Page 87 - Are You Future Ready?
P. 87
Chapter One - To Know the Present
Through the Past
Sideline
/ China's unique wearable /
A ring abacus is a unique wearable device in China.
It was invented in the Qing Dynasty. There is a small
Chinese abacus on the front of the ring. As the
beads are too small, the abacus cannot be operated
directly using fingers. When there was a transaction,
the merchant would take a needle to do the simple
calculations using the ring abacus, and women
could also use a hairpin to operate the abacus.
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