ObTomScott: The Lava Lamps That Help Keep The Internet Secure
https://www.youtube.com/watch?v=1cUUfMeOijg
(Mention of the London pendulums at 2:39)
https://www.youtube.com/watch?v=1cUUfMeOijg
(Mention of the London pendulums at 2:39)
Method for seeding a pseudo-random number generator with a cryptographic hash of a digitization of a chaotic system