What happens when you swing your hand over a molten metal?

A man is able to put his hand in without being hurt by the special effect called Leidenfrost.

A much-watched video on LiveLeak shows a man in his hand who doesn't cut the molten metal completely without being injured, according to IFL Science.

Many people seem to disbelieve their eyes when they see the unscathed man in front of the hot red metal. Experts believe that he does not suffer burns because of the special effect called Leidenfrost.

Leidenfrost is the effect that occurs when the liquid comes into contact with the surface having a temperature much greater than its boiling temperature. At this point, a part of the liquid will evaporate, forming a thin insulating layer that makes small droplets "dance" around the extremely hot surface, instead of being evaporated immediately.

For example, when we drip water on an electric stove surface, the bottom layer of liquid immediately evaporates. This creates a protective layer of gas between the hot face and the rest of the droplet, thereby preventing their exposure and slowing the heat transfer process.

A man using his hand did not cut the molten metal without hurting.

For the man in the video, the moisture on his skin is immediately boiled in a very short time, forming a protective layer on the skin, preventing the hand from directly touching the molten metal.

If the man moves his hand through the fluid a little slower, it is more likely that the hand will burn badly. Therefore, experts recommend that people should not follow it because it is very dangerous.