Cloudflare, a company that provides cybersecurity services uses a wall of lava lamps in its headquarters to generate true ...

Jones: That's me and my boss opening up a lava lamp. [glugging] Oh! Are we getting these noises, guys? Our goal was simple: to figure out what's inside. As it turned out, it actually wasn't simple ...

Jones: That's me and my boss opening up a lava lamp. [glugging] Oh! Are we getting these noises, guys? Our goal was simple: to figure out what's inside. As it turned out, it actually wasn't simple ...

The company needed some truly random numbers for its security solutions, so it turned to some groovy old tech: lava lamps. In their office is a wall of 100 lava lamps monitored by cameras.