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, November 7, 2017
Can I Get It On A Watch?
Today's Astronomy Picture of the Day shows the famous astronomical clock in Prague. An astounding mechanism and a beautiful piece of art to boot!