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  • 1. Fluorescent Droplets An exercise in strobe photography by David Herzka and Allan Feldman
  • 2. Setup
    • Strobe light roughly synchronized with rate of release of fluorescent droplets from funnel
    • Funnel’s flow regulated by sponge
  • 3.  
  • 4.  
  • 5. Observations
    • You can see acceleration due to gravity as the drops are moving faster as time passes.
    • You can see that the shape of the droplets changes as the droplets fall.
  • 6.  
  • 7. Strobe Photograph
    • Long exposure strobe photograph
      • Length of fall of a drop
    • Acceleration due to gravity
    • Change of shape of drop
    • View of the descent of a single drop of fluorescent liquid
  • 8. Splashing Droplets The droplets have initial horizontal and vertical velocities from splashing out of the water. The initial velocities are different for the two drops, so the resulting parabolas are different in shape.
  • 9.