Read my posts about technology, gadgets and the internet.


The lava lamps that help keep the internet secure

More educative entertainment from Tom 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.

The difficulty of generating properly random numbers reminds me of one of my favourite books.