A New Astronomy

Автор: David P. Todd
Издательство: American Book Company
Страниц: 500
Год: 1899
Размер: 19,5 МБ

NEGLECT hitherto of the availability of astronomy for a laboratory course has mainly led to the preparation of this New Astronomy. Written purely with a pedagogic purpose, insistence upon rightness of principles, no matter how simple, has everywhere been preferred to display of precision in result. To instance a single example : although the pupil's equipment be but a yardstick, a pinhole, and the l rule of three, 1 will he not reap greater benefit from measuring the sun for himself (page 259), than from learning mere detail of methods employed by astronomers in accurately measuring that luminary ?...