'Mad scientist' causes minor explosion... upsets son

A funny video has emerged of a famous 'mad scientist' YouTuber causing a minor explosion and scaring his six-year-old son.

Jacob The Mad Scientist from Australia was filming an episode of Make Science Fun for his YouTube channel when something went wrong.

Jacob accidentally set off a explosion of Touch Powder, otherwise known as pixie dust, which is made from ammonia and iodine and is an extremely unstable material which explodes into a big puff of purple gas when lightly touched.

Fortunately, neither Jacob or his son Samuel were injured, but Samuel was a little upset.