The topic and arguments concerning mechanical vs. kinematic alignment of knee replacements can be confusing the first few times you read about it. This month I asked Stephen M. Howell, MD, to respond ...

Light can exert incredible forces. According to the rules of quantum mechanics, light is an electromagnetic wave, as well as a stream of photons. Since it has momentum, a transparent particle through ...

Underwater turbines that harvest tidal currents have already become an established technology in the world of clean energy. So in order to push the frontier further, a group of engineers at Oxford ...