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  1. S

    Laser over water: what gives best reflection and minimal upsetting fish

    Hi Can anyone work out (or have any ideas about) what laser set up would be best reflection off a night ocean surface with minimal disturbance of the fish? the aim is to see the shape of the oceans surface but without lighting up a darkened ocean or attracting the predators in particular. If...
  2. S

    Can laser be seen? Exp opinion appreciated

    I am going to try to use a 200 mW red laser from the centre of a football oval and rotate the laser slowly so it can be seen by players running around the boundary to keep them at a pace if they run with the laser. Does anyone know if, in daylight, the players will be able to see the laser...


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