how do the pop it’s work?

Question

Do you remember those pop it’s from when we (millennials) were kids? You throw them in the ground and they make a loud pop sound. How do those work?

In: 0

Answer 1

They had a small amount of low grade friction sensitive explosive in them, like capgun caps. Also in the paper pouch were little bits of ground stone or pumice, like kitty litter. When you threw the pop-it to the ground, the rocks rubbed again the explosive which went “bang.”