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Print edition: September 2002


The Casimir effect: a force from nothing

The force could affect everything from micromachines to unified theories of nature

Atomic entanglement on a grand scale

One of the most bizarre and profound features of quantum mechanics could become its most useful

Physics with petawatt lasers

The latest high-power lasers are providing new approaches to fusion, nuclear physics and astrophysics

Physics in Action

Could the end be in sight for ultrahigh-energy cosmic rays?

Recent studies suggest that cosmic rays come from cosmologically distant sources

Polymer devices live longer

Ionic liquids can improve the performance of plastic devices that change colour or shape when a potential difference is applied to them

Electron bunches are cut down to size

Ultrashort pulses of light can control the motion of electrons ejected from molecules and produce electron beams just nanometres long

Butterfly state


Exciting times for water

MgB2: mind the gaps

Electron microscopes go to new lengths

News & Analysis

The life and times of a popular scientist

Physicist Paul Davies has branched out to write about cosmology, religion and the origins of life

US scientists back ITER project

Uptake for A-level physics on the rise

Neutrino astronomy plunges the depths

US outlines space strategy

Standard Model challenged again

New support for CP violation

Scientific analysis backs test ban

Antigravity propulsion still up in the air

Lab looks for US talent

Gell-Mann and Joyce re-united in Dublin

Interdisciplinary institute goes global

Blind researcher who has a grand vision for science

Cosmologists collect Dirac medal

EPS announces prize winners

Llewllyn smith resigns from UCL


The double-slit experiment

Who performed the most beautiful experiment in physics?


Don't give yourself a bad name

Critical Point

The most beautiful experiment

Physics World readers vote for the "most beautiful experiment in physics"


Use and abuse of our energy supply


Nightclubs, beetles, spiders and maps

A New Kind of Sceince, Stephen Wolfram

Mathematical Vistas: From a Room With Many Windows, Peter Hilton, Derek Holton and Jean Pedersen

Opening the book of revelations

Lateral Thoughts

The most amazing 2 1/2 hours of my life