Sábado de Calculadoras: “A História do Ábaco”

https://retropolis.com.br/2026/05/30/sabado-de-calculadoras-a-historia-do-abaco/

#MundoRetro #baco #Antiguidades #Anzan #CalculadoraMecnica #ClculoMental #casio #Facit #HistriaDaComputao #HomemVsMquina #KiyoshiMatsuzaki #Retrocomputao #Soroban #Suanpan #ThomasNathanWood

This very important set of digits on an #abacus seems to beg for a solution

#soroban #i8647

The #jupan ( #korean #abacus ) appears to be a hybrid of the #chinese and #japanese abacuses

#soroban #suanpan

https://www.youtube.com/watch?v=6x3TYCH2mAI

My new #pocketCalculator

(I have to use a pen as a stylus to push the beads most of the time because it's all tiny)

#soroban #abacus #calculator

My new #pocketCalculator

(I have to use a pen as a stylus to push the beads most of the time because it's all tiny)

#soroban #abacus #calculator

#FlashAnzan #MentalSoroban #MindAbacus

#abacus #soroban #anzan

https://www.youtube.com/watch?v=Px_hvzYS3_Y

https://www.youtube.com/watch?v=WvbPAhQLBy4

I want this giant #soroban #abacus on a carrying strap! Such delightful #chonk!

Deal with the "sound quality issues" because a 7yo doing math this fast is amazing

#soroban #math #abacus

https://www.youtube.com/watch?v=GQtqlB-jXO0

I am:

* Learning #soroban #abacus and trying to improve my mental #math in other ways as well.

* #SkimReading "C By Example" to refresh my oxidized neural pathways on the subject.

* Keeping "Drawing On The Right Side Of The Brain" in the stack to read and work through.

* Attempting semi-immersive language learning by watching movies in #French

* Etc etc etc