Egg in a bottle. Fun physical experience at home

ENTERTAINING EXPERIENCES AT HOME
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Egg in a bottle. Physical experiments

Entertaining experiments in physics

Entertaining experiences at home / Physics experiments for children

This is a very famous experiment, which still makes a strong impression - especially on those who have little understanding of physics...

Boil the egg hard. Take an empty kefir bottle. Peel the egg from the shell. Take a sheet of paper, twist it into a tube, set it on fire and quickly lower the burning paper into the bottle (need I say that this experiment is best done in the presence of adults?).

Wait for the paper to burn through and then place the peeled egg on the neck of the bottle. A little time will pass, and - oh, miracle! - the egg will squeeze through the neck into the bottle.

You obviously guessed what it was. When the paper burned, the air inside the bottle warmed up and, expanding, came out. When we plugged the neck of the bottle with an egg, the air inside the bottle, gradually cooling, began to compress, its pressure became less than atmospheric pressure, and the egg was sucked inside.

Now here’s the task: will any of you be able to bring the egg back out? And if it succeeds, then wouldn’t it be worth showing this experience to preschool children, framing it as a spectacular trick?

Author: Rabiza F.V.

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Found the most powerful source of energy 13.11.2017

Israeli and American physicists have shown that as a result of the fusion of quarks, up to 10 times more energy is released than in the process of thermonuclear fusion.

The authors came to similar conclusions by analyzing the merger of two short-lived heavy baryons. It turned out that the birth of such particles, which occurs as a result of the fusion of lighter ones, is accompanied, like a thermonuclear reaction, by the release of a large amount of energy.

Since quarks are not observed in the free state, there are no practical applications for this yet. Meanwhile, scientists note that their work confirms that stable forms of exotic matter exist in the Universe.

Quarks form hadronic matter, in particular, the nucleons (protons and neutrons) that make up atomic nuclei. Quarks are observed in a free state, this property, called asymptotic freedom, manifests itself in an increase in the interaction force as particles move away from each other.

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