A large, international team of researchers has used X-rays from a free-electron laser to peer inside individual droplets of liquid helium, exploring whether this liquid helium retains its superfluid ...

One of the strangest liquids in the universe, superfluid helium can climb out of its container, has virtually no viscosity and conducts heat 1,000 times better than copper. It is the ultimate coolant.

I AM glad to endorse certain points which Prof. Tisza has made in his letter, especially that the behaviour of helium II cannot be explained by assuming extreme values for macroscopic parameters, and ...

Measurements have been made in glass capillary tubes of 52 and 108 μ diameter, in the temperature range from 1· 15 to 2· 15°K. For sufficiently small temperature gradients the thermal resistance is ...

Owing to peculiar properties, helium has taken both the main and supporting roles in scientific discoveries over the years. Christine Herman explores just what makes it such a cool element. I was one ...

For the first time, physicists have recorded sound waves moving through a perfect fluid with the lowest possible viscosity, as permitted by the laws of quantum mechanics, an ascending glissando of the ...

As another hectic semester of classes and exams comes to an end here at IIT Kanpur, where I teach, everyone is breathing a sigh of relief. With winters settling in and a bit of a chill in the air, ...

In an engineering lab not far from Old Campus, a Yale scientist is using super-helium to improve the design of nuclear submarines and aircraft. Mechanical engineering and physics professor Katepalli ...

Studies of the vastness of the universe and the invisible smallness of the atom are remote from the things of everyday life. Scientists also go far from familiar things in the study of low ...