Math students may not blink at calculating probabilities, measuring the area beneath curves or evaluating matrices, yet they often find themselves at sea when first confronted with writing proofs.

In this video I walk through building the foundation formwork for a power hammer — the critical step before pouring concrete ...

In 2004, archaeologists discovered a new species of ancient human, Homo floresiensis, on the Indonesian island of Flores. Nicknamed “the hobbit,” this three-foot-tall hominin lived between about ...