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Print edition: November 2003

Features

Welcome to quantum gravity

Quantum theory and general relativity will only be unified when theory meets experiment

Superstrings

String theory might be a theory of everything - or a theory of nothing

Loop quantum gravity

Space does not exist as we know it - only networks of loops

Quantum-gravity phenomenology

Putting new theories of space and time to the test

Physics in Action

The string-theory landscape

String theorists have found a way to describe an accelerating universe

Brainwave for radiotherapy

Combining imaging techniques and X-rays

Quantum mechanics gets real

A 75-year-old problem has been solved

Seeing with bosons

Medical imaging turns to quantum theory

Post-deadline

A dodecahedral universe

When the cosmos changed gear

A conductor that can stand the heat

News & Analysis

Physics enjoys Nobel bonanza

MRI pioneers share medicine prize

Giant French laser starts to take shape

Decision on ITER site still up in the air

Magnet firm attracts orders by design

Philips DVDs double up

Konstanz clears Schön

Extracting electricity from water

Europe needs its own research council

GSI gets credit for new elements

South Africa sets its sights on the stars

Mixed fortunes in the US

Neutron pioneer Brockhouse dies

Theorist charts a deterministic future

Betty Johnson: 1936-2003

GMR goes for gold

More honours for neutrino physicists

Editorial

Do's and don'ts for authors

All authors must be responsible

Forum

William Gilbert: forgotten genius

Why is the father of magnetism not better known?

Critical Point

The advantage of togetherness

Reviews

Railways and the roots of relativity

Was Einstein partly inspired by the railways?

Soul-searching at Caltech

Feeling the pressure in a physics powerhouse

Maxwell portrayed as a hero of history

The life and times of James Clerk Maxwell

Watching scientists at work

Diaries reveal what it is like to be a scientist

Lateral Thoughts

A forgotten instrument of physics