The top plane of the first "Automatic Totalisator," designed by George Julius (1913). It was a mechanical computer designed for calculating and displaying bets at horse races.

There are more really awesome pictures of it, at this link:
https://www.cs.auckland.ac.nz/historydisplays/SecondFloor/Totalisators/FirstJulius/FirstJuliusMain.php#tickets

Mathematics/Design

⟢⟢ᚖ⟡⟡ᚖ⟡⟡ᚖ⟡⟡ᚖ⟡⟡ᚖ⟡⟡ᚖ⟡⟡ᚖ⟡⟡ᚖ⟡⟡ᚖ⟣⟣
Text art: objkt.com/@sinusoidalsnail

incredible machinery, i'd like to hear what it sounds like when computing those calculations

artist, developer & optimist • /gen-art • /geometric • /cassettefuturism • /ink • https://warpcast.com/comz •

Hmm probably more “clank clank clink clink, and less “boop boop beep beep.” 🤔

probably! with that much machinery, it could have sounded like a roaring jet engine at 180 decibels 😅