2023年11月2日 · In summary, "Understanding Relativity of Simultaneity in Resnick, Part II" delves into the concept of simultaneity as presented in Einstein's theory of relativity. It explains how events that are simultaneous in one reference frame may not be simultaneous in another, emphasizing the role of relative motion and the speed of light as a constant.

2011年10月26日 · In your field there is no problem with simultaneity. Your friend can find out how far away he is from you, he knows the speed of light, and he can correct for all this. So simultaneity is easy and makes sense. Now somebody moving at half the speed of light is watching you two guys. He sees you do your corrections to get simultaneity.

2024年12月26日 · Indeed, this scenario is probably the simplest to demonstrate the relativity of simultaneity associated with light having the same measured speed in both frames. Let's consider the frame of reference in which the mirrors are moving. Let's say the mirrors are travelling with speed ##v## (assume this is to the right).

2024年2月22日 · Relativity of simultaneity leads to a clear contradiction in my mind with this explanation. If this is true, it means the relativity of simultaneity is false. Since relativity of simultaneity is a direct consequence of the speed of light postulate, it means the speed of light postulate would be false too.

2019年7月22日 · When we talk about simultaneity what we talk about is the simultaneity of two events, which are points in spacetime. Two events that are simultaneous in a given reference frame ##S## by definition have the same time coordinate ##t## and different space coordinates ##x_1## and ##x_2##, respectively.

2023年9月18日 · There is a difference between the simultaneity of two events and the simultaneity of the light of those two events arriving at an observer. The former is not frame dependent thus cannot be transformed away by motion. The latter can and is transformed away by motion which is the basis for the relativity of simultaneity.

2024年4月2日 · Relativity of simultaneity is a coordinate artifact that results from how inertial coordinates are constructed; how they are constructed is indeed constrained by the constancy of the speed of light and the principle of relativity, but that doesn't make coordinate-dependent quantities fundamental.

2023年9月1日 · Given the above, the possible range of "simultaneity conventions" is obvious: any division of 4-dimensional spacetime into 3-dimensional subsets that meets the above requirements is a valid "simultaneity convention". Discussion I have tried searching for a good, layman's definition of a “coordinate chart” and failed.

2021年8月9日 · In summary, The relativity of simultaneity is a difficult concept in Special Relativity. In cases where motion is not involved, observers will agree on the timing of events. However, when motion is involved, observers may disagree on the timing of events due to factors such as the finite speed of light and time dilation.

2023年12月27日 · I recommend focusing on Morin's book. The Relativity of Simultaneity (or Loss of Simultaneity) is the first thing he covers (1.3.1). Time dilation is the second (1.3.2). Spacetime diagrams come later (after chapter 1). Perhaps spacetime diagrams would help at this stage - Morin obviously decided otherwise, so why not trust him?