In this game of "quantum billiard balls," the photon was like the cue ball that smashed into two other balls (the atoms) ...

While that was good news for the sport, it also meant an increased demand for ivory that was used in making the billiard balls ... a Hyatt Celluloid Billiard Ball, it seems Hyatt never did ...

I have a set of billiard balls sitting on my desk in a box with a partially torn label on which the words “Hyatt” and “Billiard Ball Company” are clearly visible. That makes these balls ...

Mathematicians from the University of Amsterdam ran an experiment where a frictionless billiard ... bouncy and there are no other objects on the table other than the frictionless balls.