A dragonfly has a lifespan of 24 hours.
A goldfish has a memory span of three seconds.
A dime has 118 ridges around the edge.
The name for Oz in the “Wizard of Oz” was thought up when the creator, Frank Baum, looked at his filing cabinet and saw AN, and OZ, hence “Oz.”
The microwave was invented after a researcher walked by a radar tube and a chocolate bar melted in his pocket.