21. Duke kills the Cycloid Emperor and is rescued by Graves just as the nuclear bomb explodes. 22. The cycloid was the next curve rectified; this was done by Christopher Wren in 1658. 23. Some also have a chin cycloid , delicate and easily sloughed off; some are scaleless. 24. The resulting motion is a cycloid . 25. A classic example is Catalan's minimal surface, which passes through a cycloid curve. 26. In 1696, Johann Bernoulli posed the brachistochrone problem, the solution of which is a cycloid . 27. Ctenoid ( toothed ) scales are like cycloid scales, with small teeth along their outer edges. 28. Both cycloid and ctenoid scales are overlapping, making them more flexible than cosmoid and ganoid scales. 29. Would they be cycloids too ? talk ) 19 : 37, 7 June 2010 ( UTC) 30. It has the special property of being the minimal surface that contains a cycloid as a geodesic.
