John Bemelmans Marciano gave up writing the popular “Madeline” children’s books that his grandfather began, to write a book about America’s several attempts to go metric, “Whatever Happened to the Metric System?” He talked with CNN’s Moni Basu and Nick Scott:
“People say the metric system makes sense,” Marciano says, “But in nature we don’t think about dividing things by 10, do we? We think of halves and feet and thirds.”
Acres, for instance, were based on the amount of land a man could plow in a day.
And Fahrenheit is a more human system for measuring temperatures, with about 100 degrees of measurement for temperatures experienced around most of the inhabited world, more than twice the number of units available in Celsius.