Before Sally Ride spent a week aboard the Challenger shuttle in 1983 and became the first American woman in space, NASA engineers asked her if she wanted a hundred tampons in her flight kit. “No,” she later recalled responding, “that would not be the right number.” They said they wanted to be safe. “Well,” she assured them, “you can cut that in half with no problem at all.”

“Utter damned rot!” is what William Berryman Scott, a former president of the American Philosophical Society, said in response to Alfred Wegener’s theory of continental drift, first proposed in 1912. “Wegener is not seeking the truth,” said a doubtful geologist, “he is advocating a cause and is blind to every argument and fact that tells against it.”

Hero of Alexandria invented the aeolipile, a primitive steam engine, in the first century. A hollow sphere with elbow-shaped tubes mounted on an axle and suspended over a cauldron of boiling water, the engine likely could not have powered anything. “It should probably be remembered,” wrote historian William Rosen, “as the first in a line of engineering dead ends.”

In 1986 a Greek professor encountered a previously unknown word while deciphering a fifth-century lexicon olisbokollix, meaning “loaf-of-bread dildo.” Later discovery of vase paintings showing women carrying baskets of phallus-shaped loaves confirmed the word had been understood correctly.