It’s quantum, it’s chaotic, it makes for a great source for a random number generator, and there are already dozens of prototype circuits around the Internet. [Ian] took one of these circuit ...

There are a great variety of ways to build a random number generator, and similarly many ways to generate numbers that appear random, but in a pure mathematical sense generally aren’t.

only the difference of a few milliseconds between keystrokes is enough to seed a random number generation routine with a different starting number each time. Once seeded, an algorithm computes ...