S01E11
Abacus
June 23, 200828m
Overview
The "soroban" (Abacus) - a calculation tool no longer used in the Western world but still a common sight in Japan, where education and businesses use it with great succes.
The "soroban" (Abacus) - a calculation tool no longer used in the Western world but still a common sight in Japan, where education and businesses use it with great succes.