Tag Archives: physics

Tim Blais and A Capella Science

Thanks to David Bruggeman’s July 16, 2014 ‘musical science’ posting on his Pasco Phronesis blog for information about another Canadian ‘science musician’. Tim Blais has been producing science music videos for almost two years now. His first video, posted on YouTube, in August 2012 featured an Adele tune ‘Rolling in the deep’ sung to lyrics featuring the Higgs Boson (‘Rolling in the Higgs’),

He shares the text of the lyrics (from http://www.youtube.com/watch?v=VtItBX1l1VY&list=UUTev4RNBiu6lqtx8z1e87fQ),

There’s a collider under Geneva
Reaching new energies that we’ve never achieved before
Finally we can see with this machine
A brand new data peak at 125 GeV
See how gluons and vector bosons fuse
Muons and gamma rays emerge from something new
There’s a collider under Geneva
Making one particle that we’ve never seen before

The complex scalar
Elusive boson
Escaped detection by the LEP and Tevatron
The complex scalar
What is its purpose?
It’s got me thinking

Chorus:
We could have had a model (Particle breakthrough, at the LHC)
Without a scalar field (5-sigma result, could it be the Higgs)
But symmetry requires no mass (Particle breakthrough, at the LHC)
So we break it, with the Higgs (5-sigma result, could it be the Higgs)

Baby I have a theory to be told
The standard model used to discover our quantum world
SU(3), U(1), SU(2)’s our gauge
Make a transform and the equations shouldn’t change

The particles then must all be massless
Cause mass terms vary under gauge transformation
The one solution is spontaneous
Symmetry breaking

Roll your vacuum to minimum potential
Break your SU(2) down to massless modes
Into mass terms of gauge bosons they go
Fermions sink in like skiers into snow

Lyrics and arrangement by Tim Blais and A Capella Science
Original music by Adele

In a Sept. 17, 2012 article by Ethan Yang for The McGill Daily (University of McGill, Montréal, Québec) Blais describes his background and inspiration,

How does a master’s physics student create a Higgs boson-based parody of Adele’s “Rolling in the Deep” that goes viral and gets featured in popular science magazines and blogs? We sat down with Tim Blais to learn more about the personal experiences leading to his musical and scientific project, “A Capella Science”.

McGill Daily: Could you tell us a little bit about yourself: where you’re from, your childhood, and other experiences that in hindsight you think might have led you to where you are now?
Tim Blais: I grew up in a family of five in the little town of Hudson, Quebec, twenty minutes west of the island of Montreal. My childhood was pretty full of music; I started experimenting with the piano, figuring out songs my older siblings were playing, when I was about four, and soon got actual piano lessons. My mom also ran, and continues to run, our local church choir, so from the time I was three I was singing in front of people as well. Also at about three or four a kid in my preschool introduced me to Bill Nye the Science Guy, which became the only TV I watched for about six years. After kindergarten I didn’t go to school until Grade 10, but was homeschooled by my parents. We had a very multifaceted way of learning [...] that I think allowed me to see the big picture of things without getting bogged down in the horrible little details that are often the stumbling block when you start learning something. That gave me a fascination with science that’s essentially carried me through a science DEC and one-and-a-half university degrees. But my parents have always been super cool about not pressuring us kids to be anything in particular, and now to show for it they’ve got an emerging rock star – my brother, Tom; a dedicated speech pathologist – my sister, Mary-Jane; and me, researcher in incomprehensible physics and recently popular internet fool. I think they did alright.

Since 2012, Blais has graduated with a masters in physics and is now devoted to a life as a musician (from a 2013 [?] posting on redefineschool.com),

Blais has just finished up his master’s degree program at McGill, and he says he’s putting academia aside for a while. “I’ve been in school all my life so I’m switching gears and being a musician this year!” he tweeted. And that career choice is just fine by McGill theoretical physicist Alex Maloney, Blais’ faculty adviser.

To bring us up-to-date with Blais, David has featured the latest A Capella Science music video titled: ‘Eminemium (Choose Yourself)’ in his July 16, 2014 ‘musical science’ posting on the Pasco Phronesis blog.

One last tidbit, Blais will be appearing at Calgary’s (Alberta) Beakerhead ‘festival’ (Sept. 10 – 14, 2014). Specifically, he will be at (from the TELUS Sept. 11, 2014 event page):

TELUS Spark Adults Only Night
September 11 [2014] @ 6:00 pm – 10:00 pm
[TELUS Spark Adults Only Night]

Mark your calendar for this special Beakerhead-themed adult night at TELUS Spark Science Centre. Meet the Festo Automation folks from Germany and see their mind-boggling biomechanical creatures up close. Are you also a fan of the internet sensation A Capella Science Bohemian Gravity? Meet the maker, Tim Blais, here in Calgary for Beakerhead.

This event is included with Admission and Membership. TOP TIP: Skip the queue with advance tickets. [go to TELUS event page to buy tickets]

You can find out more about A Capella Science on its Facebook page or via its Twitter feed. For more about Beakerhead events, go here.

Graphene, Perimeter Institute, and condensed matter physics

In short, researchers at Canada’s Perimeter Institute are working on theoretical models involving graphene. which could lead to quantum computing. A July 3, 2014 Perimeter Institute news release by Erin Bow (also on EurekAlert) provides some insight into the connections between graphene and condensed matter physics (Note: Bow has included some good basic explanations of graphene, quasiparticles, and more for beginners),

One of the hottest materials in condensed matter research today is graphene.

Graphene had an unlikely start: it began with researchers messing around with pencil marks on paper. Pencil “lead” is actually made of graphite, which is a soft crystal lattice made of nothing but carbon atoms. When pencils deposit that graphite on paper, the lattice is laid down in thin sheets. By pulling that lattice apart into thinner sheets – originally using Scotch tape – researchers discovered that they could make flakes of crystal just one atom thick.

The name for this atom-scale chicken wire is graphene. Those folks with the Scotch tape, Andre Geim and Konstantin Novoselov, won the 2010 Nobel Prize for discovering it. “As a material, it is completely new – not only the thinnest ever but also the strongest,” wrote the Nobel committee. “As a conductor of electricity, it performs as well as copper. As a conductor of heat, it outperforms all other known materials. It is almost completely transparent, yet so dense that not even helium, the smallest gas atom, can pass through it.”

Developing a theoretical model of graphene

Graphene is not just a practical wonder – it’s also a wonderland for theorists. Confined to the two-dimensional surface of the graphene, the electrons behave strangely. All kinds of new phenomena can be seen, and new ideas can be tested. Testing new ideas in graphene is exactly what Perimeter researchers Zlatko Papić and Dmitry (Dima) Abanin set out to do.

“Dima and I started working on graphene a very long time ago,” says Papić. “We first met in 2009 at a conference in Sweden. I was a grad student and Dima was in the first year of his postdoc, I think.”

The two young scientists got to talking about what new physics they might be able to observe in the strange new material when it is exposed to a strong magnetic field.

“We decided we wanted to model the material,” says Papić. They’ve been working on their theoretical model of graphene, on and off, ever since. The two are now both at Perimeter Institute, where Papić is a postdoctoral researcher and Abanin is a faculty member. They are both cross-appointed with the Institute for Quantum Computing (IQC) at the University of Waterloo.

In January 2014, they published a paper in Physical Review Letters presenting new ideas about how to induce a strange but interesting state in graphene – one where it appears as if particles inside it have a fraction of an electron’s charge.

It’s called the fractional quantum Hall effect (FQHE), and it’s head turning. Like the speed of light or Planck’s constant, the charge of the electron is a fixed point in the disorienting quantum universe.

Every system in the universe carries whole multiples of a single electron’s charge. When the FQHE was first discovered in the 1980s, condensed matter physicists quickly worked out that the fractionally charged “particles” inside their semiconductors were actually quasiparticles – that is, emergent collective behaviours of the system that imitate particles.

Graphene is an ideal material in which to study the FQHE. “Because it’s just one atom thick, you have direct access to the surface,” says Papić. “In semiconductors, where FQHE was first observed, the gas of electrons that create this effect are buried deep inside the material. They’re hard to access and manipulate. But with graphene you can imagine manipulating these states much more easily.”

In the January paper, Abanin and Papić reported novel types of FQHE states that could arise in bilayer graphene – that is, in two sheets of graphene laid one on top of another – when it is placed in a strong perpendicular magnetic field. In an earlier work from 2012, they argued that applying an electric field across the surface of bilayer graphene could offer a unique experimental knob to induce transitions between FQHE states. Combining the two effects, they argued, would be an ideal way to look at special FQHE states and the transitions between them.

Once the scientists developed their theory they went to work on some experiments,

Two experimental groups – one in Geneva, involving Abanin, and one at Columbia, involving both Abanin and Papić – have since put the electric field + magnetic field method to good use. The paper by the Columbia group appears in the July 4 issue of Science. A third group, led by Amir Yacoby of Harvard, is doing closely related work.

“We often work hand-in-hand with experimentalists,” says Papić. “One of the reasons I like condensed matter is that often even the most sophisticated, cutting-edge theory stands a good chance of being quickly checked with experiment.”

Inside both the magnetic and electric field, the electrical resistance of the graphene demonstrates the strange behaviour characteristic of the FQHE. Instead of resistance that varies in a smooth curve with voltage, resistance jumps suddenly from one level to another, and then plateaus – a kind of staircase of resistance. Each stair step is a different state of matter, defined by the complex quantum tangle of charges, spins, and other properties inside the graphene.

“The number of states is quite rich,” says Papić. “We’re very interested in bilayer graphene because of the number of states we are detecting and because we have these mechanisms – like tuning the electric field – to study how these states are interrelated, and what happens when the material changes from one state to another.”

For the moment, researchers are particularly interested in the stair steps whose “height” is described by a fraction with an even denominator. That’s because the quasiparticles in that state are expected to have an unusual property.

There are two kinds of particles in our three-dimensional world: fermions (such as electrons), where two identical particles can’t occupy one state, and bosons (such as photons), where two identical particles actually want to occupy one state. In three dimensions, fermions are fermions and bosons are bosons, and never the twain shall meet.

But a sheet of graphene doesn’t have three dimensions – it has two. It’s effectively a tiny two-dimensional universe, and in that universe, new phenomena can occur. For one thing, fermions and bosons can meet halfway – becoming anyons, which can be anywhere in between fermions and bosons. The quasiparticles in these special stair-step states are expected to be anyons.

In particular, the researchers are hoping these quasiparticles will be non-Abelian anyons, as their theory indicates they should be. That would be exciting because non-Abelian anyons can be used in the making of qubits.

Graphene qubits?

Qubits are to quantum computers what bits are to ordinary computers: both a basic unit of information and the basic piece of equipment that stores that information. Because of their quantum complexity, qubits are more powerful than ordinary bits and their power grows exponentially as more of them are added. A quantum computer of only a hundred qubits can tackle certain problems beyond the reach of even the best non-quantum supercomputers. Or, it could, if someone could find a way to build stable qubits.

The drive to make qubits is part of the reason why graphene is a hot research area in general, and why even-denominator FQHE states – with their special anyons – are sought after in particular.

“A state with some number of these anyons can be used to represent a qubit,” says Papić. “Our theory says they should be there and the experiments seem to bear that out – certainly the even-denominator FQHE states seem to be there, at least according to the Geneva experiments.”

That’s still a step away from experimental proof that those even-denominator stair-step states actually contain non-Abelian anyons. More work remains, but Papić is optimistic: “It might be easier to prove in graphene than it would be in semiconductors. Everything is happening right at the surface.”

It’s still early, but it looks as if bilayer graphene may be the magic material that allows this kind of qubit to be built. That would be a major mark on the unlikely line between pencil lead and quantum computers.

Here are links for further research,

January PRL paper mentioned above: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.046602

Experimental paper from the Geneva graphene group, including Abanin: http://pubs.acs.org/doi/abs/10.1021/nl5003922

Experimental paper from the Columbia graphene group, including both Abanin and Papić: http://arxiv.org/abs/1403.2112. This paper is featured in the journal Science.

Related experiment on bilayer graphene by Amir Yacoby’s group at Harvard: http://www.sciencemag.org/content/early/2014/05/28/science.1250270

The Nobel Prize press release on graphene, mentioned above: http://www.nobelprize.org/nobel_prizes/physics/laureates/2010/press.html

I recently posted a piece about some research into the ‘scotch-tape technique’ for isolating graphene (June 30, 2014 posting). Amusingly, Geim argued against coining the technique as the ‘scotch-tape’ technique, something I found out only recently.

Physics, nanopores, viruses, and DNA

A June 17, 2014 news item on Azonano describes a project which could help scientists decode strands of DNA at top speeds,

Nanopores may one day lead a revolution in DNA sequencing. By sliding DNA molecules one at a time through tiny holes in a thin membrane, it may be possible to decode long stretches of DNA at lightning speeds. Scientists, however, haven’t quite figured out the physics of how polymer strands like DNA interact with nanopores. Now, with the help of a particular type of virus, researchers from Brown University have shed new light on this nanoscale physics.

“What got us interested in this was that everybody in the field studied DNA and developed models for how they interact with nanopores,” said Derek Stein, associate professor of physics and engineering at Brown [Brown University, US] who directed the research. “But even the most basic things you would hope models would predict starting from the basic properties of DNA — you couldn’t do it. The only way to break out of that rut was to study something different.”

A June 16, 2014 Brown University news release (also on EurekAlert), which originated the news item, describes the problems with nanopores,

The concept behind nanopore sequencing is fairly simple. A hole just a few billionths of a meter wide is poked in a membrane separating two pools of salty water. An electric current is applied to the system, which occasionally snares a charged DNA strand and whips it through the pore — a phenomenon called translocation. When a molecule translocates, it causes detectable variations in the electric current across the pore. By looking carefully at those variations in current, scientists may be able to distinguish individual nucleotides — the A’s, C’s, G’s and T’s coded in DNA molecules.

The first commercially available nanopore sequencers may only be a few years away, but despite advances in the field, surprisingly little is known about the basic physics involved when polymers interact with nanopores. That’s partly because of the complexities involved in studying DNA. In solution, DNA molecules form balls of random squiggles, which make understanding their physical behavior extremely difficult.

For example, the factors governing the speed of DNA translocation aren’t well understood. Sometimes molecules zip through a pore quickly; other times they slither more slowly, and nobody completely understands why.

One possible explanation is that the squiggly configuration of DNA causes each molecule to experience differences in drag as they’re pulled through the water toward the pore. “If a molecule is crumpled up next to the pore, it has a shorter distance to travel and experiences less drag,” said Angus McMullen, a physics graduate student at Brown and the study’s lead author. “But if it’s stretched out then it would feel drag along the whole length and that would cause it to go slower.”

The news release then goes on to detail a possible solution to the problem of why DNA translocation varies in speed. Answering this question about DNA translocation could lead to faster and more accurate nanopore sequencing,

The drag effect is impossible to isolate experimentally using DNA, but the virus McMullen and his colleagues studied offered a solution.

The researchers looked at fd, a harmless virus that infects e. coli bacteria. Two things make the virus an ideal candidate for study with nanpores. First, fd viruses are all identical clones of each other. Second, unlike squiggly DNA, fd virus is a stiff, rod-like molecule. Because the virus doesn’t curl up like DNA does, the effect of drag on each one should be essentially the same every time.

With drag eliminated as a source of variation in translocation speed, the researchers expected that the only source of variation would be the effect of thermal motion. The tiny virus molecules constantly bump up against the water molecules in which they are immersed. A few random thermal kicks from the rear would speed the virus up as it goes through the pore. A few kicks from the front would slow it down.

The experiments showed that while thermal motion explained much of the variation in translocation speed, it didn’t explain it all. Much to the researchers’ surprise, they found another source of variation that increased when the voltage across the pore was increased.

“We thought that the physics would be crystal clear,” said Jay Tang, associate professor of physics and engineering at Brown and one of the study’s co-authors. “You have this stiff [virus] with well-defined diameter and size and you would expect a very clear-cut signal. As it turns out, we found some puzzling physics we can only partially explain ourselves.”

The researchers can’t say for sure what’s causing the variation they observed, but they have a few ideas.

“It’s been predicted that depending on where [an object] is inside the pore, it might be pulled harder or weaker,” McMullen said. “If it’s in the center of the pore, it pulls a little bit weaker than if it’s right on the edge. That’s been predicted, but never experimentally verified. This could be evidence of that happening, but we’re still doing follow up work.

The new approach using a virus answered questions while leading to new insights and possibilities (from the news release),

A better understanding of translocation speed could improve the accuracy of nanopore sequencing, McMullen says. It would also be helpful in the crucial task of measuring the length of DNA strands. “If you can predict the translocation speed,” McMullen said, “then you can easily get the length of the DNA from how long its translocation was.”

The research also helped to reveal other aspects of the translocation process that could be useful in designing future devices. The study showed that the electrical current tends to align the viruses head first to the pore, but on occasions when they’re not lined up, they tend to bounce around on the edge of the pore until thermal motion aligns them to go through. However, when the voltage was turned too high, the thermal effects were suppressed and the virus became stuck to the membrane. That suggests a sweet spot in voltage where headfirst translocation is most likely.

None of this is observable directly — the system is simply too small to be seen in action. But the researchers could infer what was happening by looking at slight changes in the current across the pore.

“When the viruses miss, they rattle around and we see these little bumps in the current,” Stein said. “So with these little bumps, we’re starting to get an idea of what the molecule is doing before it slides through. Normally these sensors are blind to anything that’s going on until the molecule slides through.”

That would have been impossible to observe using DNA. The floppiness of the DNA molecule allows it to go through a pore in a folded configuration even if it’s not aligned head-on. But because the virus is stiff, it can’t fold to go through. That enabled the researchers to isolate and observe those contact dynamics.

“These viruses are unique,” Stein said. “They’re like perfect little yardsticks.”

In addition to shedding light on basic physics, the work might also have another application. While the fd virus itself is harmless, the bacteria it infects — e. coli — is not. Based on this work, it might be possible to build a nanopore device for detecting the presence of fd, and by proxy, e. coli. Other dangerous viruses — Ebola and Marburg among them — share the same rod-like structure as fd.

“This might be an easy way to detect these viruses,” Tang said. “So that’s another potential application for this.”

Here’s a link to and a citation for the paper,

Stiff filamentous virus translocations through solid-state nanopores by Angus McMullen, Hendrick W. de Haan, Jay X. Tang, & Derek Stein. Nature Communications 5, Article number: 4171 doi:10.1038/ncomms5171 Published 16 June 2014

This paper is behind a paywall.

Liverpool Science Festival

The first Liverpool Science Festival (UK)  is being held June 25 – July 9, 2014 according to a June 6, 2014 Festival announcement, which has a very exciting lineup guests and events,

Liverpool Science Festival was founded with the mission to create a unique platform to engage the public in all things scientific – from natural science to science in its most interdisciplinary and cultural contexts.

For 2014, we are part of the science programme of events during the UK’s inaugural International Festival for Business (IFB 2014). We are also proud to be contributing events to the official 60th Anniversary celebrations of CERN – birthplace of the internet, the Large Hadron Collider (LHC), site of the discovery of the Higgs Boson – and home to scientists from more than 100 countries.

Highlights of the festival include:

The Hitchhiker’s Guide to the Solar System:
1 river, 9 planets, 14 days and 70 miles

An ambitious public engagement project setting off from the source of the Mersey on a journey to the sea, culminating in a series of pop-up astronomy events and happenings which will mark out the positions of the planets and a scale model of the Solar System. The journey begins on 25 June with astronomy at the source of the Mersey (Stockport, Cheshire) and ends on the evening of 9 July on Crosby Beach.

www.liverpoolsciencefestival.com/the-hitchhikers-guide-to-the-solar-system

This is the second reference to the Hitchhiker’s Guide to the Galaxy that I’ve had on this blog in less than one week. Rice University (US) researcher, Nikta Fakhri, referenced the book in a description of her work on carbon nanotubes in a June 5, 2014 post titled, Hitchhikers at the nanoscale show how cells stir themselves. (For anyone unfamiliar with the book and/or its cultural import, here’s a Wikipedia entry devoted to it.)

Next the festival is featuring its physics with two live events, one featuring Jon Butterworth and the other featuring Butterworth and Lyn Evans (from the announcement),

“If you want to know what being a professional scientist is really like, read Smashing Physics!” – Professor Brian Cox

Professor Jon Butterworth (CERN {European Organization for Nuclear Research ], UCL [University College of London] & Guardian Science) at Waterstones Liverpool One on 27 June – one of the UK’s foremost physicists, on Smashing Physics, his smashing new science book about the hunt for Higgs Boson and real life as a real scientist at the cusp of scientific discovery.

www.liverpoolsciencefestival.com/smashing-physics-ft-prof-jon-butterworth  

Dr Lyn Evans (chief engineer at CERN who spent 15 years leading the team constructing the LHC, the most complex machine ever built) flies in from CERN, Geneva, to speak on Engineering the LHCon 28 June at Stanley Dock.

www.liverpoolsciencefestival.com/engineering-the-lhc-ft-prof-jon-butterworth-dr-lyn-evans

Butterworth has a blog, Life and Physics, hosted by the Guardian newspaper as part of its science blog network. I find his writing to be quite approachable. From time to time he starts talking in ‘physics’ but he usually prepares his audience for these brief outbursts by explaining the concept first in plain English and/or approaching the topic from a mundane angle, e.g., ‘it can be lonely being a physicist’.

Evans was in Vancouver, Canada last February 2013 to launch a global project (from a Feb. 18, 2013 news release posted on The Exchange),

… On February 21 [2013], TRIUMF will do its part in fulfilling this role as it plays host to a meeting of the leaders of the major high-energy physics laboratories around the world. The key outcome of this meeting will be the completion of an existing global collaboration and the launch of a new team that will coordinate and advance the global development work for the Linear Collider, the world’s next accelerator project aimed at pulling back the curtain on the secrets of nature’s most innermost workings.

The new Linear Collider Collaboration (LCC) will combine the two next-generation collider projects, the International Linear Collider (ILC) and the Compact Linear Collider (CLIC), under one organizational roof and will be headed by Lyn Evans, former Project Manager of CERN’s Large Hadron Collider (LHC). Some may recognize Lyn Evans as recent co-recipient of the Milner Foundation’s Fundamental Physics Prize. (Evans will give a public science lecture on Wednesday evening at Science World.)

The Linear Collider Board, headed by the University of Tokyo’s Sachio Komamiya, is a new oversight committee for the LCC that will take up office at the same time.

Evans’ public talk mentioned in my Jan. 29, 2013 posting of Vancouver science events features a description that resembles the one for the Liverpool Science Festival (from my posting),

There is a video of the Evan’s February 20, 2013 talk here for anyone who can’t get to Evans’ talk in Liverpool.

Here’s more from the Liverpool Science Festival announcement,

“Wax has an extraordinary mind, and she has brought it to bear with her trademark wit.” – Stephen Fry

Ruby Wax brings her unique wit to the festival with her Sane New World stage show, at Stanley Dock on the evening of 28 June. Since obtaining a Masters Degree in Mindfulness-based Cognitive Therapy from Oxford University, Wax has become a respected campaigner for mental illness in the UK.

www.liverpoolsciencefestival.com/sane-new-world-ft-ruby-wax

“As the scouts say – be prepared! Say your prayers that you never need this book” – Bear Grylls

Dr Lewis Dartnell presents The Knowledge, How to Rebuild Our World from Scratch, his guide to everything you need to know to survive the apocalypse, avert another Dark Age and accelerate the rebuilding of civilization. Based on Dartnell’s best-selling book which has been the top-selling science book on Amazon in recent weeks.

www.liverpoolsciencefestival.com/the-knowledge-how-to-rebuild-our-world-from-scratch-ft-dr-lewis-dartnel 

For the last highlight from the festival announcement, we return to physics,

“Mind-blowing.” – New York Times on Particle Fever

Screening of Particle Fever – Liverpool Science Festival has special permission to screen this new movie on CERN and the hunt for the Higgs Boson, three months ahead of its UK general release. The screening will be followed by a Q&A featuring Professor Tara Shears, CERN particle physicist and the University of Liverpool’s first ever female professor of physics. The screening takes place on the evening of 5 July at Stanley Dock.

www.liverpoolsciencefestival.com/particle-fever

“Particle Fever” received its May 16, 2014 Canadian premiere in Vancouver, which included a discussion with a panel of physicists.  (There was a also a showing when the Vancouver International Film Festival was held in Oct. 2013 and that has a separate webpage description. I assume a showing during a film festival is not considered a premiere) Here’s a description of the documentary from the Vancouver International Film Festival theatre’s Particle Fever webpage,

May 16th, 7:00 PM screening will be followed by a panel discussion of physicists, copresented by TRIUMF and supported by Reel Causes.
May 19th, 6:30 PM screening is open to youth, the film is rated PG

Imagine being able to watch as Edison turned on the first light bulb, or as Franklin received his first jolt of electricity. Physicist turned filmmaker Mark Levinson gives us the modern equivalent of those world-changing moments with this as-it-happens front-row seat to our generation’s most significant and inspiring scientific breakthrough—the launch of the Large Hadron Collider, near Geneva, built to recreate conditions that existed just moments after the Big Bang and to potentially explain the origin of all matter. Following a team of brilliant scientists, Levinson—aided by master editor Walter Murch—crafts a celebration of discovery while revealing the very human stories behind this epic machine.

“Set in crummy offices and towering facilities worthy of a Bond movie, the documentary is edited with the momentum of a thriller by the great Walter Murch (Apocalypse Now), as we follow six scientists. They come across as simultaneously passionate thinkers and endearing nerds: There’s the elegant Italian physicist and classical pianist Fabiola Gianotti, obliviously stepping into traffic while talking excitedly on her phone. Or postdoc student and experimental physicist Monica Dunford, declaring effusively: “It’s unbelievably fantastic how great data is.”

There is a Particle Fever May 14, 2014 review by Ken Eisner in the Vancouver local publication, The Georgia Straight.  Peculiarly and in the midst a poetic movie review, Eisner starts complaining about physics funding in the US,

In the rarefied world of quantum physics, “The ability to leap from failure to failure with undiminished enthusiasm is the key to success.” This is according to one scientist prominently featured in an absorbing doc that takes as its locus the Large Hadron Collider, in Switzerland, where some pretty amazing breakthroughs—and a few duds—have happened in the past few years.

The subtext is the struggle to keep pure learning alive with no promise of tangible return, except the possibility of knowledge that will forever alter our understanding of life. …

… its main activities take place at the huge site of CERN, near Lake Geneva—built there largely because right-wingers have managed to kill off nonprofit science in the U.S. [emphasis mine] Its hivelike realities, with staff drawn from a hundred nations, make it resemble a space station on Earth. …

I think there may have been a few other important  factors influencing the Large Hadron Collider’s location.

Getting back to Liverpool, if the website is any indication, this science festival has been beautifully conceptualized and thoughtfully implemented. I wish the organizers all the best as they get ready to launch their festival.

Finally, in the description of the Hitchhiker’s Guide to the Solar System event, I noticed a reference to the Mersey, which brought to mind this song from 1965. Gerry & the Pacemakers sing Ferry Cross the Mersey,

Canadian government spending on science and technology is down for the fourth year in a row

It seems there a steady downward trajectory where Canadian science and technology spending is concerned. Stephen Hui in a May 28, 2014 article for the Georgia Straight, breaks the latest news from Statistics Canada (Note: A link has been removed),

The Canadian government is expected to spend less money on science and technology in 2014-15 compared to the previous fiscal year, continuing a trend that began in 2011-12. [emphasis mine]

According to Statistics Canada, federal departments and agencies are projected to record $10.3 billion (all figures in current dollars) in science and tech expenditures in 2014-15, a decrease of 5.4 percent from 2013-14.

Federal science and tech spending peaked at $12 billion in 2010-11 and has declined every year since then.

In fact, an earlier July 30, 2013 news item in Huffington Post noted a decrease in the 2013-14 budget,

The federal agency says spending for the 2013-14 fiscal year is expected to decrease 3.3 per cent from the previous period, to $10.5 billion.

It adds research and development is expected to account for two-thirds of anticipated science and technology spending.

The finding is contained in Statistics Canada’s annual survey of all federal government departments and agencies believed to be performing or funding science and technology activities.

The survey, released Tuesday [July 2013], covers the period from Sept. 10, 2012 to Jan. 11, 2013.

Statistics Canada says spending on science and technology has been steadily decreasing since 2009-10. [emphasis mine]

According to Hui’s source, the Statistics Canada’s The Daily, May 28,2014: Federal government spending on science and technology, 2014/2015, the trend started in 2011/12. I’m not sure which specific Statistics Canada publication was the source for the Huffington Post’s start date for the decline.

Interestingly, the OECD (Organization for Economic Cooperation and Development) Science, Technology and Industry Scoreboard 2013 dates the decline to 2001. From my Oct. 30, 2013 posting (excerpted from the scorecard),

Canada is among the few OECD countries where R&D expenditure declined between 2000 and 2011 (Figure 1). This decline was mainly due to reduced business spending on R&D. It occurred despite relatively generous public support for business R&D, primarily through tax incentives. In 2011, Canada was amongst the OECD countries with the most generous tax support for R&D and the country with the largest share of government funding for business R&D being accounted for by tax credits (Figure 2). …

If I understand this rightly, Canadian business spending on R&D has been steadily declining for more than a decade and, since 2010 or so, Canadian government spending is also steadily declining. Does anyone else see this as a problem?

The contrast with Brazil is startling. From a June 2, 2014 Institute of Physics news release (also on EurekAlert but dated as June 1, 2014),

As Brazil gets set to host the 2014 FIFA World Cup this month amid concerns about the amount of public money being used to stage the world’s largest sporting event, Physics World‘s editorial team reveals in a new special report how physicists are taking full advantage of the four-fold increase in science funding that the government has invested over the past 10 years.

Since this news comes from the physics community, the news release focuses on physics-related developments,

Negotiations are currently under way to make Brazil an associate member of the CERN particle-physics lab in Geneva, while the country is also taking a leading role in the Pierre Auger Observatory – an international project based in Argentina designed to study ultrahigh-energy cosmic rays. [emphasis mine]

Building is also under way to create a world-leading synchrotron source, Sirius and Brazil is poised to become the first non-European member of the European Southern Observatory.

Carlos Henrique de Brito Cruz, a physicist at the University of Campinas and scientific director at FAPESP – one of Brazil’s most important funding agencies – told Physics World that the expectation is for Brazilian scientists to take a leadership role in such large research projects “and not just watch as mere participants”.

Considering the first graduate programmes in physics did not emerge in Brazilian universities until 1960, the rise to becoming one of the leading participants in international collaborations has been a rapid one.

The reputation of Brazilian physics has grown in line with a massive increase in science funding, which rose from R$12bn (about £3bn) in 2000 to R$50bn (around £13bn) in 2011.

Brazil’s spending on R&D now accounts for 1.2% of the gross domestic product and 40% of the total funding comes from companies.

The Brazilian Physical Society has around 6000 members comprising almost all research physicists in the country, who wrote around 25 000 research articles in international science journals between 2007 and 2010.

A lack of funding in the past had forced Brazilian scientists to focus on cheaper, theoretical research, but this has now changed and there is an almost even split between theory and experiment at universities.

Yet Brazil still suffers from several long-standing problems, the most significant being the poor standard of science education in high schools. A combination of low pay and lack of recognition makes physics teaching an unpopular choice of occupation despite attempts to tackle the problem.

Even those students who do see physics as a career option end up struggling and under-prepared for the rigours of an undergraduate physics course. Vitor de Souza, an astrophysicist at the Physics Institute at São Carlos, which is part of the University of São Paulo, told Physics World that of the 120 students who start a four-year physics degree at his university, only 10-20 actually graduate.

Another problem in Brazil is a fundamental disconnect between academic research and industrial development, with universities not sure how to handle spin-off firms and companies suspicious of universities.

More broadly, physicists feel that Brazilian society does not recognize the value of science, and that this can only be overcome when the physics community becomes more ambitious and more audacious.

You can find the special issue of Physics World here (it is open access).

As I noted in this May 30, 2014 posting (and elsewhere) featuring the new Agency of Science Communication, Technology and Innovation of Argentina (ACCTINA),,

The PCST [13th International Public Communication of Science and Technology Conference] international conference takes place every two years. The 2014 PCST conference took place in Salvador, Brazil. Conferences like this would seem to confirm the comments I made in a May 20, 2014 posting,

Returning to 2014, the [World Cup {soccer}] kickoff in Brazil (if successful) symbolizes more than an international athletic competition or a technical/medical achievement, this kick-off symbolizes a technological future for Brazil and its place on the world stage (despite the protests and social unrest) .

While the science and technology community in Brazil has its concerns, I imagine most Canadian scientists would thrill to being the recipients of the funding bonanza of 1.2%  of the gross domestic product. According to the Conference Board of Canada, research and development spending in Canada was 0.8% of GDP for 2011 (from the Conference Board of Canada’s Public R&D spending webpage),

[downloaded from http://www.conferenceboard.ca/hcp/details/innovation/publicrandd.aspx]

[downloaded from http://www.conferenceboard.ca/hcp/details/innovation/publicrandd.aspx]

Did you notice, Canada the in 2011 was on the edge of getting a C grade along with the US? Meanwhile, if Brazil was listed, it would get top marks.

The question as to how much money is not enough for research and development (R&D) spending is complex and I don’t think it’s easily answered but it would be nice to see some discussion.

So, you found a quantum trimer. What is it, again?

The University of Innsbruck produced a rather intriguing May 13, 2014 news release (also a May 13, 2014 news item on Nanowerk and on EurekAlert),

Eight years ago Rudolf Grimm’s research group was the first to observe an Efimov state in an ultracold quantum gas. The Russian physicist Vitali Efimov theoretically predicted this exotic bound state of three particles in the 1970s. He forecast that three particles would form a bound state due to their quantum mechanical properties, under conditions when a two-body bound state would be absent. What is even more astounding: When the distance between the particles is increased by factor 22.7, another Efimov state appears, leading to an infinite series of these states. Until now this essential ingredient of the famous scenario has remained elusive and experimentally proving the periodicity of the famous scenario has presented a challenge. “There have been some indications that particles continuously create three-body states if the distance is increased by this factor,” says Rudolf Grimm from the Institute of Experimental Physics of the University of Innsbruck and the Institute of Quantum Physics and Quantum Optics of the Austrian Academy of Sciences. “Proving the scenario was very difficult but we have finally been successful.”

I think the second Efimov state is the quantum trimer but the news release provides no explanation, mentioning the trimer in its headline only.  On the plus side, there’s a very ‘cool’ explanation of quantum gases,

Ultracold quantum gases are highly suited for studying and observing quantum phenomena of particle systems experimentally as the interaction between atoms are well tunable by a magnetic field. However, Rudolf Grimm’s research group got very close to the limits of what is possible experimentally when they had to increase the distance between the particles to one micrometer to be able to observe the second Efimov state. “This corresponds to 20,000 times the radius of a hydrogen atom,” explains Grimm. “Compared to a molecule, this is a gigantic structure.” This meant that the physicists had to be particularly precise with their work. What greatly helped the researchers in Innsbruck was their extensive experience with ultracold quantum gases and their great technical expertise. Their final result shows that the second Efimov state is larger than the first one by a factor of 21.0 with a measurement uncertainty of 1.3. “This small deviation from the factor 22.7 may be attributed to the physics beyond the ideal Efimov state, which is also an exciting topic,” explains Rudolf Grimm.

As for why this Efimov state holds such interest, I found the explanation perplexing but remain intrigued,

The scientific community’s interest in this phenomenon lies in its universal character. The law is equally applicable to nuclear physics, where strong interaction is responsible for the binding of particles in the atomic nucleus, and to molecular interactions that are based on electromagnetic forces. “Interaction between two particles and between many particles is well studied,” says Grimm. “But we still need to investigate and learn about phenomena that arise from the interaction between only a few particles. The Efimov states are the basic example for this.”

Here’s a link to and a citation for the paper,

Observation of the Second Triatomic Resonance in Efimov’s Scenario by
Bo Huang, Leonid A. Sidorenkov, Rudolf Grimm, and Jeremy M. Hutson. Phys. Rev. Lett. 112, 190401 – Published 12 May 2014 DOI: http://dx.doi.org/10.1103/PhysRevLett.112.190401
© 2014 American Physical Society

This article is behind a paywall.

The university provided an illustration of an Efimov state,

The mysterious Efimov scenario (Illustration: IQOQI/Harald Ritsch)

The mysterious Efimov scenario (Illustration: IQOQI/Harald Ritsch)

Beautiful, isn’t it?

From the quantum to the cosmos; an event at Vancouver’s (Canada) Science World

ARPICO (Society of Italian Researchers & Professionals in Western Canada) sent out an April 9, 2014 announcement,

FROM THE QUANTUM TO THE COSMOS

May 7 [2014] “Unveiling the Universe” lecture registration now open:

Join Science World and TRIUMF on Wednesday, May 7, at Science World at TELUS World of Science in welcoming Professor Edward “Rocky” Kolb, the Arthur Holly Compton Distinguished Service Professor of Astronomy and Astrophysics at the University of Chicago, for his lecture on how the laws of quantum physics at the tiniest distances relate to structures in the universe at the largest scales. He also will highlight recent spectacular results into the nature of the Big Bang from the orbiting Planck satellite and the South Pole-based BICEP2 telescope.

Doors open at 6:15pm and lecture starts at 7pm. It will be followed by an audience Q&A session.

Tickets are free but registration is required. Details on the registration page (link below)
See http://www.eventbrite.ca/o/unveiling-the-universe-lecture-series-2882137721?s=23658359 for more information.

You can go here to the Science World website for more details and another link for tickets,

Join Science World, TRIUMF and guest speaker Dr Rocky Kolb on Wednesday, May 7 [2014], for another free Unveiling the Universe public lecture about the inner space/outer space connection that may hold the key to understanding the nature of dark matter, dark energy and the mysterious seeds of structure that grew to produce everything we see in the cosmos.

I notice Kolb is associated with the Fermi Lab, which coincidentally is where TRIUMF’s former director, Nigel Lockyer is currently located. You can find out more about Kolb on his personal webpage, where I found this description from his repertoire of talks,

Mysteries of the Dark Universe
Ninety-five percent of the universe is missing! Astronomical observations suggest that most of the mass of the universe is in a mysterious form called dark matter and most of the energy in the universe is in an even more mysterious form called dark energy. Unlocking the secrets of dark matter and dark energy will illuminate the nature of space and time and connect the quantum with the cosmos.

Perhaps this along with the next bit gives you a clearer idea of what Kolb will be discussing. He will also be speaking at TRIUMF, Canada’s national laboratory of particle and nuclear physics, from the events page,

Wed ,2014-05-07    14:00    Colloquium    Rocky Kolb, Fermilab     Auditorium    The Decade of the WIMP
Abstract:    The bulk of the matter in the present universe is dark. The most attractive possibility for the nature of the dark matter is a new species of elementary particle known as a WIMP (a Weakly Interacting Massive Particle). After a discussion of how a WIMP might fit into models of particle physics, I will review the current situation with respect to direct detection, indirect detection, and collider production of WIMPs. Rapid advances in the field should enable us to answer by the end of the decade whether our universe is dominated by WIMPs.

You may want to get your tickets soon as other lectures in the Unveiling the Universe series have gone quickly.

Violating the 2nd law of thermodynamics—temporarily—at the nanoscale

For anyone unfamiliar with the laws of thermodynamics or anyone who enjoys some satire with their music, here’s the duo of Flanders & Swann with the ‘First and Second Law’ in a 1964 performance,

According to a March 31, 2014 news item on Nanowerk, it seems, contrary to scientific thought and Flanders & Swann, the 2nd law can be violated, for a time, albeit at the nanoscale,

Objects with sizes in the nanometer range, such as the molecular building blocks of living cells or nanotechnological devices, are continuously exposed to random collisions with surrounding molecules. In such fluctuating environments the fundamental laws of thermodynamics that govern our macroscopic world need to be rewritten. An international team of researchers from Barcelona, Zurich and Vienna found that a nanoparticle trapped with laser light temporarily violates the famous second law of thermodynamics, something that is impossible on human time and length scale.

A March 31, 2014 University of Vienna news release on EurekAlert, which originated the news item, describes the 2nd law and gives details about the research,

Watching a movie played in reverse often makes us laugh because unexpected and mysterious things seem to happen: glass shards lying on the floor slowly start to move towards each other, magically assemble and suddenly an intact glass jumps on the table where it gently gets to a halt. Or snow starts to from a water puddle in the sun, steadily growing until an entire snowman appears as if molded by an invisible hand. When we see such scenes, we immediately realize that according to our everyday experience something is out of the ordinary. Indeed, there are many processes in nature that can never be reversed. The physical law that captures this behavior is the celebrated second law of thermodynamics, which posits that the entropy of a system – a measure for the disorder of a system – never decreases spontaneously, thus favoring disorder (high entropy) over order (low entropy).

However, when we zoom into the microscopic world of atoms and molecules, this law softens up and looses its absolute strictness. Indeed, at the nanoscale the second law can be fleetingly violated. On rare occasions, one may observe events that never happen on the macroscopic scale such as, for example heat transfer from cold to hot which is unheard of in our daily lives. Although on average the second law of thermodynamics remains valid even in nanoscale systems, scientists are intrigued by these rare events and are investigating the meaning of irreversibility at the nanoscale.

Recently, a team of physicists of the University of Vienna, the Institute of Photonic Sciences in Barcelona and the Swiss Federal Institute of Technology in Zürich succeeded in accurately predicting the likelihood of events transiently violating the second law of thermodynamics. They immediately put the mathematical fluctuation theorem they derived to the test using a tiny glass sphere with a diameter of less than 100 nm levitated in a trap of laser light. Their experimental set-up allowed the research team to capture the nano-sphere and hold it in place, and, furthermore, to measure its position in all three spatial directions with exquisite precision. In the trap, the nano-sphere rattles around due to collisions with surrounding gas molecules. By a clever manipulation of the laser trap the scientists cooled the nano-sphere below the temperature of the surrounding gas and, thereby, put it into a non-equilibrium state. They then turned off the cooling and watched the particle relaxing to the higher temperature through energy transfer from the gas molecules. The researchers observed that the tiny glass sphere sometimes, although rarely, does not behave as one would expect according to the second law: the nano-sphere effectively releases heat to the hotter surroundings rather than absorbing the heat. The theory derived by the researchers to analyze the experiment confirms the emerging picture on the limitations of the second law on the nanoscale.

Given the theoretical descriptions of the applications mentioned in the news release, it sounds like at least one of them might be a ‘quantum computing project’,

The experimental and theoretical framework presented by the international research team in the renowned scientific journal Nature Nanotechnology has a wide range of applications. Objects with sizes in the nanometer range, such as the molecular building blocks of living cells or nanotechnological devices, are continuously exposed to a random buffeting due to the thermal motion of the molecules around them. As miniaturization proceeds to smaller and smaller scales nanomachines will experience increasingly random conditions. Further studies will be carried out to illuminate the fundamental physics of nanoscale systems out of equilibrium. The planned research will be fundamental to help us understand how nanomachines perform under these fluctuating conditions.

Here’s a link to and a citation for the paper,

Dynamic Relaxation of a Levitated Nanoparticle from a Non-Equilibrium Steady State by Jan Gieseler, Romain Quidant, Christoph Dellago, and Lukas Novotny. Nature Nanotechnology AOP, February 28, 2014. DOI: 10.1038/NNANO.2014.40

The paper is behind a paywall but a free preview is available via ReadCube access.

Richard Van Duyne solves mystery of Renoir’s red with surface-enhanced Raman spectroscopy (SERS) and Canadian scientists uncover forgeries

The only things these two items have in common is that they are concerned with visual art. and with solving mysteries The first item concerns research by Richard Van Duyne into the nature of the red paint used in one of Renoir’s paintings. A February 14, 2014 news item on Azonano describes some of the art conservation work that Van Duyne’s (nanoish) technology has made possible along with details about this most recent work,

Scientists are using powerful analytical and imaging tools to study artworks from all ages, delving deep below the surface to reveal the process and materials used by some of the world’s greatest artists.

Northwestern University chemist Richard P. Van Duyne, in collaboration with conservation scientists at the Art Institute of Chicago, has been using a scientific method he discovered nearly four decades ago to investigate masterpieces by Pierre-Auguste Renoir, Winslow Homer and Mary Cassatt.

Van Duyne recently identified the chemical components of paint, now partially faded, used by Renoir in his oil painting “Madame Léon Clapisson.” Van Duyne discovered the artist used carmine lake, a brilliant but light-sensitive red pigment, on this colorful canvas. The scientific investigation is the cornerstone of a new exhibition at the Art Institute of Chicago.

The Art Institute of Chicago’s exhibition is called, Renoir’s True Colors: Science Solves a Mystery. being held from Feb. 12, 2014 – April 27, 2014. Here is an image of the Renoir painting in question and an image featuring the equipment being used,

Renoir-Madame-Leon-Clapisson.Art Institute of Chicago.

Renoir-Madame-Leon-Clapisson.Art Institute of Chicago.

Renoir and surface-enhanced Raman spectroscopy (SERS). Art Institute of Chicago

Renoir and surface-enhanced Raman spectroscopy (SERS). Art Institute of Chicago

The Feb. 13, 2014 Northwestern University news release (also on EurekAlert) by Megan Fellman, which originated the news item, gives a brief description of Van Duyne’s technique and its impact on conservation at the Art Institute of Chicago (Note: A link has been removed),

To see what the naked eye cannot see, Van Duyne used surface-enhanced Raman spectroscopy (SERS) to uncover details of Renoir’s paint. SERS, discovered by Van Duyne in 1977, is widely recognized as the most sensitive form of spectroscopy capable of identifying molecules.

Van Duyne and his colleagues’ detective work informed the production of a new digital visualization of the painting’s original colors by the Art Institute’s conservation department. The re-colorized reproduction and the original painting (presented in a case that offers 360-degree views) can be viewed side by side at the exhibition “Renoir’s True Colors: Science Solves a Mystery” through April 27 [2014] at the Art Institute.

I first wrote about Van Duyne’s technique in my wiki, The NanoTech Mysteries. From the Scientists get artful page (Note: A footnote was removed),

Richard Van Duyne, then a chemist at Northwestern University, developed the technique in 1977. Van Duyne’s technology, based on Raman spectroscopy which has been around since the 1920s, is called surface-enhanced Raman spectroscopy’ or SERS “[and] uses laser light and nanoparticles of precious metals to interact with molecules to show the chemical make-up of a particular dye.”

This next item is about forgery detection. A March 5, 2014 news release on EurekAlert describes the latest developments,

Gallery owners, private collectors, conservators, museums and art dealers face many problems in protecting and evaluating their collections such as determining origin, authenticity and discovery of forgery, as well as conservation issues. Today these problems are more accurately addressed through the application of modern, non-destructive, “hi-tech” techniques.

Dmitry Gavrilov, a PhD student in the Department of Physics at the University of Windsor (Windsor, Canada), along with Dr. Roman Gr. Maev, the Department of Physics Professor at the University of Windsor (Windsor, Canada) and Professor Dr. Darryl Almond of the University of Bath (Bath, UK) have been busy applying modern techniques to this age-old field. Infrared imaging, thermography, spectroscopy, UV fluorescence analysis, and acoustic microscopy are among the innovative approaches they are using to conduct pre-restoration analysis of works of art. Some fascinating results from their applications are published today in the Canadian Journal of Physics.

Since the early 1900s, using infrared imaging in various wave bands, scientists have been able to see what parts of artworks have been retouched or altered and sometimes even reveal the artist’s original sketches beneath layers of the paint. Thermography is a relatively new approach in art analysis that allows for deep subsurface investigation to find defects and past reparations. To a conservator these new methods are key in saving priceless works from further damage.

Gavrilov explains, “We applied new approaches in processing thermographic data, materials spectra data, and also the technique referred to as craquelure pattern analysis. The latter is based on advanced morphological processing of images of surface cracks. These cracks, caused by a number of factors such as structure of canvas, paints and binders used, can uncover important clues on the origins of a painting.”

“Air-coupled acoustic imaging and acoustic microscopy are other innovative approaches which have been developed and introduced into art analysis by our team under supervision of Dr. Roman Gr. Maev. The technique has proven to be extremely sensitive to small layer detachments and allows for the detection of early stages of degradation. It is based on the same principles as medical and industrial ultrasound, namely, the sending a sound wave to the sample and receiving it back. ”

Spectroscopy is a technique that has been useful in the fight against art fraud. It can determine chemical composition of pigments and binders, which is essential information in the hands of an art specialist in revealing fakes. As described in the paper, “…according to the FBI, the value of art fraud, forgery and theft is up to $6 billion per year, which makes it the third most lucrative crime in the world after drug trafficking and the illegal weapons trade.”

One might wonder how these modern applications can be safe for delicate works of art when even flash photography is banned in art galleries. The authors discuss this and other safety concerns, describing both historic and modern-day implications of flash bulbs and exhibit illumination and scientific methods. As the paper concludes, the authors suggest that we can expect that the number of “hi-tech” techniques will only increase. In the future, art experts will likely have a variety of tools to help them solve many of the mysteries hiding beneath the layers.

Here’s a link to and a citation for the paper,

A review of imaging methods in analysis of works of art: Thermographic imaging method in art analysis by D. Gavrilov, R.Gr. Maev, and D.P. Almond. Canadian Journal of Physics, 10.1139/cjp-2013-0128

This paper is open access.

ARPICO offers scholarship for Canadian grad. students and young postdocs at Italy’s School on Neutron Scattering (SoNS)

ARPICO (Society of Italian Researchers and Professionals in Western Canada) is offering a scholarship (deadline Mar. 31, 2014) for Canadian students according to its Feb. 14, 2014 announcement,

ARPICO is pleased to announce the 2014 ARPICO Scholarship to attend the 12th School on Neutron Scattering Francesco Paolo Ricci:

http://www.sonsfpricci.org/
Erice (Italy) from 30 April to 9 May 2014

ARPICO invites graduate students and post-doctoral researchers
at Canadian Universities and Laboratories to apply.

How to apply:

* Graduate students and post-doctoral researchers at Canadian
Universities/Laboratories are eligible
* Please, send a cover letter and your CV to [email protected] (.pdf format)

Deadline for application: March 31st, 2014

Scholarship covers for return-airfare from home institution to Italy,
school registration fee, lodging, and meals. The winner will be notified
by email by April 3rd, 2014.

For more information, please contact us at [email protected]

For anyone curious about Erice’s location in Italy, that would be the west coast of Sicily,

Erice (Vagabonda, May 2008) [downloaded from http://www.tripadvisor.ca/Tourism-g194757-Erice_Province_of_Trapani_Sicily-Vacations.html#17970260]

Erice (Vagabonda, May 2008) [downloaded from http://www.tripadvisor.ca/Tourism-g194757-Erice_Province_of_Trapani_Sicily-Vacations.html#17970260]

Good luck!