Scary Dive for Pearls

As a preteen, Robert Brown took a scary dive for pearls in his grandfather's lake.

“You would be shocked to learn how fast you can make it to the bottom of a lake with a cinder block tied to your leg. I know this rate, by my own empirical investigation, to be thirty feet per second, give or take. If you’re in the mind to disconfirm this experimentally determined value, I will tell you how to repeat this experiment for yourself. First, convince yourself there are freshwater pearls in the mussels that live in your grandfather’s lake…”

Read the rest of this scary dive for pearls story at Lumina’s website here.

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