Condensed matter physics studies the macroscopic and microscopic physical properties of objects, objects ranging from the dense to the capacious states. What principles are responsible for the solid nature of solids, the liquid nature of liquids, or the dense Bose-Einstein condensate? Condensed matter investigates these questions. You can find some of the latest research here.
Superfluid Helium. A fascinating material which can flow up walls and have zero friction.
