Physics

2022-08-16 14:00:03 Partial Vacuum

How it works:
Burning paper heats the air molecules in the bottle, setting them in motion so they begin to repel each other. Some of the air escapes through the gaps between the egg and the neck of the bottle. When the flame goes out, the air molecules cool down and attract each other.

The air from outside the bottle rushes into it, but the egg blocks its path. The pressure of the air molecules outside the bottle is so strong that they literally push the egg inside the bottle. Открыть/Комментировать

2022-06-24 17:02:02 Mesmerizing sound installation. Открыть/Комментировать

2022-06-24 14:02:02 Solar System Bodies on a Scale. Открыть/Комментировать

2022-06-23 21:02:02 Angular cubic prism

A beam of light entering a mirrored reflective prism always exits along a parallel path. Открыть/Комментировать

2022-06-23 17:02:01 Creating artificial lightning. Открыть/Комментировать

2022-06-23 14:02:01 Why does this happen?

The wind blows and hits the surface of the dam, but the shape of the dam is curved, so the wind goes straight up, as if changing its direction across the surface of the dam.

As a result, a huge amount of wind is ejected at the very top end of the dam. Открыть/Комментировать

2022-06-22 21:02:02 Laser engraving

If the laser is powerful enough, it can engrave various forms of materials quickly and efficiently. Открыть/Комментировать

2022-06-22 17:02:01 Micro turbojet engine in the garage. Открыть/Комментировать

2022-06-22 14:02:02 5 kW induction heater

Induction heating is the process of heating an electrically conductive object (usually metal) by electromagnetic induction, due to the heat released in the object by eddy currents. Открыть/Комментировать

2022-06-21 21:02:01 Simple unipolar motor. Открыть/Комментировать