The jet controls. Fun physical experience at home

ENTERTAINING EXPERIENCES AT HOME
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The jet controls. Physical experiments

Entertaining experiments in physics

Entertaining experiences at home / Physics experiments for children

Make a small device. On experience with it, you will see how you can control water jets with a stream of air.

You need to take a table tennis ball and cut a hole in it according to the size of a water tap or washbasin. In the lower part of the ball under the hole made, drill three small holes in one row at a small distance from each other. Insert pieces of a thin rubber tube 1 centimeter long into the extreme holes. And in the middle hole (it should be larger than the extreme ones), insert a thicker rubber tube. Its inner diameter is two to three times the diameter of the tubes in the side holes, and its length is 20 centimeters. The middle tube must be passed through a specially drilled hole in the ball on the side, and its other end should protrude from the lower hole and be flush with the side short tubes. Lubricate all the joints of the tap and tubes with the ball with plasticine.

jet controls

When everything is ready, open the faucet slightly. By adjusting the pressure of the water, the inclinations of the small tubes, ensure that the two jets flow out without touching each other, parallel to each other.

Now start blowing into the middle tube. The air jet has a high speed. The air pressure between the water jets will decrease, and the outside pressure will press on the jets and bring them closer together. It is also possible to achieve a complete merging of two jets into one, if you blow harder into the tube. Stop blowing - the jets will move apart.

Author: Rabiza F.V.

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