An easy introduction to astronomy for young gentlemen and ladies : describing the figure motions, and dimensions of the earth : the different seasons : gravity and light : the solar system : the transit of Venus and its use in astronomy : the moon's motion and phases : the eclipses of the sun and moon : the cause of the ebbing and flowing of the sea, &c. (1812)
Ferguson, James, 1710-1776 · Philadelphia : Johnson and Warner, Ann Cochran, printer · leaf 141
reby assure me that I am right....But nowa difficulty occurs to my mind, which I beg youwill remove. JV. Only tell it me, and I will remove it if I can. £• The Moon goes round the I^arth everymonth; and as the Earth goes rouncj, the Sun in ayear, the Moon must do so too. How happensit, that the… … 119 tove in its orbit as fast as it will, the Moon mustaccompany it* For you know if you put a peb-ble into a sling, and whirl it round your head, thepebble will go round and round your head, whetheryou stand still in one and the same place, or whe-ther you walk directly forward, or go round…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.