《A New Astronomy》Todd, David P. 电子书txt下载、在线阅读、内容简介、评论读后感-当当读书

A New Astronomy

Todd, David P.

内容简介

They are not all at the same level. Earlier stages of cosmic life are characterized by intense heat; but as development of the moon progressed, original heat gradually radiated into space, leaving her surface finished. Evidently she has gone through experi ences some of which the earth may already have known, and through others still in our remote future. Matterhorn. the moon in 1647. Being so much smaller than the earth, as well as less in mass, our satellite cooled much faster than the parent planet. A few surface features are to be explained as due to the consequent shrinkage. Maps and Photographs of the Moon.--All the lunar mountains, plains, and craters are mapped and named; and astronomers are quite as familiar with 'Copernicus' and 'Eratosthenes' (a great crater, and a mountain nearly 16,000 feet high) as geographers are with Vesuvius and the Hevelius of Danzig made the first map...

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