How Do You Make A Paper Popper?

A paper popper is a party prank usually practiced in government school.  While making a party popper, a sheet of paper is folded, wrapped up and thrusted down, making air to be forced into the papers folded flaps. While doing this, the paper flaps out in the other side at a high speed, causing a loud popping noise.

It is wrongly believed that the sound is created by the paper breaking the sound barrier.  What actually occurs is that air speeds up in a blast wave to fill the vacuum created in the pouch that opens.

All one needs to make a paper popper is made with the help of a regular sheet of paper. The link www.noiseguy.compaperpopper.html gives you in a detailed manner with pictures, about how to make a paper popper.