Phenomena

How Not to Get Wet in the Rain

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Ever wonder how to minimize how wet you get if you’re caught in the rain without an umbrella? This lecture discusses just that problem and how to calculate an answer. I actually solved a version of this problem when studying for my PhD quals, only I first had to determine the terminal velocity of a rain drop (~10 m/s assuming a 4mm spherical drop) and work from there. We also had to compare moving upright to running at an angle. It makes for an interesting little diversion. (via physicsphysics)

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