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Maths Object: Correntator

Here’s another one of my favourite maths objects: the Correntator. It’s a simple mechanical tool to add up amounts of money. I bought it for about a tenner (new money) at a market.

This video is extremely shonky. Blame my phone, which can’t bring itself to record for more than 250 seconds at a time.

More information about the Correntator.

Maths Objects: polyhedra

Time for some more maths objects! This time I wanted to show you the various polyhedra I’ve got around my desk.

Maths Object: “Groups”, by Georges Papy

I had the idea of doing short videos about mathematical objects I’ve got lying around. First up is a very unconventional group theory textbook.

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