Numbers that are truly random are hard to come by — even a roulette wheel's results can be predicted if you have the right information. But researchers have been able to find pure randomness ...

A new laser’s chaotic light beam lets the device generate multiple number sequences at once, similar to throwing multiple dice at a time.

Using a single, chip-scale laser, scientists have managed to generate streams of completely random numbers at about 100 times the speed of the fastest random-numbers generator systems that are ...