In Homer’s Iliad, Helen had a “face that launched a thousand ships.” A millihelen, then, measures the beauty needed to launch one ship. The Sagan unit is used to denote any large quantity (in place of “billions and billions”). A New York Minute measures the period of time between a traffic light turning green and the cab behind you honking. Invent a new unit of measurement. How is it derived? How is it used? What are its equivalents?