The world machine. The first phase: the cosmic mechanism (1907)
Snyder, Carl, 1869-1946 · London, New York [etc.] Longmans, Green, and co. · leaf 110
m that the extent of the moonssurface visible to us depends on the direction of the source ofillumination—that is, the sun. So, as the moon swings in itscircle, it will reach its first ** quarter in a little shorter timethan it passes from this to the second quarter, or full moon.This is clear from… … Fig, 8. Now, unless the sun be at an infinite distance from both theearth and the moon, it is clear that the time of passage from anew moon at N to its first quarter at D must be a little lessthan through a full quarter of its orbit, i.e. to H; so the timefrom the first quarter will be a little…
Cosmology · Celestial mechanics · Science
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