capillary pump. Fun physical experience at home

ENTERTAINING EXPERIENCES AT HOME
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capillary pump. Physical experiments

Entertaining experiments in physics

Entertaining experiences at home / Physics experiments for children

For lifting and pumping liquids, there are a wide variety of pumps - different sizes and different designs. But the simplest pump, the pump with no moving parts, is the wick.

The action of this pump is based on the property of liquids to rise through thin, almost hair-thin, tubes. This occurs, of course, only if the liquid wets the walls of thin tubes well. Then, due to the surface tension, the liquid rises to a certain height until there is an equilibrium between this surface tension and the weight of the liquid column.

For our experience, take two glasses. Fill one of them with water and put it higher. Another glass, empty, put below. Dip the end of a strip of clean matter into a glass of water, and its other end into the bottom glass.

capillary pump

Water, taking advantage of the narrow gaps between the fibers of matter, will begin to rise, and then, under the influence of gravity, will flow into the lower glass. Here is a strip of matter and plays the role of a very simple pump, which was mentioned at the beginning.

Author: Rabiza F.V.

We recommend interesting experiments in physics:

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