Mar 8, 2016 · The paradox in the twin paradox is that the situation appears symmetrical so each twin should think the other has aged less, which is of course impossible. When we're separated by distance, we are subject to perspective, such that you look smaller than me and I look smaller than you. But we don't claim that this is impossible We do not cry paradox.

Nov 13, 2021 · The "paradox" in the twin paradox is that a naive view of the problem would suggest that the situation ought to be perfectly symmetric: each twin should believe that he or she is really at rest, while the other twin is the one who moves off at high speed then returns.

Feb 11, 2019 · The twin paradox in special relativity has been discussed over and over again. Send a twin on a spaceship out to someplace or another accelerating at Earth gravity, then have it go through a series of decelerations and accelerations -- all at 1g -- so it returns to Earth, where the other twin is waiting.

Actually, the paradox in the "Twin Paradox" was never the paradox you so often see today. Einstein presented the first example of two clocks in his 1905 paper on special relativity. One clock remains stationary and another clock makes a round trip. Upon return, the traveling clock will be behind the stationary clock.

Jul 28, 2020 · $\begingroup$ in twin paradox, the supposed paradox arises from symmetry that the two twins both see each others time dilated (and resolution of the paradox is due to fact that the situation is not in fact symmetric). Here we do have symmetry, but we do not have a physically meaningful way to compare clocks of the two twins directly.

May 7, 2019 · In the twin paradox, at least one of the twins must have some acceleration, if the twins are to ever meet up again. The twin that accelerates (that is, the twin whose world line curves) experiences less proper time, because of their side to side motion. This is the story as told from Twin A's reference frame.

Nov 18, 2024 · In the twin paradox, the stay-at-home twin takes the direct route between the start and end of the experiment, while the travelling twin follows the kinked path. The geometry of spacetime being what it is, the kinked path has a shorter duration than …

Nov 16, 2018 · So twin paradox is not a paradox because a travelling body that returns to the same point where it starts is not an inertial reference. But then we have general relativity, that states that mass (energy) curves space-time. So when a photon changes its trajectory passing nearby sun, it's actually moving in a straight line, but in a curved space ...

Jun 15, 2019 · So the twin on earth has a clock, and the twin on the rocket has a clock. The clock on the moving rocket is not slower, but the twin on earth will see those intervals as extending for longer periods in their own frame. And, likewise, the twin on the rocket will see the earth twin's clock as ticking longer (slower) time intervals.

Unlike the original twin paradox, now you can return to your twin without acceleration. There is a pedagogical answer by Jeff Weeks in The American Mathematical Monthly (Vol 108 p. 585, 2001), which is available here (pdf). I borrow images from that document, but encourage you to read it yourself. Background: ordinary twin paradox with ...