Has the twin paradox been tested?
The twin paradox is real as the traveling twin will see the Earth clock moving as slowly as the twin on the Earth. Yes, it is real but shouldn’t really be called a paradox.
Does twin paradox require acceleration?
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.
How can the twin paradox be resolved?
The so-called “twin paradox” is easily resolved by noting that there is a physically meaningful disinction between the experiences of the two twins during the trip. The Earth-bound twin remains in a single constant velocity reference frame the entire time while the traveling twin must accelerate to turn around and come home.
What is the effect of acceleration on a traveling twin?
The acceleration causes the traveling twin to change from one constant velocity reference frame to another and produces effects that can be measured locally by the traveling twin in the form of inertial forces that can knock things over, compress springs, and generally endow objects with weight.
How does the twin paradox relate to the Doppler shift?
During the trip, both the traveler and Earth keep sending signals to each other at a constant rate, which places Langevin’s story among the Doppler shift versions of the twin paradox. The relativistic effects upon the signal rates are used to account for the different aging rates.
Does the travelling twin have two inertial frames of reference?
However, this scenario can be resolved within the standard framework of special relativity: the travelling twin’s trajectory involves two different inertial frames, one for the outbound journey and one for the inbound journey.