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Browsing: Diary of John Quincy Adams, Volume 2


Docno: ADMS-03-02-02-0001-0010-0008

Author: Adams, John Quincy
Date: 1786-11-08

8th.

Mr. Williams gave a public astronomical lecture this afternoon, relating to the different theory's of the planetary System; he gave an account of the Ptolemean, the Tychonic,1 and the Copernican. There was little more than what may be found in most astronomical books; but the lecture was entertaining and was { 123 } very à propos, as it relates to the public course, and, to the book, which we have just begun to study.
Weather very comfortable.
1. A via media between the Ptolemaic and Copernican systems, devised by the 16th-century Dutch astronomer Tycho Brahe, who believed that five planets rotated about the sun, which in turn circled around the immobile earth.