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Divisibility

المؤلف:  GEORGE A. HOADLEY

المصدر:  Essentials of Physics

الجزء والصفحة:  P-16

2025-10-19

517

Bodies can be divided into smaller parts without changing the matter composing them. Divisibility by mechanical means has practically no limit. The finest crayon dust is made up of small bodies of chalk, as may be seen by examining it with a microscope.

Demonstration. - Drop a little red ink upon the surface of water in a beaker. It will mix gradually, and a thread of colored water will pass slowly downward. Let the beaker stand undisturbed for a few days, and the ink will be distributed uniformly throughout the water. Its finely divided state is shown by the fact that every drop of the solution is visibly colored.