Keywords: Centrifugal machime, after W.J. 's Gravesande's prototype (close-up).JPG Centrifugal machime after W J 's Gravesande's prototype by Adam Steitz Amsterdam 3/4 18th century Apparatus designed to demonstrate and measure the force acting on a mass in uniform circular motion to this end the sliding weights the counter-weights the radial distances from the center and the angular velocity can all be altered Above each axis is a bell and trigger which is released when the force reaches a certain amount In this manner Christiaan Huygens' formula F~m r/t2 can be verified own 2011-12-23 13 41 24 AlfvanBeem Cc-zero Instruments in the Teylers Museum Culture photographed by Alf van Beem |