Half a croissant, on a plate, with a sign in front of it saying '50c'
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Hand Washing Ritual Database

to save video of hand washing rituals
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People practice tooth brushing and hand washing more regularly and over a longer period of time than any other physical activity I can think of. Both involve regular, swirly loop motions in the body. You could have a website that was dedicated to preserving for posterity the swirly loops that people make through a life time of practice. Otherwise all of this great hand washing information is going to go to waste.
JesusHChrist, Oct 10 2017

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       Or have a basin-mounted theremin and record the sounds generated as a result of your hand-washing movements
hippo, Oct 10 2017
  

       For the Theramin, I wonder if you could somehow combine the vectors of proximity with some kind of electrical current going through the water to your hands, to adaptively change the pitch, tone and volume of the sound.
JesusHChrist, Oct 10 2017
  

       //all of this great hand washing information is going to go to waste//   

       Oddly enough, there was quite an expensive study done in the 1990s on the kinematics of hand washing, specifically in the context of infection control in hospitals. Vast amounts of data were garnered by analysing videotapes of surgeons and nurses washing their hands, with the intent of analysing the data to find faster, more efficient ways to hand-wash effectively.   

       Some of the tools used in motion capture for films were actually developed by this study, in order to build computer models of handwashing.   

       The ultimate conclusion of the study was that it was important, when washing hands, to ensure that the entire hand was washed. Deep.
MaxwellBuchanan, Oct 10 2017
  
      
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