A New Jersey man fell out of a 9th story window, landed on a BMW, and survived. How much force was exerted on him by the car?

My eye doctor now has a special bin to recycle contact lenses. Is this worth it? How many lenses would need to be recycled to account for the dedicated bin?

Look for the answers online at tpt.aapt.org under “Browse,” at the very end of the current issue.

Question suggestions are always welcome!

For more Fermi questions and answers, see Guesstimation 2.0: Solving Today’s Problems on the Back of a Napkin, by Lawrence Weinstein (Princeton University Press, 2012).

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