twin paradox

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twin paradox

n
(General Physics) a phenomenon predicted by relativity. One of a pair of identical twins is supposed to live normally in an inertial system whilst the other is accelerated to a high speed in a spaceship, travels for a long time, and finally returns to rest beside his twin. The travelled twin will be found to be younger than his brother
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References in periodicals archive ?
According to McMahon and Moyn, the imperative for reassessment comes from twin paradoxes: if everyone's methods are accepted as valid, then no one's methods are valid, and as more studies incorporate intellectual history, the sub-discipline may be diluted out of existence.
For proof, consider this June's twin paradoxes concerning the Egyptian presidency, whereby the same week saw Hosni Mubarak sentenced to life in prison and one of his Air Force strongmen winning enough votes to enter into the runoff election.
The connection between race and deservingness is the crux of Gilens's argument, and the solution to the twin paradoxes he poses.