Record🤔

uri:

"at://did:plc:5dp4ijlqr3r7atbrklmfij3v/app.bsky.feed.post/3kusx4xekm32a"

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"bafyreibrvbb3pycxcakjdj3vix2co6rledqslnfwi3kkaeqdqwjeeyikxu"

value:

text:

"the Chinese abacus, once you're trained on it, is extremely fast for addition, subtraction, and multiplication, but slow on division and roots.

In the 1970s, you see transitional portable electronic calculators with an abacus for shopkeepers so they can keep abacusing."

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embed:

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images:

• alt:

  "A photo of 4 transitional 1970s electronic calculators from different brands with a Japanese style sarupan abacus built into them. The idea is that those with abacus training can keep on clicking and slapping, and turn to the calculator for the hard parts that are better with the electronics."

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  aspectRatio:

  width:

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  height:

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langs:

• "en"

createdAt:

"2024-06-13T15:37:16.100Z"