Parents in Japan often try to give their offspring a leg up by ensuring they learn early on how to use the abacus.

The abacus is a computing device on which arithmetic calculations are performed by sliding counters (beads, pebbles, or flat discs) along rods, wires or lines. The instrument may have originated in ...

An abacus is an ancient tool used for counting, consisting of a framed set with rods on which balls or beads are moved. The abacus has been in existence in China since the second century BCE, although ...

Handmade jewelry from copper wire and abacus crystal by Lan Anh Handmade Can do the same with ring, earring and bracelet to form sets. You can use any stone you have. You can use multiple colors wire ...

The abacus is a computing device on which arithmetic calculations are performed by sliding counters (beads, pebbles, or flat discs) along rods, wires or lines. The instrument may have originated in ...