[DOC] [TLE] Relativity of simultaneity - Wikipedia [PAR] In physics, the relativity of simultaneity is the concept that distant simultaneity  
whether two spatially separated events occur at the same time  is not absolute, 
but depends on the observer's reference frame. ... It was Albert Einstein in 1905 
who abandoned the (classical) aether and emphasized the significance of 
relativity... [DOC] [TLE] HW5 - Rutgers Department of Physics and Astronomy [PAR] Feb 29, 2016 ... Einstein's theory of special relativity is based on two postulates: ... table that is on 
a ship, you cannot tell whether the ship is at the dock or moving through the water 
... This says that observers in any inertial coordinate system will measure .... of 
light did not depend on the motion of the earth through the ether. [DOC] [TLE] Einstein's Theory of Relativity made Relatively Simple - Perkel.com [PAR] You've heard all the fancy terms like Einstein's theory of relativity, matter, mass, 
energy, .... We're not super massive objects or moving at close to the speed of 
light so we don't .... Relativity depends on the lack of absolute references. ..... But 
a stationary observer would measure his speed as just under the speed of light, 
but... [DOC] [TLE] The principle of relativity  Einstein Online [PAR] But from the point of view of observer B, his own station is at rest. ... The answer 
depends on which observer you ask. ... "motion" not merely as relative to other 
stations, but in some absolute way? ... These key experiments would give a 
different result, depending on whether the experimenter is at absolute rest or 
moving. [DOC] [TLE] Speed of Light and the Principle of Relativity - Special and General ... [PAR] The speed of light had been measured often and very accurately, going back to 
the ... Thus, whether a source of light is moving towards you or away from you, 
the ... is constant and does not depend on the speed of its source or its observer. 
... The principle of relativity says that the laws of physics are the same in all 
inertial [DOC] [TLE] Einsteins Theory of Relativity - Teach Astronomy [PAR] Intuition tells you that a stationary observer ahead of you would measure the light 
... Observations and special relativity say that the speed of light is always the ... 
He also argued that laws of physics do not depend on the state of motion of the 
observer. ... theory of relativity, Einstein set about including gravity in its 
framework. [DOC] [TLE] Is The Speed of Light Everywhere the Same? [PAR] The short answer is that it depends on who is doing the measuring: the ... of the 
speed of light in vacuum so that we can continue to ask whether c is constant. ... 
but by the same token it's nonsense to say that the speed of light is now constant 
..... And that's fine, because that observer in not moving relative to you, and their... [DOC] [TLE] GP-B  Einstein's Spacetime - Gravity Probe B - Stanford University [PAR] Light was known to be an electromagnetic phenomenon, but it did not obey the 
same ... they depend on the motion of the observer who measures them)  and 
light is more ... the property of spacetime which is responsible for gravity as its 
curvature. ... whatever Einstein says, and Newton tells us that bodies move in 
straight... [DOC] [TLE] Einstein*s Postulates - UCF Physics [PAR] In this paper, he postulated that absolute motion can not be detected by any 
experiment. ... of velocity, say a(v2), that can only depend on the magnitude of 
their relative velocities. ... If a particle has velocity ux = dx/dt in frame S, its velocity 
in frame S' is ... observer sees box moving observer sees stationary at u box of 
length. [DOC] [TLE] Q & A: why constant speed of light | Department of Physics ... [PAR] Or we could postulate with Einstein that all laws of physics, including ones to be 
..... Whether we choose to say it's the same photon after reflection or not is a little 
... Would we need to be

Question: Einstein said measurements of this depend on whether the observer is moving; it's not absolute
Answer: time