News tagged with friction

A crack in the case for supersolids

New experiments are casting doubt on previously reported observations of supersolid helium. In a paper appearing in the current issue of Physical Review Letters, John Reppy (Cornell University) presents research suggesting that p ...

Jun 21, 2010 4.3 / 5 (4) 0

Frictionless supersolid a step closer

Superfluid mixtures of atoms can boil and freeze at ultra-low temperatures. This freezing can result in the formation of supersolids of atoms that can flow alongside each other without friction, but are still set in a fixed ...

Feb 14, 2010 4 / 5 (2) 6

In search of speed

In ski sports, it's often only a second that separates the winners from the losers. Using equipment made of the right materials can therefore make all the difference. Researchers are simulating the gliding ...

Jan 08, 2010 not rated yet 0