XV. Astronomy: 894.
894.
How shadows are lost at great distances, as is shown by the shadow side of the moon which is never seen. 467
The archive, offline Own the Wisdom of the Ages Every text in the library on a single USB drive. Read offline, cite freely, keep forever. No subscription required. Get the drive $127.00How shadows are lost at great distances, as is shown by the shadow side of the moon which is never seen. 467
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