The structure of the stream. Fun physical experience at home

ENTERTAINING EXPERIENCES AT HOME
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The structure of the stream. Physical experiments

Entertaining experiments in physics

Entertaining experiences at home / Physics experiments for children

A thin trickle of water flows from the faucet. We see that at first it is even, smooth, and a little lower we notice flickering thickenings and interceptions on it. But the impression that the jet is continuous still remains. In fact, the jet, after the beginning of interceptions and thickenings, is no longer continuous. First, narrow intercepts formed in the jet, then it broke up into small parts, which, under the action of surface tension forces, immediately turned into spherical drops. From such a restructuring, the drops come into a rapid oscillation, which, if it is well amplified, can be heard like a musical tone.

Jet structure

A continuous stream seems to us along its entire length because these individual drops rush past our eyes at high speed and, as it were, merge into a continuous stream. To make sure that this is exactly the case, to see individual drops in a decaying jet, you can photograph it in a special way with a flash lamp. The photograph shows very clearly the individual particles of the jet, which have taken the form of round drops.

Author: Rabiza F.V.

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