High-quality, single-crystal, ultra-cold solid helium exhibits supersolid behavior, suggesting that this frictionless solid flow is not a consequence of defects and grain boundaries in poor-quality, ...

Experiments indicate that, as in a superfluid, mass can flow through solid helium-4 without viscous resistance. Recent calculations shed light on how this may happen thanks to defects in the crystal ...

Despatches from Holland related that a Professor Keesom had solidified that rare and undemonstrative gas, helium, by a process not too costly or laborious to be adopted industrially. By some ingenious ...

Robert B. Hallock, Distinguished Professor Emeritus of physics at UMass Amherst in working with superfluid and solid helium, was recently awarded the top international honor in low-temperature physics ...

AMHERST, Mass. — Robert B. Hallock, distinguished professor emeritus of physics at the University of Massachusetts Amherst and pioneer in working with superfluid and solid helium, was recently awarded ...

Two Canadian researchers discovered a new form of matter yesterday. They call it “supersolid helium,” and it’s stiffer than any solid matter ever seen on Earth. Above you can see an image of solid ...

What looks like supersolidity in helium could actually be the result of changes in helium’s elasticity, according to theory. A classic experiment for observing the superfluid transition in liquid ...

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Helium (symbol He, atomic weight 2) is the second lightest element known after Hydrogen. Discovered in 1868 by French astronomer Pierre Janssen while observing spectral lines during a solar eclipse, ...

Fritz London Memorial Prize recognizes pathbreaking work in low-temperature physics AMHERST, Mass. — Robert B. Hallock, distinguished professor emeritus of physics at the University of Massachusetts ...