving, time slows down for you. So if you and a friend collide in an accident at the same time, then you get on an airplane and your friend stays at the scene, and both of you agree to ring a bell exactly an hour after the accident according to super accurate clocks you both have, the bells won't ring at the same time! AND the one who stayed behind will age a tiny bit slower!! Actually slower, not just how it "feels". It doesn't seem true because the time distortions are very very small unless you are going much faster than any plane can travel. But GPS signals like those used by your phone have to adjust for the effect in order to work correctly. It's a very real effect that has been known since before the invention of sliced bread, and it has been proven innumerable times with great precision exactly as Einstein discovered. Crazy huh? It's normal to be skeptical because it sounds ridiculous. Everybody thinks it's nonsense until they learn how it was proven. And everyone who studies it comes to understand and believe it, even if they have to do the experiments to see it for themselves. But if you think THAT is the strangest thing about nature, wait until you learn about quantum physics :)
2 ships passing each other. Ship1 at rest at top: T--------------------N N--------------------T The moment when T1 is lined up with N2 must be the same moment in both frames of reference because there is only 1 moment when this occurs. There was some point in the past when N1 was lined up with T2 according to ship 1 but not according to ship 2. That is impossible thereby proving that special relativity is nonsense.
Yes, A, B, and C have different separations after the transformed coordinates, but it does not mean that the measurement is inaccurate. It simply makes them relative. It's kind of like sitting at a table and placing a cup of tea to your right. However, a person sitting face to face with you might say that the cup of tea is located to their left. Left and right are just as relative as the order of events shown in the video. It kind of like sitting on a table and you place a cup of tea at the right but a person who sits face to face with you will say that cup of tea located at his left, left and right is just as relative as the order of events as shown in the video.
This is basically why you can see yourself in any direction you look in a mirror, I’ve always thought is it waiting for me to move because I can see thing that are outside of my vision if I move, meaning that they are there I’m just not observing it, so if someone else was to look into the mirror they would do a different image because of their difference in spatial position
It’s not just appearance. They do occur in different order to different observers and no observers perspective is any more or less true than another. Trippy!!!
Wednesday 10th January 2024. 04.24am. "Dear Sir/Madam. Good-morning. How are you? I trust you are well." "Einstein, is over-rated. He put all his energy into science. He had a peaceful existence. Thank God. Nothing went wrong for him. Even the Women loved him. I on the other hand am a genius, self-taught. I will never get the recognition in the West as Wealth & money determines respect one is given, they frown upon Poverty and lack. They don't believe in struggle because everything was given to them, it's easy for them, they've never worked hard and God loves them. The Theory of Relativity, makes sense. It's just a natural phenomenon, cause and effect, action and reaction. We live in the World.Thank you for your Video. God bless Einstein." Yours Faithfully. Sir Francesca Kray.
Comments show what happens when you try to explain relativity in a simple way to the masses. You have to explain it in more depth and you have to take the audience's education level into account. Maybe a few viewers who haven't heard of relativity get motivated to learn more.
Thank you. I was just about to make a similar comment. I'm amazed at how certain people are when they're totally ignorant of the subject being discussed.
The time interval of the moving airline is different. The people in flight are in a different frame of reference. The order in which they occur is not something I understand. The people in flight are in a space where time is larger interval.
Thanks for the lecture. Let me ask you a couple of questions: Can we assume the following: is the ordered vibration of gravitational quanta the same as light? Is there a contradiction in direct experiments with this proposal? Thank you in advance.
Recently, there is a new book on Amazon titled 'Universes Are Black Holes.' The axioms and mathematical derivations in this book are much simpler than those of relativity. In addition to easily deriving all the classical conclusions of relativity, such as time dilation, length contraction, gravitational lensing, and planetary precession, it claims to also explain dark energy and dark matter. Can these experimental verifications really prove the correctness of relativity? Could you provide some insight on this? Will theory of relativity be revised finally? Thank you.
This is a good point, in real life,the curvature of space and time does try to distort you as well, but your body exerts a force outwards that counteracts this distortion.
I understand relativity and the special difference makes sense but I dont get How The time of the car crash can be different if it happens at for example 6am in the morning in NY and at the same time in Prague (which is then 12 o clock noon). It is still the same time for the occasion. There can’t be another point of view for the event. It’s both causality „A“ if it happens exactly at the same time. Time differences are just because of different time zones but that’s not the same as the location view difference.
it's been a while since I learned about this in high school, but I think the explanation is the following: if the plane is flying from Prague to NY then the light from the car crash in NY arrives earlier at the plane than the light from the car crash from Prague (assuming the plane is in the middle of both cities). The plane is moving away from the Prague accident, so it appears to happen later because the light needs to catch up to the plane. Hope that helped
@@TobyKate Yes Buddy, many thanks for your response. I understand the speed-of-light part. But still one cant change causality..? If youre in NYC and on the Phone with someone in prague and in front of both of you a car accident happens, then its in fact the same moment causality wise. I think the end part of the video is a bit vague if you dont take the soeed of light into consideration. And if you would, they should say it. Because its such a small difference if youre in prague or NYC compared to the speed of light. PS: I live in Prague :-)
@@dadjaan I think it's all about relativity. Yes they happen simultaneously, but to an observer it wouldn't hence it's impossible to know for sure what happened first. Like when you are jumping: are you jumping or is the earth falling down? of course we know what's true, but technically speaking, what is true depends on the observers pov. Prague is a nice city, greeting from Vienna ;)
That's why they call it the "speed of light" not the "velocity of light". Speed denotes an average. But you are correct you need the round trip to average the speed.
@@Somethingisntright64 Speed is scalar, velocity is vector. I find lots of assumptions are made in physics. One that makes me laugh even more is infinity. The moment they suggest the universe is infinite, we can calculate at what distance we are replicated exactly as we are here. 😅
This is a poor example. First an observer cant observe two accidents on opposite sides of the ocean. So they dont appear anything you can only see one and be told about the other at a later time. If an observer could see two accidents like in space and you saw them collide at the same time. Then they happened at the same time no matter what its not an appearance of anything other than two accidents happened at the same time.
They represent causality or invariance in spacetime. The distance between events is called the proper length. In different frames of reference, people will observe different separations, but they will always find the value of the invariant after applying a transformation.
That is really overcomplicating an attempt at simple explanation by trying to make it more simple then it is. If I had to explain it in the modt straightforward as possible without going into conplex math( that I don't understand fully either): Einstein's general theory of relatively discusses the connection between matter in space and its effect on space time itself. The theory proves that a region of space basically curves like a trampoline when you put an heavy object on it, when matter in the region has a lot of mass. And the curvature of space gets more extreme the more massive matter is. What this theory proves is that time and distances are affected by space because when space is curved, things like light and time are curved along with it and because of that even light will take more time to go from point A to point B if it goes through a curved space region compared to a normal flat one. And the same goes for time. The more curved space is in a certain region, the slower time passes because it needs to basically cover more distance just like light. That connection between time and gravity is the reason why there is time dialation in areas in the proximity of objects with extreme mass, like black holes for example. Essentially summarize, the theory proves the connection between the mass and energy of objects to the curvature of the space they occupy, and it proves that this curvature is also making distances longer and making time slower
The theory proves nothing. Relativity is pseudo-science and masks the reality of the underlying observation so much so that it's 180 degrees from reality. A mirror image to be exact. Which is why you can't see the blatant errors right before your eyes. First of, space is a vacuum. What exactly are you 'warping' if space itself is nothing? Second. Newton's gravitational attraction BS was disproven by Galileo and Nasa and many hundreds of other disproportionate weight drop tests. There simply is no such thing as gravitational attraction. Mass is not an actionable force. It can't warp space. What Einstein’s theories does prove is that you are a bunch of ignorant sheep that can't think for themselves. The laws of physics are equally applicable in ALL frames of reference. How can the Earth's mass pull objects inward when its axial rotation is accelerating its mass outward? How can gravity be so weak it can't be measured (equivalence principle), and yet it can act on massless photons. You relativists take the grand prize for stupidity.
Buahahaha - Einstein + blackboards + chalk and days upon days of writing + genius math just doesn’t get the same feel as 2 car in a separate accident at the same time viewed from space in an airplane 😂😂😂😂😂😂😂😂
The separation does indeed change because it is the measurement of different frames. In Relativity, individuals can have differing opinions on the length of an object and the distance between events.
What bs are your saying & feeding to your subscribers?? Person A at New York Street 1 & Person B at New York Street 2 started & finished their breakfast between 9 & 915 AM. To not just for someone from International space station but someone who travelled from street 1 to street 2 also the action happened at the same time that is both of them ate between 9 & 915 AM. Why would person x (observer) think that person A & person B ate at different times...????
Well sort of. Even though the example is correct, and that will (and should) blow peoples' minds who haven't learned about relativity, it takes more than a five second example to explain why it is true and how it is known to be correct. And the amount of difference measured by people in a plane would be in the billionths of seconds, so that's not really graspable to your average TikTok viewer. I wonder if a better example is possible in so short a video. There are good youtube videos on relativity and specifically on the topic relativity of simultaneity.
Did I just see you depict a negative velocity vector? casually breaking causality? A negative velocity is not the same as going the other direction.. Sorry, I just wish I could have hit the comments at less then 0mph , like -.5c, as in before you made the video. Combination of positive x and negative y , vs taking x and subtracting y get the same answer in basic math but mean completely different things in concepts and how you would make and apply a formula from such concepts. *Please* don't be discouraged! Just fix, If anyone is mean, they don't know you, be an iceberg, truth the water, their words the wind. Grow your self from truth and meaningless words no longer move you. The internet is ruthless, But at least RU-vid ain't Twitter..
This is a spacetime diagram, which is not Euclidean but instead exhibits hyperbolic geometry. To better comprehend how rotations work, I highly recommend watching the video titled "Length Contraction Is Not an Illusion" by Science Asylum.
The object is moving exclusively in the x-direction, while the y-coordinate represents the temporal axis of a moving individual. They have the option to remain stationary by rotating the time axis to align with their spacetime trajectory.
It's definitely fair to regard Einstein as a genius. But even if he was never born, nuclear weapons would have been developed in the same time period. You can't blame the first caveman who invented a gun for all the gun deaths since. If there's any single person behind today's nuclear weapon threat, it might be better attributed to Edward Teller. Einstein was concerned about Hitler getting nukes first and using them. He later reflected that if he knew Hitler could not have developed them, he would not have participated. Teller, on the other hand, pushed for fusion bombs for the sake of having bombs with no upper limit on destructive power, and afaik never had any regrets about the threat he pushed hard to create.
🔄🌏🔃 it is both forces at once.12/30/2022. the evidence is round objects within a flat plane. from the center is our core but from the center of a galaxy is a black hole the strong driving force to begin with. for this all to manifest as one form. this is what we call gravity. the driver of entropy. the heat sink in thermodynamics.o. energy One Way energy time flow. time describes rotation of planets from dark to light & to and from Light travel. the other side is the black hole. which is dark but, light at the same time. the slit test prove this where two reveal the one. 🔆 ◀l🔆l🔆l quantum physics of entropy involving all forces at one time. that's why galaxies look like one light, until you get closer to see it is the light of many proving light is everywhere all the times. entropy is everywhere all at once. black holes make it look like swiss cheese so everything can go flow in and out and around of itself. a universal heat signature radiation. this is where the Multiverse Theory comes in, because the manifestation is a scale of infinity. example would be are Cosmos is, a Quantum particle in size compared to Infinity. also proving that Einstein was correct. I never heard him talk before until today, then I understood his words. this has taking me 18 years. AKA spark in the dark.
