Prompted by a stupid tweet by QI on twitter ("If the 5 trillion spiders in the Netherlands took to eating humans rather than insects, they’d consume all Dutch people in just three days." - twitter.com/qikipedia/status/9), I reckon that it'd take the UK's window cleaners 2.5 months to cover the distance to the moon if they did that instead of climbing ladders

A Mastodon instance for maths people. The kind of people who make $\pi z^2 \times a$ jokes.

Use $and$ for inline LaTeX, and $and$ for display mode.