and Archimedes' principle of buoyancy. Legend has it that he discovered this principle while in the bath, where he noticed that the more of his body he submerged in the water, the greater the ...

This story appears in the March 2017 issue of National Geographic magazine. Technically it’s ancient technology. But now the two-millennia-old principle of the Greek mathematician Archimedes has ...

Pi Day is Friday, March 14. The relatively new holiday is a celebration of the mathematical calculation pi, or the infinite number representing the constant ratio of a circle’s circumference to its ...