MindPerformanceHacks 2fTurnYourHandsIntoAnAbacus

Hack #39: Turn Your Hands into an Abacus

You might have heard stories of how rapid and accurate calculations with an abacus can be, but did you know that the abacus might have been based on an ancient technique using only the human hand, which survives today as the Korean art of Chisenbop?

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Hack Author

Ron Hale-Evans

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This is a page for a hack from the book MindPerformanceHacks by Ron Hale-Evans.