Neatorama Posts Tagged "abacus"
Amazing Skill: Manipulating a Mental Abacus

[https://www.youtube.com/watch?v=LzkgIPRzl-E](Vide...  ...ing in their minds and with gestures an imaginary abacus . This technique helps them keep the numbers in th...

https://www.neatorama.com/2015/07/30/Amazing-Skill-Manipulating-a-Mental-Abacus/
Electronic Abacus

The sorocal is a retro-cool Japanese marvel of...  ...ancient technology: a calculator combined with an abacus . Sharp made four models in the seventies and eigh...

https://www.neatorama.com/2012/03/28/electronic-abacus/
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