Abacus, made by Qian Hasun
Taiwan
Designed by Qian Haosun in 1984
Chinese mathematicians developed a counting
system based on tens in 300 BC. The abacus, an early
calculator, may have been invented to speed up their
calculations and can assist with additions, subtractions,
multiplications and divisions.
Qian Haosun, a Taiwanese artist, designed this
wooden framed abacus with metal rods and porcelain beads decorated
with dragons in 1984.
Abacuses are still in use in China, Taiwan and
Japan.