Protractor

A protractor was a mathematical instrument used in schools. According to Susan Foreman's diary, Francis Minto shoved a protractor into Gillian Roberts's buttocks in mid-March 1963, and she destroyed her desk in rage. Mr Grange strapped her three times across the palm of her hand for vandalising school property. (PROSE: Time and Relative)
Category:Mathematics from the real world
Category:Human technology
Category:Technology from the real world