I was at Great Exhibition Road Festival at the weekend, commissioned by Imperial College to devise an optical illusion workshop in partnership with neuroscientists Anirudh Kulkarni and Mathilde de Kerangal. I got kids creating hypnotic spinning record player animations by tracing around bicycle cog teeth and using mobile phones to film the resulting drawing at different speeds on the decks. The combination of video frame rate, record speed and number of cog teeth created the illusion of movement in different directions to the turntable. Simple but weirdly effective! Not captured here: the lovely “oooh!” sound visitors made when they realised the spinning patterns came alive when viewed through their mobile phones! @exrdfestival #exrdfest @imperialcollege @instantwarhol @la_reine_et_l_oiselle @cliveandrews #opticalillusion #opticalillusions #phenakistoscope #phonotrope #animation #phasepatterns #trippy #artworkshop #childrensart #stem #steam (at Imperial College London) https://www.instagram.com/p/CfGxsMJIOtE/?igshid=NGJjMDIxMWI=
