On a table there is an empty tin can with a small hole in the lid, which is filled from below with hydrogen. Since the hydrogen is very light, it flows through the small hole and out the top of the tin, where it is ignited. After 15 seconds of burning it is possible to hear a low whistling and then a loud bang!
How does it work?
The hydrogen gradually escapes through the small hole and burns. On the bottom there is a narrow slit between the can and the table top from which air is sucked in. The air and the hydrogen mix with each other until a certain point where an explosive mixture exists, in which hydrogen and oxygen are present in a proportion of 2:1, creating the so-called "oxyhydrogen". The oxyhydrogen flows through the hole, then the flame flows into the can and the rest of the oxyhydrogen explodes!
