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skruban
on April 10, 2021
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A Soroban Beats an Electric Calculator (1946)
Reminds me of Feynman's interaction with an Abacus Salesman in "Surely, You're Joking, Mr. Feynman!".
https://www.ee.ryerson.ca/~elf/abacus/feynman.html
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https://www.ee.ryerson.ca/~elf/abacus/feynman.html