How to keep busy on your next flight – an idea for geeks and engineers

Tired of working on the plane? Nothing of interest on the in-flight entertainment system?  Feeling out of practice with you basic math and physics you studied years ago?  Here’s a fun mental exercise you can do while on board to kill a little time…

When you look out of the window of a plane, everything looks so small. But they're all big enough to do some physics.
 

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