“There's a good Tom Scott video on this too.”
Tom Scott on Cloudflare's lava lamp entropy wall
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There's a good Tom Scott video on this too. Like most of his stuff, it's well worth the watch. this video
The Lava Lamps That Help Keep The Internet Secure
4.3M views · Nov 6, 2017 · 3:59 · 1 HN recommender · 3 mentions · discussed 2017–2024
Tom Scott visits Cloudflare's San Francisco office to show the wall of lava lamps whose camera feed is used as a source of entropy for random number generation. It is a short explainer on how this helps secure internet encryption.
Why Hacker News points people here: The go-to short explanation whenever lava lamps, entropy sources, or Cloudflare randomness come up.
“There's a good Tom Scott video on this too.”HN comment, 2017
What Hacker News said 3
“have some cameras pointed at lava lamps[0]”
Cloudflare uses cameras on lava lamps for randomness
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Alternatively, just do what Cloudflare does (did?), and have some cameras pointed at lava lamps[0]. [0]: this video
“(Mention of the London pendulums at 2:39)”
Tom Scott on lava lamps for security, mentions London pendulums
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ObTomScott: The Lava Lamps That Help Keep The Internet Secure this video (Mention of the London pendulums at 2:39)