Phonons are the quantum units of mechanical vibration. They describe how motion propagates through a solid at the smallest ...

For decades, it has been widely believed that electrons move most efficiently in materials that are clean and highly ordered.

Having a portable pump in your car will prepare you for the next time your tire pressure is low, and these three models we ...

Over the past decade fluid-power transmissions that are able to deliver both fine control and high road speed have been ...