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population I and II

(Encyclopedia)population I and II, in astronomy: see stellar populations. ...

speed

(Encyclopedia)speed, change in distance with respect to time. Speed is a scalar rather than a vector quantity; i.e., the speed of a body tells one how fast the body is moving but not the direction of the motion. If...

Aholah and Aholibah

(Encyclopedia)Aholah əhōˈlə [key], in the Bible, the sisters in an allegory on Israel's idolatry. ...

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