Vortices multiply in superfluid helium-II
Now Demosthenes Kivotides, Carlo Barenghi and David Samuels at the University of Newcastle in the UK have discovered another surprising feature of liquid helium. They have predicted that the coupled m...
Liquid hydrogen turns superfluid
Superfluids are among the most peculiar and counterintuitive of all materials. They have no viscosity, which allows an object travelling in a pure superfluid to move without friction. Similarly, they ...
Read article: Liquid hydrogen turns superfluid
Revealing the invisible
Physicists, more than most people, are accustomed to dealing with gases. Yet even physicists often treat gases as something to be taken for granted, a sort of Platonic ideal with interesting or useful...
