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Tag archives: history of physics

The February 2016 issue of Physics World is now out

 

By Matin Durrani

Welcome to the February 2016 issue of Physics World magazine.

As I explain in the video above, this month we have a package of articles looking at some of the issues surrounding peer review, including a news-analysis piece by Physics World news editor Michael Banks, who talks to a range of figures in physics and publishing with views on this subject.

Our cover feature this month is on the new interdisciplinary science of “network physiology”. Elsewhere in the issue, John Campbell from the University of Canterbury in New Zealand looks at Rutherford’s secret work in the First World War using sonar to spot submarines, while science writer Matthew Francis looks at efforts to rewrite the rules of gravity.

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Physicists’ pets, seven stars for Bowie, ping-pong in space and more

Brahe and his pet elk. (

Prancer and the astronomer: Brahe and his pet elk. (Courtesy: Perimeter Institute)

 

By Tushna Commissariat

Sparks of inspiration come from many sources, but for some of the 20th century’s most well known scientists, their four-legged pets played a key role. From Tesla’s cat “Macak” – his interest in electricity was lit as a child when he noticed sparks generated while he stroked Macak –  to Schrödinger’s (real live) dog “Burshie”, these intellectual giants sought the company of pets just as we do and over at the Perimeter Institute’s website, you can learn all about “Great physicists and the pets who inspired them”. My favourite “pet” is of course Tycho Brahe’s infamous elk (you can read about it in the image above). With all of these pets about, its a miracle that a paper wasn’t eaten by a naughty dog or cat!

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Immersive art, physics pumpkins, personalizing Thor’s hammer and more

 

By Matin Durrani

If you’ve ever been to the Perimeter Institute for Theoretical Physics in Canada, you’ll know that blackboards are everywhere. You can find them in handy little alcoves, in the cafe and even in the institute’s lifts – the idea being that brain-box theorists who have a great idea in their heads can crack off the underlying maths before their thought fizzles into the aether. (Not that there is an aether, of course, but you know what I mean.) Anyway, the institute’s new California-based artist-in-residence Alexa Meade, has taken the idea to a new level, creating a huge 3D living chalkboard to create the “perception-bending art for which she is internationally renowned”.  As you can see from the video above, it brings a whole new dimension to the idea of getting “immersed” into science. You can see more images of Meade’s living installation at Perimeter on Flickr.

This week, China’s president, Xi Jinping, is on a state visit to the UK, and today he toured the new National Graphene Institute (NGI) at the University of Manchester. We reported on the planned tour yesterday, with our story including a special behind-the-scenes video that Physics World recorded on our own recent visit to the NGI in the company of its architect and desinger Tony Ling. But an interesting nugget about the Chinese visit has since emerged: it appears that Kostya Novoselov, the Nobel-prize-winning Manchester physicist who helped to isolate graphene for the first time, has presented President Xi “with a gift of traditional Chinese-style artwork, which Kostya himself had painted using graphene paint”. We’ve yet to see what this objet d’art looks like, but I’m sure it’s lovely.

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Moving meridians, Stradivarius violins, sunspots and more

The Prime Meridian and the modern reference meridian

Walk the line: Airy meridian is marked as the “Prime Meridian of the World” (dotted line), and the modern reference meridian indicating zero longitude using GPS (solid line).
(Courtesy: 2014 Google Maps, Infoterra & Bluesky)

 

By Tushna Commissariat

A visit to the Royal Observatory in Greenwich is incomplete without walking along the Prime Meridian of the world – the line that literally divides the east from the west – and taking some silly photos across it. But you may be disappointed to know that the actual 0° longitudinal line is nearly 100 m away, towards the east, from the plotted meridian. Indeed, your GPS would readily show you that the line actually cuts through the large park ahead of the observatory. I, for one, am impressed that the original line is off by only 100 m, considering that it was plotted in 1884. A recently published paper in the Journal of Geodesy points out that with the extreme accuracy of modern technology like GPS, which has replaced the traditional telescopic observations used to measure the Earth’s rotation, we can measure this difference. You can read more about it in this article in the Independent.

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The August 2015 issue of Physics World is now out

 

By Matin Durrani

Mention the two words “science policy” and most physicists’ eyes will probably glaze over. Most of us dream of discovering a new planet or finding the Higgs boson – not poring over budget spreadsheets, championing science to politicians or commenting on legislation.

But science policy is vital in today’s world, which depends hugely on scientific research and in the cover feature of the August issue of Physics World, which is now out, Len Fisher and John Tesh offer 12 practical tips for scientists who want their ideas incorporated into science policy. You’ll be intrigued by what the two authors have to say.

Elsewhere in the issue, as my colleague Tushna Commissariat explains in the video above, there’s a great feature based on an interview with the French physicist Hélène Langevin-Joliot – the granddaughter of Marie Curie. In the article, Langevin-Joliot explains what’s known as the “Curie complex” and gives her own tips for scientific success. Langevin-Joliot didn’t suffer from the complex herself, but she acknowledges that it is a big problem for others and, these days, spends her time actively promoting careers for women in science

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Solarquest, Pluto and the importance of New Horizons

A photo of the board game Solarquest, which contains images of all nine planets, several of their moons, and a path between them

The Solarquest board, complete with planets, moons and artificial satellites.

By Margaret Harris

Last night, in honour of the New Horizons mission to Pluto, I pulled out my copy of Solarquest. This classic board game was a childhood favourite of mine, and it’s basically Monopoly in space: instead of buying properties named after streets in Atlantic City, New Jersey (or London, if you’re British), you buy planets, moons and artificial satellites. Then, when your fellow players land on an object you own, you charge them rent.

Such nostalgia is all well and good, I hear you say, but what’s it got to do with New Horizons or Pluto? Well, Solarquest’s inventors clearly took their science seriously. By board game standards, there’s quite a lot of physics in it. For example, you can’t leave a planet unless you roll a number high enough to overcome its gravitational pull, and its Monopoly-like property deed cards include facts about each planet and moon as well as their prices.

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ILC Science Club, science fiction versus science fact and siblings in physics

 

By Hamish Johnston

At the end of next week millions of children in England and Wales will start their summer holidays and many parents will now be scrambling to find activities to keep their little dears occupied. Physics World can recommend a virtual trip to ILC Science Kids Club courtesy of the Tokyo Cable Network and Japan’s Advanced Accelerator Association. ILC stands for International Linear Collider, which is one of several proposed to take over when the Large Hadron Collider is eventually retired. In the first video of the series, a boy called Haru learns why scientists are keen on building accelerators from his Uncle Tomo. The video is in Japanese with English subtitles, so as well as learning about particle physics, your little tykes might even pick up a little Japanese.

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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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Atomic time was born 60 years ago today

 

By Hamish Johnston

“The death of the astronomical second and the birth of atomic time” is how the British physicist Louis Essen described 3 June 1955, when the world’s first practical atomic clock ticked for the first time.

The place was Teddington on the outskirts of London, which is home to the National Physical Laboratory (NPL). Essen’s clock was based on a beam of caesium atoms and was monitored by microwave technology inspired by his wartime work on radar. The clock was more than a metre long and nicknamed the “Flying Bedstead” by engineers at the BBC, who used it as an input for their radio time signal. The clock made atomic time available worldwide for the first time 60 years ago. Then, in 1967, the second was redefined as an SI unit based on an atomic transition in caesium, thereby ending the ancient practice of defining time though astronomical observations.

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Was Bruno Pontecorvo a spy?

Frank Close (centre) speaking at Prospect magazine HQ on 12 March 2015

Reflecting on – Frank Close (centre) discusses the life of the Italian physicist Bruno Pontecorvo, who defected to the Soviet Union in 1950.

By Matin Durrani

Like all good publications, Prospect has a strapline about itself – “the leading magazine of ideas”. Physics World is also about ideas, although sadly our magazine, great though it is, doesn’t have adverts for Cartier watches, Embraer executive jets or the Taj Exotica Resort & Spa in the Maldives as Prospect does. Clearly, some people with ideas have more money to spend than others.

I was kindly invited last week by the deputy editor of Prospect, Jay Elwes, to an event he hosted at the magazine’s headquarters in central London. The event featured the University of Oxford physicist Frank Close, who has just published a new book on the life and times of Bruno Pontecorvo. Close was on hand to discuss the key themes of the book, which is entitled Half Life: the Divided Life of Bruno Pontecorvo. Elwes described the attendees as a “small, high-powered group”, including as it did Pauline Neville Jones, the former chair of the UK’s Joint Intelligence Committee and Jonathan Evans, the former director-general of the British security service MI5.

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