Watching ping pong matches is a lot of fun. The precision, the pace, the spin and the concentration needed and all that happening on a small table. Just take this amazing shot for an example. All this is made possible by a tiny little ball made up of celluloid, not simple plastic but celluloid. What's the difference, you ask?

Celluloid is nitrocellulose and camphor and filled with air

For more information, simply visit this Quora Page because, we want to tell you what would happen, if you filled it with liquid nitrogen, instead and left a little hole to let the gas escape.

Here is the video from The Backyard Scientist showing how fast the ping pong ball actually spin.




Have you tried any such experiments in your back yard? We are interested to know. Feel free to drop your comments below and also links to any videos you might have taken