A Method Of Making Computer Algorithms More Random

There is a company that utilizes measuring many lava lamps in order to better have randomized numbers instead of more traditional coding methods. Ah!  I found the google results:

Lavarand, also known as the Wall of Entropy, is a hardware random number generator designed by Silicon Graphics that worked by taking pictures of the patterns made by the floating material in lava lamps, extracting random data from the pictures, and using the result to seed a pseudorandom number generator.