These great hollow globes of artificial super-metals, and artificial transparent adamant, ranged in size from the earliest and smallest structures, which were no bigger than a very small asteroid, to spheres considerably larger than the Earth. (Olaf Stapledon, STAR MAKER)
Tuesday, March 8, 2016
Pinhole Eclipse
Today's Astronomy Picture of the Day shows the partly-eclipsed Sun projected through the threaded holes of blinds, viewable as a strip of images on the floor.
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