Researchers find that disorder is key to nanotube mystery

So far, no one has managed to explain why, at the molecular level, a stable liquid would want to confine itself to such a small area. Now, using a novel method to calculate the dynamics of water molecules, Caltech researchers believe they have solved the mystery. It turns out that entropy, a measurement of disorder, has been the missing key.

Exotic quantum crystal discovered – a novel state of crystal matter

Nature knows two opposite types of solids: one that emerges upon compression from a liquid and a second that appears if the pressure on a liquid is reduced. While the former is typical for substances in our everyday life the latter occurs for example in a dense quantum liquid of electrons (such as in metals) or ions (in exotic white dwarf or neutron stars). Now it has been shown that there exists yet a third form of matter that inherits both of these properties.

Presentations from US-EU nanoEHS workshop now available online

On March 10-11, 2011 The US and EU jointly held a workshop to engage in an active discussion about environmental, health, and safety questions for nano-enabled products; encourage joint programs of work that would leverage resources; establish communities of practice, including identificaiton of key points of contact /interest groups/themes between key US and EU researchers and key US and EU funding sources. The presentations from this workshop are now available online.

Where electrons get stuck in traffic

The thinnest wire in the world, made from pure gold, is being examined by physicists from the universities of Wuerzburg and Kassel. Its exceptional electrical conductivity is causing quite a stir: the electrons do not move freely through the wire, but like cars in stop-and-go traffic.