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Editor's choice

Physics World's February issue looks at the science of complex systems.

News: March 2005

New look for molecular transistors

Decoherence and benzene rings could transform quantum devices

Unconventional wisdom

Plutonium compound bridges superconducting extremes

Cosmic rays enter the "dark" age

Astrophysicists have found eight new sources of very high energy gamma rays in the Milky Way

First light from exoplanets

Astronomers learn more about "hot Jupiters"

New look for nanomotors

Harnessing surface tension for nanomechanical applications

Einstein on CD

Listening to his master's voice

Microscope zooms in on crystallisation

AFM offers control over the growth of single polymer crystals

Counting electrons one by one

Novel device could lead to new standard for electric current

Photonic crystal slows down light

Two-dimensional array of tiny cavities can reduce group velocities

Chromium condensate makes its mark

Physicists observe Bose-Einstein condensation in yet another element

Can stars become only so big?

New research puts an upper limit on the mass of stars

Laser pioneer scoops religion prize

Charles Townes wins Templeton prize for examining the boundaries between science and religion

New look for the kilogram

Physicists want the kilogram to be defined in terms of fundamental constants

Atom bomb designer dies

Hans Bethe, who helped develop the atomic bomb and worked out how stars shine, has died aged 98

Total reflection doubles up

French physicists follow in the footsteps of Newton and Wigner

Bubbles feel the heat

Plasma state seen in sonoluminescence experiment

Galaxies break new records

Two teams of astronomers go further than ever before

New look for classic experiment

Lasers create double slits in time not space