Last year our group at the California Institute of Technology teamed up with Loren Pfeiffer and Ken West of Bell Labs to study how electrons tunnel between two parallel 2-D electron gases. These electrons reside in a semiconductor heterostructure consisting of two thin layers of gallium arsenide separated by a barrier layer of aluminium gallium […]
The real show-stopper for science is a shortage of school teachers in general, and a chronic shortage of science teachers in particular, that threatens the economic prosperity of the country in a knowledge-based world. The new government has it in its power to increase salaries for teachers and, at the same time, reduce the administrative […]
Read article: Microwaves map cosmic origins
Recent data from the cosmic microwave background add further weight to the inflationary big-bang model. But more precise measurements from NASA's MAP satellite could challenge this theory
Read article: Quantum carpets, carpets of light
Michael Berry, Irene Marzoli and Wolfgang Schleich on the interference of waves that weave rich tapestries in space and space–time
A new theory to predict the properties of nuclei is boosted by real data
Magnesium diboride gears up for the real world following a rash of technical breakthroughs
Visible radiation from metal ions is used to create the word's most accurate clock
Devices that use the spin on electrons move a step closer
Biophysicists find that proteins are much more dynamic than previously thought
Nitrogen in Jupiter's atmosphere provide clues to the make-up of the pre-planetary nebula
