Contrary to popular myth, table tennis or "ping-pong" balls are hollow and contain only regular air on the inside. However, when put to a lighter or flame, ping-pong balls ignite and burst into flame.
Standard ping-pong balls measure 40 millimeters in diameter and weigh 2.7 grams. Ping-pong balls have a matte finish and are made of celluloid plastic, which is flammable. This is the actual reason for the explosion. They are less dangerous to burn than older ping-pong balls, which consisted of acidified celluloid that became increasingly unstable over time; the slightest spark or heat from friction often ignited the balls.Learn More
Putting spin on a ping pong ball requires a stroking movement of the paddle against the ball when hitting it. The paddle must be angled and then brushed across the ball to add spin. With practice, backspin, topspin, and sidespin can be applied to a ping pong ball.Full Answer >
Balls, including ping pong balls, bounce after they hit a solid surface because an equal and opposite force from the surface pushes them back upward. Ping pong balls have a tendency to bounce well because they're made out of a plastic material that is especially stiff and springy.Full Answer >
The standard ping-pong table has a playing surface that measures 9 feet long by 5 feet wide. The top of the table needs to be 30 inches from the floor.Full Answer >
Celluloid is used to make ping pong balls. Celluloid is nitrated cellulose that has been mixed with camphor to give it the texture of plastic.Full Answer >