The Grey Labyrinth is a collection of puzzles, riddles, mind games, paradoxes and other intellectually challenging diversions. Related topics: puzzle games, logic puzzles, lateral thinking puzzles, philosophy, mind benders, brain teasers, word problems, conundrums, 3d puzzles, spatial reasoning, intelligence tests, mathematical diversions, paradoxes, physics problems, reasoning, math, science.


Shadow of Flight

Over Columbus Day weekend yours truly received his Hang I rating, the first rating for Hang Glider pilots. I did so flying a Falcon 195.

When the sun is directly over head and the Falcon is on flat level ground, and with its wings level with the Earth, it casts a shadow measuring 195 square feet.

During one flight, when I was about thirty feet off the ground I glanced down at my shadow and thought, "Gulp."

After landing, I wondered, what was the area of the Falcon's shadow when I was thirty feet off the ground? Assume the sun was directly overhead, a level ground, and level plane of flight.

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