Many old homes have perplexing features that baffle their modern-day owners. Here we've solved some of those mysteries.

Russia’s Kilo-class submarines have been in service since the 1980s, proving cost-effective and versatile. Despite their age, ...

Pyrolytic boron nitride (PBN) demand is projected to rise steadily over the assessment period due to growing demand for smart ...

Look around you and name three things made of glass. Anybody see what I see? A window, a drinking glass, and a phone screen.