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kryptonomikon said...

  • kryptonomikon at 10:36 AM JST - 20th July

    Using an abacus requires your brain to do more work than just punching in numbers into an electronic calculator. You learn to visualize the values going around instead of seeing just the end result. I'm not going to quote any scientific studies, but I personally know people who grew up…

    Posted in Abacus enjoying renewed popularity in Japan at 10:36 AM JST - 20th July

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