Archimedes Spiral Clock

Using a spiral arm to tell the time is a novel and mathematically satisfying experience. The spiral here is an archimedean spiral

The spiral arm intersects with the numbers to tell the hour,  minutes are indicated by the normal arm in the middle.

This clock comes with a 10 year guarantee and a leaflet with some mathematical ideas to explore - in a classroom or at home.

A perfect gift for the nerd of any discipline - and for yourself of course! 

See below the Fibonacci Spiral Clock and Hyperbola 'X' Clock we also sell.