WATCH: Man strikes molten metal with bare hands, Elon Musk responds on Twitter

• Old video of man playing with molten metal with bare hands has resurfaced.
• Twitter account @gunsnrosesgirl3 explains phenomenon Leidenfrost effect.
• Elon Musk says 'don’t try this at home'.

A Twitter account "science girl" has explained an old viral video showing a man slapping molten metal.

In the video, a man, seemingly a worker in a factory, can be seen smacking molten metal with his bare hands without being harmed. He even showed his hand to the camera which was unharmed.

The video has shocked people over the internet with the video garnering more than 3.5 million views.

To explain the phenomenon, Science Girl posted the video again.

The phenomenon is called Leidenfrost effect. 

The caption explains “A really dramatic example of the Leidenfrost effect. The moisture on his skin boils instantly, forming a layer of steam that insulates for a very short time, a temporary barrier between this person and the molten metal.”

Netizens have reacted to this tweet, billionaire Elon Musk, was one of the people who responded to the tweet, saying: “Don’t try this at home.”

NDTV reported that the man was identified as an Armenian steelworker named Arkady Mgdsyan. The liquid metal was molten steel, which was around 1,370 degrees Celsius.