. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 雙子座 I did not realize how motley are the qualities that go to make up a human being. Now I am well aware that pettiness and grandeur, malice and charity, hatred and love, can find place side by side in the same human heart.”——W. Somerset Maugham, The Moon and Sixpence 那時我還沒意識到一個人的性格是極其複雜的。 「卑鄙與偉大， 惡毒與善良，仇恨與熱愛，是可以互不排斥地並存在同一顆心 裡的。 」——毛姆《月亮和六便士》 • 雙子座（Gemini） 、天貓座 （Lynx） 、麒麟座（Monoceros） 上次沒講 • 火星
mathematician who, as a child prodigy at age ten was studying calculus, tutored by his father. Clairaut read his first paper, Quatre problèmes sur de nouvelles courbes to the Paris Academy (1726) at the age of 13. He accompanied Maupertuis on an expedition to Lapland to measure the length of the meridian. From this experience, he began a book (1743) on the shape of the rotating earth under the influences of gravity and centrifugal forces. Further, he showed how to measure the shape by use of measurements of the effect of gravity at different location on the swing of a pendulum. He also determined the first reasonable value for the mass of Venus, an improved value for the mass of the moon, and predicted the timing of the return of Halley’s Comet. David Fabricius Died 7 May 1617; A German astronomer, friend of Tycho Brahe and Kepler, and one of the first to follow Galileo in telescope observation of the skies. He is best known for a naked-eye observation of a star in Aug 1596, subsequently named Omicron Ceti, the first variable star to be discovered, and now known as Mira. Its existence with variable brightness contradicted the Aristotelian dogma that the heavens were both perfect and constant. With his son, Johannes Fabricius, he observed the sun and noted sunspots. For further observations they invented the use of a camera obscura and recorded sun-spot motion indicating the rotation of the Sun. David Fabricius, a Protestant minister, was killed by a parishioner angered upon being accused by him as a thief.