This animation explains the weird science behind worm charming

Worm charming is a special technique used to lure worms out of the soil. Worm charming is used to collect bait for fishing, and it's also performed as a competitive sport.
To charm worms, one must place a stick into the soil, and then rub another stick on top of the first to create vibrations that will summon the worms up and out of the soul. — Read the rest
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