Ensso has designed an all-in-one fountain pen with scale ruler for architects and engineers, graded with imperial and metric scales.

The unsuccessful drive to teach the metric system in schools presents a cautionary tale about teacher buy-in for common-core advocates, writes Jeanne Zaino.

Oxford University in the UK has now decided to educate its students on the basis of the Imperial system of measurement. As you know there are two systems in use today. One is the Imperial and the ...