The quest for truly random numbers is something to which scientists and engineers have devoted a lot of time and effort. The trick is to find an unpredictable source of naturally occurring noise that ...

At first, these images look like a 21st century ink-blot test, designed to test the viewer's unconscious mind with random patterns and shapes. They were even created by an American psychologist Mark ...

Campers often expect campfire smoke to rise straight up or drift gently with the wind, but mountain valleys behave very differently. Their narrow walls, shifting temperatures, and irregular terrain ...