Canine âMinionâ co-sleeps with a woman. Dogs may add a valuable treatment option for patients with sleep disorders, the authors say, in view of their ability to enhance human comfort levels. Photo published with permission of human subject.
What is the World's Record for the most Ping Pong bounces? My friend and I are trying to see if we can break the world's record for the most ping pong bounces between two people. I know that in 1993, two people beat it at 178 but, my friend and I got 376 in a row. So what is the record? It can't be 178, that's too easy.
Assuming that the experiments are properly controlled, that is, everything but the ball type is the same, then what is different is how much energy is lost in the ball. Ping-pong balls are very stiff and springy -- they lose only a small fraction of their energy when they bounce on a hard surface. On a soft, squishy surface, the ping-pong ball may bounce less well (but then again, the other balls may bounce less well also). Some surfaces are very complicated, like a mattress.