Jules Archer, The Mistake of Christopher Columbus
“ A little scientist with a high neck and a squint jumped up. "When a partial eclipse of the moon takes place, the shadow of the earth on the moon is a circle. Only a ball-shaped object can throw a circular shadow, gentlemen!""Poppycock!" scoffed a scientist next to him. "So can a flat disk. Furthermore, who is an authority here on what happens on the moon? Moon-gazing is guesswork, gentlemen—sheer guesswork!" ”
