The quest to develop ever-faster and more powerful computers has led to one of the most rudimentary methods of counting being given a 21st century make-over. An international team of researchers, ...

FORT LEE — For 10 seconds, a series of 50 random three-digit numbers flashed on the screen. After another second, abacus master Jeonghee Lee announced she'd finished the mental addition, correctly ...

The abacus, that ancient, no-batteries-required, bead-based calculator, is making a comeback in after-school programs across Canada. The schools, which are modelled after programs common across India ...

China's Zhusuan or the knowledge and practice of arithmetic calculation using an abacus, has been nominated by UNSECO for competition to be listed as World Intangible Cultural Heritage. The final ...