How does dynamo do the super hot hand trick?

Oh, dude, the super hot hand trick by Dynamo is just magic, like literally. He probably uses some sleight of hand, misdirection, and maybe a little bit of wizardry to make it seem like his hand is heating up. But hey, a magician never reveals his secrets, right? Just enjoy the show and don't try this at home, unless you want to burn your hand for real!