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Quantum cryptography set for lift-off

Satellite transmits qubits to the Earth's surface

Could lasers guide and control the path of lightning?

New method to steer electric discharges around an obstacle uses laser beams

Frequency combs smooth out optical-fibre signals

Research could mean higher bandwidth for optical fibres, and so more data

Thin semiconductors go through the Mott transition

Research could help build photonic devices from novel 2D transition metals

Kirigami patterns make composite materials more stretchy, while staying strong

Method could be used to make flexible electronics and optoelectronic devices

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White papers

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Kurt J Lesker company enables propulsion research

The Boğaziçi University Space Technologies Laboratory presents its research findings into sourcing reliable technologies for testing space simulation. A white paper from Kurt J Lesker

The taccor comb – high-power frequency comb with 1 GHz mode spacing

Optical frequency combs based on femtosecond lasers are invaluable tools in optical metrology and spectroscopy. A white paper from Laser Quantum

IOP Publishing Impact Factor growth

journals

The 2014 Impact Factors, published by Thomson Reuters, once again show significant growth for journals published by IOP Publishing.

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Blog

Agreeing to disagree at the next Convergence conference

The Perimeter Institute should host a forum on “challenge”

Multimedia

podcast

Vidya Deepa: the lamp of knowledge

Video How portable LED lights are helping students in a rural Indian community

podcast

Going beyond 'shut up and calculate'

Podcast Science journalist Amanda Gefter talks about her quest to understand what modern physics has to say about the ultimate nature of reality

Features

feature

The spin of a proton

Where does the spin of a proton come from? An answer to this deceptively simple question may finally be within reach, as Edwin Cartlidge reports

Opinion

opinion

Black elephants

Robert P Crease tackles scientific rituals that we recognize but don't talk about

Reviews

review

A quest for ultimate reality

An enlightening and deeply personal tour of some of the edgiest, most puzzling elements of modern cosmology, reviewed by Melanie Windridge

review

The cradle of modern science

Steven Weinberg's latest book offers rich insights on the history of science, but reviewer Paul Montgomery finds its treatment of philosophy frustrating

Innovation & industry

industry

Physics World Focus on Optics and Photonics

Free to read: Our pick of some of the best recent advances exploiting the power of light

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