Susan, a dental student in Redlands, California, asks about acetabulum, the anatomical term for the hip socket. It goes back to the Latin acetabulum, a vinegar cup, the small table vessel Romans used for dipping bread. Its cup shape made a natural...
What was your first word? Grant and Martha talk about how children acquire language. Also, if you say that something’s in your wheelhouse, you mean that it’s within your area of expertise. But why “wheelhouse”? And what does...
