More than 200 students at Shanghai Lixin University of Commerce have applied to take a course in how to use a Chinese abacus. Such lessons were once mandatory at the university, but they were phased ...
A Japanese abacus (soroban) held over an older style Chinese abacus (suan pan). Photograph by Forrest M. Mims IIIFORREST M MIMS 111 Photo Caption: A Japanese abacus (soroban) held over an older style ...