Kepler Clock
- March 6, 2015
- 6 replies
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Kepler сlock are a traditional clock with arrows and dial. The difference is that a Kepler clock face is not a circle but an ellipse with the numbers 1, 2, 3 ... 12 (I, II, III ... XII). Arrows (hour, minute and second) move in a circle uneven.
The length of the arrows also change as they move. Arrowheads describe an elliptical trajectory. Additionally on the dial displays sector, covering two adjacent hours between which at any given time is second hand. This sector is changing its location and shape of every five seconds, but its area remains constant according to Kepler's second law. These watches can hang in classrooms mathematics, planetariums, observatories, museums ...
More about Kepler Clock Case 7: Earth and Satellite Or Kepler's clock