Vase Tantalum. Fun physical experience at home

ENTERTAINING EXPERIENCES AT HOME
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Vase Tantalum. Physical experiments

Entertaining experiments in physics

Entertaining experiences at home / Physics experiments for children

At the end of the last century there was a toy called "Tantala Vase". She, like the famous "Carthusian diver", enjoyed great success with the public. This toy was also based on a physical phenomenon - on the action of a siphon, a tube from which water flows even when its bent part is above the water level. It is only important that the tube was first completely filled with water.

In the manufacture of this toy, you will have to use your skills as a sculptor. Plasticine is well known to you, you often sculpted animals and people from it, so you will not have any difficulties.

But where does such a strange name - "Tantala Vase" come from? There is a Greek myth about the Lydian king Tantalus, who was condemned by Zeus to eternal torment. He had to suffer from hunger and thirst all the time: standing in the water, he could not get drunk. The water teased him, rising to the very mouth, but as soon as Tantalus leaned a little towards her, she instantly disappeared. After some time, the water appeared again, disappeared again, and so it continued all the time. The same thing happened with the fruits of the trees, with which he could satisfy his hunger. The branches instantly moved away from his hands as soon as he wanted to pick the fruit.

So, on the episode with water, with its periodic appearance and disappearance, the toy that we can make is based.

Take a celluloid vessel from vegetable oil, cut off its upper part, wash it well and drill a small hole in the bottom.

If you do not have such a vessel, then you will have to take a liter jar and very carefully drill a hole in its bottom with a drill. With the help of round files, the hole in the glass can be gradually enlarged to the desired size.

Before sculpting a Tantalus figurine, make a device for releasing water. A rubber tube is tightly inserted into the hole in the bottom of the vessel. Inside the vessel, the tube is bent in a loop, its end reaches the very bottom, but does not rest against the bottom. The upper part of the loop should be at the chest level of the future Tantalus figurine. After making notes on the tube, for ease of use, remove it from the vessel. Stick around the loop with plasticine and give it the shape of a rock. And in front of it, place a figure of Tantalus molded from plasticine. It is necessary that Tantalus stands at full height with his head tilted to the future water level and with his mouth open.

No one knows how the mythical Tantalum was represented, so do not skimp on your imagination, even if it looks like a caricature. But in order for the figurine to stand steadily at the bottom of the vessel, fashion it in a wide, long robe. Let the end of the tube, which will be in the vessel, peek out imperceptibly near the bottom of the plasticine rock.

When everything is ready, place the vessel on a board with a hole for the pipe, and place a vessel under the pipe to drain the water. Drape these devices so that it is not visible where the water disappears.

When pouring water into the Tantalum jar, adjust the jet so that it is thinner than the jet that will flow out.

Vase Tantalum

You have an automatic siphon. Water gradually fills the jar. The rubber tube is also filled to the very top of the loop. When the tube is full, water will begin to flow out and will flow out until its level is below the outlet of the tube at the feet of Tantalus.

The outflow stops and the vessel is filled again. When the entire tube is filled with water again, the water will begin to flow out again. And so it will continue all the time while a trickle of water flows into the vessel.

Author: Rabiza F.V.

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