video thumbnail 3:59
The Lava Lamps That Help Keep The Internet Secure

2017-11-06

[public] 2.79M views, 131K likes, 908 dislikes audio only

channel thumbTom Scott

At the headquarters of Cloudflare, in San Francisco, there's a wall of lava lamps: the Entropy Wall. They're used to generate random numbers and keep a good bit of the internet secure: here's how.

Thanks to the team at Cloudflare - this is not a sponsored video, they just had interesting lava lamps! There's a technical rundown of the system on their blog here: https://blog.cloudflare.com/lavarand-in-production-the-nitty-gritty-technical-details

Edited by Michelle Martin, @mrsmmartin

🟥 MORE FROM TOM: https://www.tomscott.com/

(you can find contact details and social links there too)

📰 WEEKLY NEWSLETTER with good stuff from the rest of the internet: https://www.tomscott.com/newsletter/

❓ LATERAL, free weekly podcast: https://lateralcast.com/ https://youtube.com/lateralcast/

➕ TOM SCOTT PLUS: https://youtube.com/tomscottplus

👥 THE TECHNICAL DIFFICULTIES: https://youtube.com/techdif


Tom Scott Hi, I'm Tom Scott. These are some of the things I've made and done. They'll probably come back to haunt me in a few years' time. Contact me: https://www.tomscott.com/contact/ • • • This channel is a production of Pad 26 Limited, registered in England and Wales, № 11662641. Registered office: Amelia House, Crescent Road, Worthing, West Sussex, BN11 1QR (This address is only for legal documents; no other mail will be forwarded.)
/youtube/channel/UCBa659QWEk1AI4Tg--mrJ2A
I took a ride on a moving radio telescope 1,862,784 views
/youtube/video/6o38C-ultvw
The "rotary jail" had a slight problem 5,888,570 views
/youtube/video/-DGXHMOhXAw