Impressive kids solve math calculations shaking their fingers in the air

These Indian kids don't need a calculator to solve mathematical operations in just seconds. They do it all in their heads using a mental abacus—an old Asian technique that allows them to visualize an imaginary abacus and operate it to perform the calculations. » 1/08/15 11:44pm 1/08/15 11:44pm

Vintage Desk Coughs Up Vintage General Electric Abacus

Those young whipper snappers back in 1979 couldn't hold a candle to this archaic computational device, the abacus. Gizmodo 600 BC, anyone? » 7/19/09 1:00pm 7/19/09 1:00pm

Abacus SPOT Watch Hands-On

Let's get one thing straight. We were about to write off SPOT. The technology, while very cool, has thus far been limited to a few geek watches and weather stations that the average Joe—the guy who might want to wear a watch rather than check the time on his cellphone—would consider picking one up. » 5/24/06 1:02pm 5/24/06 1:02pm