The Inca invented a powerful counting system that could be used to make complex calculations, according to an Italian engineer professor who says he has cracked the mathematics of this ancient ...

When Alfred Taubman was chief executive of the restaurant chain A&W, he came up with a clever way of challenging the competition: He offered a third-pound burger for the cost of a McDonald’s ...

Whether you’re trudging on a treadmill, pedaling on an exercise bike or taking on Roger Federer in a Wii game of Grand Slam Tennis, the machine will probably give you a reading of how many calories ...