Since I’m off on vacation, I’ve asked Ethan Hutt—Assistant Professor of Education at the University of Maryland—to step in with a guest post. You can never have too many book recommendations for ...

In prehistoric times, not much needed to be measured. You ate what you found and lived where you could. The advent of agriculture and civilization, however, necessitated a way for people to measure ...

“Beyond Measure,” by James Vincent, tells the story of human civilization through its systems of measurement, showing how they have promoted knowledge, social control and ongoing conflict. By Jennifer ...

WE TAKE the certainty of measurements for granted, but their story is as complicated and changeable as any other part of human culture. Journalist James Vincent makes this clear in his new book, which ...

The new Fluke IRR1-SOL Solar Irradiance Meter makes the critical measurements needed for installing, testing, and maintaining photovoltaic systems The simple user interface, instantaneous solar ...

Imagine a prisoner in a cell, tabulating time served. Those groups of four lines crossed with a diagonal fifth have a long history. It stretches back to the Wolf Bone, found in what is now the Czech ...