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by Ciro Santilli (@cirosantilli, 37)

Time reversibility

 ... Natural science Physics Statistical physics Thermodynamics Entropy Second law of thermodynamics
 1 By others on same topic  0 Discussions  Updated 2025-05-29  +Created 1970-01-01  See my version
  • Table of contents
    • Arrow of time Time reversibility
    • Time reversibility of classical mechanics Time reversibility
    • Time reversibility of gravity Time reversibility

Arrow of time

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Time reversibility

Time reversibility of classical mechanics

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Time reversibility
Considering e.g. Newton's laws of motion, you take a system that is a function of time f(t), e.g. the position of many point particles, and then you reverse the speeds of all particles, then f(−t) is a solution to that.

Time reversibility of gravity

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Time reversibility
physics.stackexchange.com/questions/288339/does-gravity-break-time-reversibility-on-the-microlevel
I guess you also have to change the sign of the gravitational constant?

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Time reversibility by Wikipedia Bot 0  1970-01-01
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