Word: schiaparelli
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Dates: during 1920-1929
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...Schiaparelli, in 1890, and Percival Lowell, at the Flagstaff Observatory from 1896 to 1909, reached the conclusion from a study of the markings on the planet Venus that the period of rotation of Venus on her axis is the same as her revolution around the sun. Slipher confirmed this by spectroscopic analysis. Now if Venus turns on her axis once while she is revolving once around Old Sol, it is obvious that the same face of the planet is always turned toward him. In other words, one side has been baked by the sun's heat for countless aeons...