These symmetries contain an element known as time reversal.

Including time reversal there are 1651 magnetic space groups in 3D .

He speculated that an observer who traveled faster than light would see time reversal, similar to a cinema film being run backwards.

This process is the time reversal of annihilation.

This section was built to enable trains to avoid the time consuming reversal at Wimborne.

Scientists who study time reversal often use the example of two billiard balls on a table to explain their theories.

The time reversal of a black hole would be a hypothetical object known as a white hole.

Classical variables that do not change upon time reversal include:

On the other hand, for time reversal, the time-component of the momentum is the energy.

Order of localized spins breaking spatial inversion and time reversal.