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Dark energy emerges when energy conservation is violated

Alternative explanation for accelerating expansion of the universe

Flash Physics: Tornado mystery solved at long last, nanoparticles self-heal, firm bags £35m nuclear contract

Today's selection of need-to-know updates from the world of physics

Squeezed light plays a quantum drum

Microscopic drum cooled below quantum limit

Flash Physics: Huge wave seen on Venus, why some galaxies die early, free-electron laser opens in China

Today's selection of need-to-know updates from the world of physics

Stretchable transistor could be a second skin

Devices could monitor blood glucose levels

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Polymer welding with thulium lasers

Welding clear-to-clear polymers with thulium fibre lasers. A white paper from IPG Photonics

Quantum Science and Technology publishes first issue

journals

We are delighted to announce that the first issue of our exciting new IOP Publishing journal, Quantum Science and Technology (QST), has now been published online. All articles published in this first issue are currently free to read until the end of 2017. Start reading these fascinating first papers today.

Related websites

Are you a teacher?

Interested in the teaching and learning of physics in school and colleges?

Visit Schools and colleges web resource at the Institute of Physics website.

At school or college?

Have a question about physics or simply interested in the subject?

Check out physics.org for facts, experiments, games and revision advice.

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Photonic, plasmonic and multiphysics simulations using CST STUDIO SUITE

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Watch the video about new electromagnet-based VSMs

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Blog

Run the solar system

Dust your trainers off and join the space race

Multimedia

podcast

Book of the Year 2016

Podcast Physics World book experts Tushna Commissariat and Margaret Harris discuss a few of the best popular-physics books of 2016 and announce the winner of the magazine’s annual book award

Why do physicists study matter under very high pressures?

Video Extreme conditions can lead to some interesting physics

What is spintronics?

Video A back-to-basics introduction to this emerging research field

Features

feature

Cuckoo forgeries – a bird's-eye view

Liz Kalaugher describes how researchers are visualizing how birds see to work out why they don’t reject cuckoo eggs

feature

Decoding the quantum horizon

Patrick Hayden and Robert Myers describe how “qubits” may hold the key to quantum gravity

Opinion

opinion

This time it's different

Robert P Crease claims the traditional model of scientific authority is defunct

Reviews

review

Bright ideas and their architects

Stephen Wolfram's collection of essays details big ideas and the people who thought of them, although some of the tales are rather partial, says Tony Mann

review

Tracing the path towards totality

Tyler Nordgren’s book on the history, science and beauty of a total solar eclipse flows between personal experiences and scientific facts, writes Shadia Habbal

Innovation & industry

Focus issue

Physics World Focus on Vacuum Technology

Free to read: Challenges, applications and solutions

For the latest features and products for those interested in innovation and industry, see our special sections on:

Fusion

Optics