Can we really agree on what's happening in the universe right at this moment? -------------------- 0:18 - What the person on the platform observes 0:31 - What the person on the train observes
In case you're confused, the reason that light traveling at the same speed regardless of who views it is so important and creepy, it's because people talking about the speed of light are usually referring to the variable C. The speed of causality. The speed of cause and effect. In the World Lines interpretation of time (look up "why ftl travel causes time paradoxes" for more info), this limited speed of causality can be thought of as the speed at which the world is updating what's happening in it. For example, it takes 8 minutes for sunlight to reach us. If the sun were to explode, it would look normal to us for 8 minutes. During this time, not only does the sun LOOK normal. We don't exist in a world where the sun has exploded yet. Since your speed and mass can warp space, they quite literally change the timing between causal and effective events happening according to your point of reference.
For the simultaneity issue, you can use the doppler effect with the same frequency i.e.; for an observer in the middle of a moving train, two stationary lights "simultaneously" are activated from the front and the rear wagon. The front light will be bluish meanwhile the rear light will come reddish to the observer. For a given time, the front light will travel less quantity due to its reduced wavelength, but the rear light will travel a greater distance due to its greater wavelength for the same given time (same frequency at the source). Both lights will reach the observed at the same time... simultaneously! If the two source lights are at the wagon and moving all together with the observer, both lights will reach the middle with the same wavelength and same distance, they will arrive .... simultaneously! what is your opinion?
Ones perspective does not dictate reality. One of the observers is wrong. If we put a bomb in the middle of the train with light triggers to go off when they are hit by the light at the same time, then the bomb will explode when this happens the person that sees the lights go on at the same time is always correct and the person on the train is always wrong. There us no way they can both be right
THE PARADOX THAT DISPROVES RELATIVITY: There is a triangle of lights which we will call A, B, and C. They flash simultaneously in the frame of reference that is at rest relative to these lights. There is someone moving at a high rate of speed from B to A. There is someone else moving at a high rate of speed from C to B. There is someone else moving at a high rate of speed from A to C. So A flashes first and then B flashes and then C flashes and then A flashes again. How can A flash twice? When A flashes has B already flashed or not yet flashed? or B flashes first and then C flashes and then A flashes and then B flashes again. How can B flash twice? When B flashes has C already flashed or not yet flashed? or C flashes first and then A flashes and then B flashes and then C flashes again. How can C flash twice? When C flashes has A already flashed or not yet flashed?
This is all wrong the guy on the platform at 0:28 should see the Orange light first as its coming towards him and the Blue light second as its moving away from him. The person on the train at 0:41 should see the two lights at the same time because they are not moving in relation to him !
Yeah, that's what I think. Because the speed of light remaining same for any inertial observer, the observer on the train (who was standing at middle of the train) must see both bulb go on simultaneously (as light from each bulb will take same time). I don't really understand this :(
no, The Observer on the train sees the blue light hit him before the orange light turns on. The Observer on the platform sees the blue light hit him after the orange light turns on
@@joepierson3859 it's the opposite, the guy on the platform sees the orange light first as it's travelling toward him and the blue light later as is moving away from him and also because that's what Lorentz transformations say : t = t'+v/c^2*x'/srqt(1-v^2/c^2)....which means that when t' =0 (the instant when the blue light departs for the passenger ) t( for the blue light) equals gamma *v/c^2*×'(the coordinate of the blue light's source)..which is not zero at all)
@@alessandrosansone6607 that would imply the speed limit is different for the orange and blue light which contradicts the postulate that the speed of light is the same for all Observers
I always find this confusing. On the one hand, they say that this "un-simultaneity" is not because light takes time to travel. Then on the other hand, they say that this alien could think that the dinosaurs still exist? Why, if not because light takes time to travel there?
The Doppler Effect is totally ignored. Therefore the lights are wrong. For that very brief moment in time when the person on the platform and the person on the moving object are face to face, the person on the platform gets Blue Shift on his Left(more energy ) and Red Shift (Less Energy ) on his right. The person on the moving object has the Doppler effect totally canceled.The photon leaving the light source on left of viewing screen gets Blue shifted but the person in the center (moving object ) is moving away at the same speed, the photon gets Red shifted when absorbed by persons eyes canceling the Doppler effect. The same thing happened to the front light source but in reverse order ..
The animation is wrong. Since the lights are stationary relative to the traveler he will see them fire simultaneously. In the origonal thought experiment it was the other way around - the flashes were in the reference frame of the observer on the platform. Either way, Einstein's conclusions from this were wrong. He concluded that things will shrink in the direction of the train (aka Lorentz transformation). It is easy to show that if the traveler knows his speed he can calculate that the lights were fired simultaneously. Also, since he most likely doesn't travel in complete darkness it's easy to show that the train will look exactly as long as the tunnel (from the original thought experiment) if you only know the basics of perspective (as in photography or 3D computer graphics). I'm quite amazed that people still think Einstein was a genious and that the mainstream doesn't question relativity more.
Lets say that on the moving platform there were clocks positioned at the lamps. The guy in the middle on the moving platform can't see the clocks because they are shaded. However, with the lamps light up, this lights up the clocks as well, and each image of each clock will then travel toward the guy in the middle, and thus based upon these clock images, he will see the time that each lamp had lit up. And of course the clocks will inform him that the lamps lit up at different times. How can that be ? Well the guy who is at rest will also notice that the clock at the rear end of the moving platform is ahead of the clock at the front.
Einstein's conclusions were wrong? questioning relativity? Those conclusions have been proven right experimentally countless times. One of the experiments include time dilation effect measured on an atomic clock on-board of a satellite in orbit? But I guess you also question things like satellites, space travel, and the moon landing, so let's not put too much pressure on your conspiracy infected brain, I'll only say, wait till you find out the earth isn't flat, it's going to blow your mind 🤯 ...if there is anything to be blown.
@@conanbarbarian8523 Some aspects of Einstein's theory are correct, some are not. You can make a theory which is indistinguishable from relativity, and both would be "proven" right by the same evidence. Would you consider the alternative with an open mind? I doubt you would. By the way, no theory can ever be proven right. Einstein himself was more humble in that regard than any proponent of his theory today.
It's not correct...according to the person on the platform, the blue flash is delayed(so that the guy on the platform see the blue light a little bit later than the red light)but both flashes still reach the passenger at the same time(a different time, not the same instant measured by the guy on the train) because on the right side the distance is shorter and longer on the other side but on the right side the blue flash departs later than the red flash
raise your hand if it seems kind of a horror scene to you
thank you to all the starry friends ~ we are able to relax and enjoy now !
In case you're confused, the reason that light traveling at the same speed regardless of who views it is so important and creepy, it's because people talking about the speed of light are usually referring to the variable C. The speed of causality. The speed of cause and effect.
In the World Lines interpretation of time (look up "why ftl travel causes time paradoxes" for more info), this limited speed of causality can be thought of as the speed at which the world is updating what's happening in it. For example, it takes 8 minutes for sunlight to reach us. If the sun were to explode, it would look normal to us for 8 minutes. During this time, not only does the sun LOOK normal. We don't exist in a world where the sun has exploded yet.
Since your speed and mass can warp space, they quite literally change the timing between causal and effective events happening according to your point of reference.
Can i Please vuse this video to make my own version of Simultaneouty of events
For the simultaneity issue, you can use the doppler effect with the same frequency i.e.; for an observer in the middle of a moving train, two stationary lights "simultaneously" are activated from the front and the rear wagon. The front light will be bluish meanwhile the rear light will come reddish to the observer. For a given time, the front light will travel less quantity due to its reduced wavelength, but the rear light will travel a greater distance due to its greater wavelength for the same given time (same frequency at the source). Both lights will reach the observed at the same time... simultaneously! If the two source lights are at the wagon and moving all together with the observer, both lights will reach the middle with the same wavelength and same distance, they will arrive .... simultaneously! what is your opinion?
Interesting thought ! But won’t light of all wavelength travel at the same speed, independent from the wavelength ?
Ones perspective does not dictate reality. One of the observers is wrong. If we put a bomb in the middle of the train with light triggers to go off when they are hit by the light at the same time, then the bomb will explode when this happens the person that sees the lights go on at the same time is always correct and the person on the train is always wrong. There us no way they can both be right
THE PARADOX THAT DISPROVES RELATIVITY:
There is a triangle of lights which we will call A, B, and C. They flash simultaneously in the frame of reference that is at rest relative to these lights. There is someone moving at a high rate of speed from B to A. There is someone else moving at a high rate of speed from C to B. There is someone else moving at a high rate of speed from A to C. So A flashes first and then B flashes and then C flashes and then A flashes again. How can A flash twice? When A flashes has B already flashed or not yet flashed?
or
B flashes first and then C flashes and then A flashes and then B flashes again. How can B flash twice? When B flashes has C already flashed or not yet flashed?
or
C flashes first and then A flashes and then B flashes and then C flashes again. How can C flash twice? When C flashes has A already flashed or not yet flashed?
how can changing direction cause difference ? can someone explain. thanks
This theory is wrong because it is based on Lorentz Transformation which is invalid in reality. vixra.org/abs/1706.0498
Eric Su you’re probably a flat earth believer no?
This is all wrong the guy on the platform at 0:28 should see the Orange light first as its coming towards him and the Blue light second as its moving away from him. The person on the train at 0:41 should see the two lights at the same time because they are not moving in relation to him !
Yeah, that's what I think. Because the speed of light remaining same for any inertial observer, the observer on the train (who was standing at middle of the train) must see both bulb go on simultaneously (as light from each bulb will take same time). I don't really understand this :(
no, The Observer on the train sees the blue light hit him before the orange light turns on.
The Observer on the platform sees the blue light hit him after the orange light turns on
Exactly
@@joepierson3859 it's the opposite, the guy on the platform sees the orange light first as it's travelling toward him and the blue light later as is moving away from him and also because that's what Lorentz transformations say : t = t'+v/c^2*x'/srqt(1-v^2/c^2)....which means that when t' =0 (the instant when the blue light departs for the passenger ) t( for the blue light) equals gamma *v/c^2*×'(the coordinate of the blue light's source)..which is not zero at all)
@@alessandrosansone6607 that would imply the speed limit is different for the orange and blue light which contradicts the postulate that the speed of light is the same for all Observers
I always find this confusing. On the one hand, they say that this "un-simultaneity" is not because light takes time to travel. Then on the other hand, they say that this alien could think that the dinosaurs still exist? Why, if not because light takes time to travel there?
Actually simultaneity is universal. No confusion here. vixra.org/abs/1706.0498
I have to turn off the audio for it is a negative contribution. And I found it wrong.
I'm shearing this because these kind of channels should be in the top 10 just make more.. it's gonna be much cooler
It's just an idiotaneity.
When you put words on the screen, give the viewer time to read them. This is basic.
Jerry Thomas you can pause
Why do you need reading that idioteinity?
Use the pause !
@@flyingfish381 Duh. The viewer shouldn't have to.
The Doppler Effect is totally ignored. Therefore the lights are wrong.
For that very brief moment in time when the person on the
platform and the person on the moving object are face to face,
the person on the platform gets Blue Shift on his Left(more energy )
and Red Shift (Less Energy ) on his right. The person on the moving object has the Doppler effect totally canceled.The photon leaving the light source on left of viewing screen
gets Blue shifted but the person in the center (moving object ) is moving
away at the same speed, the photon gets Red shifted when absorbed by persons eyes canceling the Doppler effect. The same thing happened to the front light source but in reverse order ..
Looks wrong
The animation is wrong. Since the lights are stationary relative to the traveler he will see them fire simultaneously. In the origonal thought experiment it was the other way around - the flashes were in the reference frame of the observer on the platform.
Either way, Einstein's conclusions from this were wrong. He concluded that things will shrink in the direction of the train (aka Lorentz transformation). It is easy to show that if the traveler knows his speed he can calculate that the lights were fired simultaneously. Also, since he most likely doesn't travel in complete darkness it's easy to show that the train will look exactly as long as the tunnel (from the original thought experiment) if you only know the basics of perspective (as in photography or 3D computer graphics). I'm quite amazed that people still think Einstein was a genious and that the mainstream doesn't question relativity more.
Alexander, you are absolutely right. The animation was flat out wrong.
Lets say that on the moving platform there were clocks positioned at the lamps. The guy in the middle on the moving platform can't see the clocks because they are shaded. However, with the lamps light up, this lights up the clocks as well, and each image of each clock will then travel toward the guy in the middle, and thus based upon these clock images, he will see the time that each lamp had lit up. And of course the clocks will inform him that the lamps lit up at different times. How can that be ? Well the guy who is at rest will also notice that the clock at the rear end of the moving platform is ahead of the clock at the front.
Einstein's conclusions were wrong? questioning relativity? Those conclusions have been proven right experimentally countless times. One of the experiments include time dilation effect measured on an atomic clock on-board of a satellite in orbit? But I guess you also question things like satellites, space travel, and the moon landing, so let's not put too much pressure on your conspiracy infected brain, I'll only say, wait till you find out the earth isn't flat, it's going to blow your mind 🤯 ...if there is anything to be blown.
@@conanbarbarian8523 Some aspects of Einstein's theory are correct, some are not. You can make a theory which is indistinguishable from relativity, and both would be "proven" right by the same evidence. Would you consider the alternative with an open mind? I doubt you would.
By the way, no theory can ever be proven right. Einstein himself was more humble in that regard than any proponent of his theory today.
WRONG
It's not correct...according to the person on the platform, the blue flash is delayed(so that the guy on the platform see the blue light a little bit later than the red light)but both flashes still reach the passenger at the same time(a different time, not the same instant measured by the guy on the train) because on the right side the distance is shorter and longer on the other side but on the right side the blue flash departs later than the red flash