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Tag archives: light

Primal colours across the spectrum, impossible space engines

 

By Tushna Commissariat 

Physicists and artists have long been intrigued and drawn in by the various mysteries that light and its many colours offer. In the latest installation to be unveiled at the Natural History Museum in London, artist Liz West has unveiled her stunning new work dubbed Our Spectral Vision. The exhibit aims to delve into the long and complex history of the development of colour and vision “through the eyes of nature”. Our regular readers will recall the many physics papers that look into the same, from the structural colour of butterflies to the nanostructures in avian eggshells to the mantis shrimp’s visual superpowers. West’s exhibit deals with many of these topics and more including some fantastic “350 rarely seen specimens, from beautiful birds to fossils of the first organisms with eyes”. If you are based in the UK, do visit the exhibit and otherwise, take a look at the video above to see through West’s eyes.

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Using pictures to describe light

"Bullseye sky" by Michael Berry.

“Bullseye sky” by Michael Berry.

By Kate Gardner

“Pictures convey abstract concepts to each other and to ourselves,” explained Michael Berry last night in his talk “Optica Fantastica: Nature’s optics and our understanding of light” here at IOP Publishing in Bristol as part of the city’s Festival of Ideas. Berry, who is the Melville Wills emeritus professor of physics at the University of Bristol, began by declaring that he was going to take the “opposite approach to Einstein”. Whereas Einstein said, “I want to know God’s thoughts, the rest is just detail”, Berry is interested in those details.

Sponsored by the Institute of Physics, which publishes Physics World, the talk was held to celebrate the International Year of Light 2015 and in it Berry ran the audience through the four levels of understanding light: rays, waves, polarization and quantum. He showed beautiful pictures from his own research but also included some artworks related to the phenomena he was explaining and even quoted passages from novels.

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International Year of Light 2015: our top 10 articles on light now with added videos

Celebrating IYL 2015 with a special free-to-read digital edition of Physics World – now updated to include light-themed films and a look ahead to the legacy the year will leave.

Celebrate IYL 2015 with a special free-to-read digital edition of Physics World – now updated to include light-themed films and a look ahead to the legacy the year will leave.

By Matin Durrani

We’re now in the final quarter of the International Year of Light (IYL 2015), which officially launched in January at the headquarters of the UN Educational, Scientific and Cultural Organization (UNESCO) in Paris. You may remember that on the very same day Physics World unveiled its own contribution to the IYL in the form of a free-to-read digital edition containing 10 of our very best feature articles on the science and applications of light.

Today we’re pleased to publish a new version of that digital edition, which contains the same 10 top articles but now includes a series of great videos and a podcast on the theme of light that we’ve been busy creating over the last few months. The refreshed digital edition also has interviews with some of the people involved in the IYL, in which they highlight some of the successes of the year so far and examine the legacy the IYL will leave behind. Click here to find out more.

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Maxwell’s Torch arrives in Birmingham to mark International Year of Light

Photo of Julia King and others with Maxwell's Torch at the Library of Birmingham on 25 September 2015

Bright affair – Julia King (right) and other dignitaries grasp Maxwell’s Torch at the opening of Lightfest at the Library of Birmingham in the UK. (Courtesy: James Dacey)

By Matin Durrani 

Light was the theme in the UK’s second city last Friday when I and my colleague James Dacey attended Lightfest at the Library of Birmingham. Organized by Aston University and funded by the European Commission, the festival was a celebration of light in science, art, technology and culture during the International Year of Light (IYL2015).

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Physics World 2015 Focus on Optics & Photonics is out now

PWoptics2015-cover-500By Matin Durrani

With the 2015 International Year of Light now in full swing, it’s time to tuck into the latest focus issue of Physics World, which explores some of the latest research into optics and photonics.

The focus issue, which can be read here free of charge, kicks off by looking at the giant laser interferometers underpinning the latest searches for gravitational waves. We also report on recent efforts to use optical instead of radio waves for satellite communication and have an interview with Ian Walmsley from the University of Oxford about the vital role that optics and photonics play in the UK’s new £270m Quantum Technologies Programme.

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Getting into the mind of Maxwell

Malcolm Longair on the beauty of Maxwell's equations
Published 150 years ago, Maxwell's paper on electricity and magnetism remains hugely profound
This text will be replaced

By Matin Durrani

In case you’ve forgotten – and shame on you if you have – 2015 has been designated the International Year of Light and Light-based Technologies (IYL 2015).  There’s been loads going on all over the globe, which you can follow on the excellent IYL 2015 blog, and we at Physics World have been in on the act too don’t forget. Our March 2015 issue was devoted to light and we also produced a digital-only collection of our 10 best features on light, which you can read free here.

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IYL 2015 gets Swiss design makeover

Posters inspired by IYL 2015

IYL 2015 is the theme of this student poster project.

By James Dacey

One of the big aims of the International Year of Light (IYL 2015) is to take scientific ideas out of the lab to show the world just how inspiring and useful they can be. In the process, it can forge relationships between different communities, including scientists, engineers, artists, journalists, architects, politicians, aid workers…the list goes on.

Here in Bristol, where Physics World is produced, we’ve seen a fantastic local example of this by way of an art project at the University of the West of England (UWE). Second-year graphic-design students were set the brief of creating posters themed on IYL 2015. Last night we hosted an evening at IOP Publishing headquarters to showcase the students’ work and to let them find out more about science publishing.

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Celebrating a year of light

Photograph of Shuji Nakamura

Shuji Nakamura talks to delegates about blue light-emitting diodes.

By Michael Banks in San Antonio, Texas

With 2015 being the International Year of Light it is perhaps the perfect opportunity to have a session at this year’s American Physical Society meeting in San Antonio dedicated to the forefront of optics research.

Yesterday afternoon saw a number of light pioneers update delegates about their research. The session boasted three of last year’s Nobel-prize winners: Stefan Hell of the Max Planck Institute for Biophysical Chemistry in Gottingen, Germany; William Moerner of Stanford University; and Shuji Nakamura of the University of California, Santa Barbara.

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Your secret superpower

By Matin Durrani

The March 2015 issue of Physics World magazine, a special issue about light in our lives that is now out in print, online and via our apps, contains a fascinating feature about an astonishing – and largely unknown – superpower that you perhaps don’t realize you have. It might sound bizarre, but using your naked eyes – and with no additional gadgets whatsoever – you can detect whether or not light is “polarized”. And in the video above, Louise Mayor, features editor of Physics World, tells you how.

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Royal approval for the International Year of Light

Duke of York tries on NPL glasses at UK launch of the International Year of Light 28 January 2015

Seeing the future: HRH The Duke of York at the UK launch of the International Year of Light at St James’s Palace. (Courtesy: Paul Burns)

By Matin Durrani

And so last night to St James’s Palace in London and the official UK launch of the International Year of Light and Light-based Technologies (IYL 2015). The building, which belongs to the British monarchy and has a long history as a royal residence, might sound a rather grand venue for the event – but when HRH The Duke of York is the patron for IYL 2015 in the UK, then who wouldn’t take up his invitation to host the opening reception for the year?

The evening began with a short speech from the Duke of York, who said that he had always had an interest in physics despite not having taken it as a single subject at school – and that he was “right behind” all the activities taking place in the IYL 2015. “The International Year of Light is about how we have used light over the centuries,” he told the 200 or so guests. “It is how we are applying light, photonics and various other aspects in order to make the world a better place, not only for ourselves, but for future generations.”

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