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Twin Paradox overview Archived 24 September 2015 at the Wayback Machine in the Usenet Physics FAQ; The twin paradox: Is the symmetry of time dilation paradoxical? From Einsteinlight: Relativity in animations and film clips. FLASH Animations: from John de Pillis. (Scene 1): "View" from the Earth twin's point of view.
This experiment confirmed both time dilation and the twin paradox, i.e. the hypothesis that clocks sent away and coming back to their initial position are slowed with respect to a resting clock. [28] [29] Other measurements of the twin paradox involve gravitational time dilation as well.
Twin paradox: The theory of relativity predicts that a person making a round trip will return younger than their identical twin who stayed at home. Thermodynamics
Spacetime explanation of the twin paradox. These distinctions should result in a difference in the twins' ages. The spacetime diagram of Fig. 2-11 presents the simple case of a twin going straight out along the x axis and immediately turning back. From the standpoint of the stay-at-home twin, there is nothing puzzling about the twin paradox at all.
On the other hand, the Hafele–Keating experiment confirmed the resolution of the twin paradox, i.e. that a clock moving from A to B back to A is retarded with respect to the initial clock. However, in this experiment the effects of general relativity also play an essential role.
The twin paradox describes this: one twin remains on Earth, while the other undergoes acceleration to relativistic speed as they travel into space, turn around, and travel back to Earth; the traveling twin ages less than the twin who stayed on Earth, because of the time dilation experienced during their acceleration.
The twin paradox is an example of this effect. [2] The dark blue vertical line represents an inertial observer measuring a coordinate time interval t between events E 1 and E 2. The red curve represents a clock measuring its proper time interval τ between the same two events.
Time for the Stars is a juvenile science fiction novel by American writer Robert A. Heinlein, published by Scribner's in 1956 as one of the Heinlein juveniles.The basic plot line is derived from a 1911 thought experiment in special relativity, commonly called the twin paradox, proposed by French physicist Paul Langevin.