How far does a World War II battleship firing a broadside of nine 16-in shells recoil?

How much is the Earth shrinking due to all of the oil that humans pump out each year?

Look for the answers online at Question suggestions are always welcome! For more Fermi questions and answers, see the now available Guesstimation 2.0: Solving Today’s Problems on the Back of a Napkin, by Lawrence Weinstein (Princeton University Press, 2012).

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