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The paradox of a charge in a gravitational field is an apparent physical paradox in the context of general relativity. A charged particle at rest in a gravitational field, such as on the surface of the Earth, must be supported by a force to prevent it from falling. According to the equivalence principle, it should be indistinguishable from a ...
The Faraday paradox or Faraday's paradox is any experiment in which Michael Faraday 's law of electromagnetic induction appears to predict an incorrect result. The paradoxes fall into two classes: Faraday's law appears to predict that there will be zero electromotive force (EMF) but there is a non-zero EMF. Faraday's law appears to predict that ...
Decay time of muons: The time dilation formula is T=γ T0{\displaystyle T=\gamma \ T_{0}}, where T0is the proper timeof a clock comoving with the muon, corresponding with the mean decay time of the muon in its proper frame. As the muon is at rest in S′, we have γ=1 and its proper time T′0is measured. As it is moving in S, we have γ>1 ...
The moving magnet and conductor problem is a famous thought experiment, originating in the 19th century, concerning the intersection of classical electromagnetism and special relativity. In it, the current in a conductor moving with constant velocity, v, with respect to a magnet is calculated in the frame of reference of the magnet and in the ...
Klein paradox. In relativistic quantum mechanics, the Klein paradox (also known as Klein tunneling) is a quantum phenomenon related to particles encountering high-energy potential barriers. It is named after physicist Oskar Klein who discovered in 1929. [ 1] Originally, Klein obtained a paradoxical result by applying the Dirac equation to the ...
A temporal paradox, time paradox, or time travel paradox, is a paradox, an apparent contradiction, or logical contradiction associated with the idea of time travel or other foreknowledge of the future. While the notion of time travel to the future complies with the current understanding of physics via relativistic time dilation, temporal ...
Physical paradox. The tea leaf paradox is the phenomenon by which tea leaves in a cup of tea migrate to the center and bottom of the cup after being stirred, rather than being forced to the edges as would be expected in a spiral centrifuge. A physical paradox is an apparent contradiction in physical descriptions of the universe.
Canyon Barry is a part-time basketball player. Barry, who will take the courts at the Paris Games searching for a 3x3 gold medal for the U.S. men's team, has an undergraduate degree from the ...