Recently I overheard two high-school teachers say that many math teachers no longer teach students about significant figures. So, the young people don't realize 3.3 times 3.3 equals 11, not 10.89. One ...

It was the only technological tool widely and continuously used for over three centuries. For math and science geeks it was a badge of honor, nestled neatly into a plastic pocket protector along with ...

The slide rule, sometimes called a slipstick, was a type of mechanical analog computer. It was and still is, used primarily for multiplication and division, and also for functions such as roots, ...