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Why don't we see the effect of the gravitational force between the objects in a spacecraft?Previous Question

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Why don't we see the effect of the gravitational force between the objects in a spacecraft? Q&A Main Index How cold is liquid nitrogen?

What is a lattice vibration?

The atoms in a crystal are not locked into a rigid pattern but can oscillate around their average position. When a whole group of them does this in a synchronized way we call it a lattice vibration.

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Nathan Isgur, Theory Group Leader (Other answers by Nathan Isgur)

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