Complex fluids go through a strange phase
Some liquids are very useful because their molecules act as tiny dipoles that can be aligned by electric or magnetic fields. Vehicle clutches, ink-jet printers and lubricants are among the application...
Magnetism’s standard model gets a facelift
The standard model – developed by Pierre Weiss in 1907 – treats paramagnets as systems of non-interacting magnetic dipoles. The theory successfully describes the behaviour of paramagnets &...
Read article: Space to play a starring role in Europe’s future
Space to play a starring role in Europe’s future
ESA’s director general Antonio Rodotà appointed the committee in March 2000. Carl Bildt, former Swedish Prime Minister and UN Envoy to the Balkans, Jean Peyrelevade, President of Crédi...
Read article: End of the line for LEP
End of the line for LEP
Hints that the elusive Higgs boson – the holy grail of particle physics – had finally been sighted prompted CERN to extend LEP operation by five weeks. But in a race against time particle ...
Read article: Vortices get in a spin
Vortices get in a spin
Ordinary experimental fluids are subject to effects like viscosity and can be difficult to manipulate. Durkin and Fajans therefore used a cylindrical column of magnetically confined electrons to simul...
Read article: A celebration of science
A celebration of science
Physics is well catered for within the week’s activities. A mock spaceship is part of an exhibition exploring the sun’s activity and how it affects us, and a film – Inspired by Natur...
Supernova link to gamma-ray bursts
A supernova explosion marks the death of a certain type of star. During the evolution of these stars, nuclear reactions take place at their cores, creating light elements like hydrogen and helium. Hea...
The great atom race
Atoms move through the crystal lattice of a solid by a process called diffusion. The atoms migrate by swapping places with ‘point defects’ such as vacancies – empty spaces in the lat...
Read article: Liquid hydrogen turns superfluid
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: No space like home
No space like home
Space station commander Bill Shepherd (US), Soyuz commander Yuri Gidzenko and flight engineer Sergei Krikalev have trained for four years in both Russia and the US in preparation for the expedition, w...
