In the era of sophisticated long-range air-to-air missiles, cannons on aircraft may seem quaint—but they still serve a vital purpose.

The Norwegian industrial heat pump specialist said its HoegTemp system has a heat supply capacity of 0.2 MW to 5 MW and a coefficient of performance of up to 2.16.

PopSci editors swear by TheraGuns and other Therabody recovery gear. Grab it for half-off during Amazon's Cyber Monday sale.

Few things are more exciting in a movie than a stellar shootout, and we've put together a list of the best movie shootouts of ...