CHRISTIANI HVGEKII … Licebit autem aliter quoque, per inventa punda, cycloidem defignare. Defcribatur circulus diametro a b , quas dimidiae longi¬ tudini perpendiculi aequalis fit. In cujus circumferentia fumptis partibus aqualibus quotlibet, ac,cd, de, ef, ag, gh,hi, i k, jungantur gc,hd,ie,kt, quae erunt inter fe…
Clocks and watches · Pendulum
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