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Tag archives: particle physics

A look back at peer-review week and particle physicists say hello to Hello Kitty

By Matin Durrani

Today marks the end of Peer Review Week  – a “global event celebrating the essential role that peer review plays in maintaining scientific quality”. The event brought together “individuals, institutions and organizations committed to sharing the central message that good peer review, whatever shape or form it might take, is critical to scholarly communications”.

It’s probably fair to say that Peer Review Week – now in its second year – didn’t quite have the media profile of, say, London Fashion Week, but then you have to start somewhere. And celebrating peer review seems a worthy and worthwhile thing to do. I bet even Rio de Janeiro’s Restaurant Week started out small. (more…)

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A horrific nightmare scenario at CERN, surfer wins SUSY bet, and meet the father of the Super Soaker

Surf's up: Garrett Lisi when he is not winning bets with Nobel laureates (Courtesy: CC BY-SA 3.0/Cjean42)

Surf’s up: Garrett Lisi when he is not winning bets with Nobel laureates. (CC BY-SA 3.0/Cjean42)

By Hamish Johnston

The “nightmare scenario” of particle physics has a new meaning thanks to a bizarre video that appears to have been made by some scientists at CERN. The video seems to have been filmed at night at CERN’s main campus in Geneva and depicts an occult ceremony in which a woman is stabbed. While the video appears to be a spoof and there is no indication that anyone was actually harmed in its making, CERN officials are rightly concerned that such violent scenes were filmed on their premises. “CERN does not condone this type of spoof, which can give rise to misunderstandings about the scientific nature of our work,” a spokesperson told Agence France-Presse.

(more…)

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An animated history of physics, messing around with methane and Vangelis on space

 

By Hamish Johnston

Topping this week’s Red Folder is an “Animated history of physics” narrated by the Irish comedian and science enthusiast Dara O Briain. Running from Galileo to Einstein’s general theory of relatively – and giving very short shrift to quantum mechanics – it’s more of a selected history. You can enjoy the animations and O Briain’s soothing brogue in the video above.

O Briain often teams up with the particle physicist and media celebrity Brian Cox, who is also in the news recently for teaching children in London how to ignite potentially explosive gas. Before you call social services, it was all in the name of science education and part of Cox’s visit to St. Paul’s Way Trust School. Cox had been invited to the school’s summer science school and obliged by leading an experiment into the properties of methane. “There is no shortage of enthusiasm for students and young people when you talk about science and engineering,” Cox told the Reuters news agency.

(more…)

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In flight around the world’s brightest laser and the inverse Cheerio effect

 

By Tushna Commissariat

If you have never been one of the lucky few to have wandered the tunnels of a particle accelerator, but have always wondered what lies within, take a look at the video above. The European X-ray Free Electron Laser (European XFEL) – which is currently under construction in Germany and will come online next year – will provide ultrashort (27,000 X-ray flashes per second) and ultrabright X-ray laser flashes that are needed to study chemical reactions in situ or to study extreme states of matter (you can read more about the kind of research that will be done there in the September issue of Physics World magazine). The XFEL tunnel is 3.4 km long and you can zoom across all of it in the 5 minute long video. I particularly enjoyed watching particular locations where engineers could be seen carrying out tests, as well as watching folks on bicycles wobble out of the camera’s way.

On a slightly related note, if, like me, you occasionally get a bit muddled when it comes to certain details of different particle accelerators – for example which came first, the synchrotron or the cyclotron – take a look at this excellent “primer” over at Symmetry magazine.

(more…)

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China eyes new high-energy collider

Matin Durrani outside the Institute of High Energy Physics in Beijing on Sunday 12 June 2016

Matin Durrani outside the Institute of High Energy Physics in Beijing before interviewing Xinchou Lou.

By Matin Durrani in Beijing, China

I had just landed in Beijing this morning when I saw an e-mail from my colleague Mingfang Lu waiting for me on my phone. Mingfang, who’s editor-in-chief at the Beijing office of the Institute of Physics, which publishes Physics World, has been helping me to organize my itinerary for the next week as I gather material for our upcoming special report on physics in China. You may remember we published a Physics World special report on China in 2011 but so much has happened since then that we felt it’s easily time for another.

Mingfang’s e-mail was to say we would be off at 2.30 p.m. to interview Xinchou Lou, a particle physicist at the Institute of High Energy Physics, about the country’s ambitious plans for a “Higgs factory”. If built, this 240 GeV Circular Electron–Positron Collider (CEPC) would be a huge facility (50 km or possibly even 100 km in circumference) that will let physicists study the properties of the Higgs boson in detail. I say “if”, but knowing China’s frenetic progress in physics, it will almost certainly be a case of “when”.

(more…)

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Fractals and infinite curves, sonified data and farewell to Sir Tom Kibble

By Tushna Commissariat

Fractals have always fascinated me and I am sure it’s the same for many of you. What I find most intriguing about them is how the relatively simple base pattern, or “seed”, quickly scales up to form the intricate designs we see in a snowflake or a coastline. In the video above, mathematician and animator Grant Sanderson has created a montage of “space filling curves” – theoretically speaking, such curves can endlessly expand without every crossing its own path to fill an infinite space. Following on from these curves, Sanderson shows you just how a simple seed pattern grows into a fractal and also describes how small changes to a seed property – such as an angle in a V – can alter the final image. The above video follows from a previous one Sanderson created on “Hilbert’s curve, and the usefulness of infinite results in a finite world” so check them both out.

(more…)

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The most expensive object on Earth, publish or perish, and a physics Magna Carta

Gold coast: the Hinkley Point C power station will be build next to existing reactors in Somerset (Courtesy: CC BY-SA 2.0/ Richard Baker)

Gold coast: the Hinkley Point C power station will be built next to existing reactors in Somerset. (CC BY-SA 2.0 Richard Baker)

By Hamish Johnston

What will soon be the most expensive object on Earth? The answer, according to Greenpeace, is the Hinkley Point C nuclear power station that is slated for construction in south-west England. According to the BBC, the environmental group reckons the station will cost £24bn ($35bn) whereas EDF – the company that will build it – puts the construction cost at £18bn. In contrast, the Large Hadron Collider at CERN cost a mere £4bn. While the price tag on Hinkley Point C – which should produce 3.2 GW of electricity by 2024 – is eye watering, building a reactor on the cheap is not really an option.

Still, Hinkley Point C will not be the most expensive object ever built by humans. That honour goes to the International Space Station, which the BBC says cost nearly £78bn. There’s something comforting in knowing that the single highest expenditure ever has been on science – maybe civilization isn’t doomed after all.

(more…)

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Carried away by a well lit shadow

Simulation of a lead ion collision in ALICE

Simulation of a lead-ion collision in the ALICE detector. (Courtesy: CERN)

By James Dacey

As concept albums go, the latest release by Jake Hertzog can certainly be stacked at the intellectual end of your record collection. This week, the US jazz-rock guitarist released his sixth studio album, entitled Well Lit Shadow – a suite of solo electric-guitar tracks inspired by images from the Large Hadron Collider (LHC) and other experiments at the CERN particle-physics lab. You can find details of how to purchase or stream the album on Hertzog’s website.

Now, I’m not the world’s biggest jazz aficionado but I gave the album a listen and it’s far more accessible than the concept might suggest. Hertzog’s musicianship shines through and bright walking riffs on tracks such as “Star Drops” and “Traces of You” evoke images of devoted researchers working through vast amounts of data in pursuit of knowledge. According to Hertzog’s website, some of the pieces are very literal attempts to depict the chaos and beauty of subatomic-particle collisions, while other tracks are more abstract meditations on the deeper meaning of these experiments. The album’s title track is described as “a musical poem dedicated to the philosophical implications of this science”.

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X-ray visions of the past, undead physics, stargazing cruises and more

 

By Tushna Commissariat

Peering into a small 17th century metallic box, without damaging its contents, is no mean feat. But thanks to the use of synchrotron radiation, scientists at the European Synchrotron Radiation Facility (ESRF) in Grenoble were able to “see” inside one, using a technique known as synchrotron X-ray phase contrast micro-tomography. They were also able to create a 3D reconstruction of clay medals concealed within the very fragile and badly oxidized box, which was discovered on the archaeological site of the Saint-Laurent church, and is now at the archaeological museum of Grenoble (MAG). Take a look at the video above to see what the box held. You can also learn more about the researcher’s tomography technique in an article of ours.

Tomorrow is Halloween, so we hope you have your physics-themed pumpkins carved and out on your doorsteps. For some spooky reading this week, take a look at Davide Castelvecchi‘s “Zombie physics: 6 baffling results that just won’t die” story over on the Nature News website. In it, he lists six “undead” results – things that physicists just can’t seem to prove or disprove – including long-running disagreements over certain dark-matter results, hemispheric inconsistencies and spinning protons. Let us know what you think are some of the most undead physics results that should be laid to rest, in the comments below. And while you are at it, make sure to look at today’s creepy edition of Fermilab Today to read about the rise of the zombie accelerator and the “The cult of the Tev.”

(more…)

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Can physics reveal the secrets of Egypt’s pyramids?

By James Dacey

“Just because a mystery is 4500 years old doesn’t mean it can’t be solved.” That is the tagline of a major new project to uncover the secrets of Egypt’s pyramids without damaging a single stone.

Map of locations of the pyramids in the Scan Pyramids project

Study locations. (Courtesy: Scan Pyramids)

Scan Pyramids – launched by the Egyptian Ministry of Antiquities – will deploy an arsenal of non-invasive technologies to probe the structure of four pyramids from Egypt’s Fourth Dynasty (from 2575 BC to 2465 BC). On the Giza plateau, about 20 km south-west of Cairo, it will study the Pyramid of Khafre, along with the Pyramid of Khufu, aka the “Great Pyramid of Giza”, the oldest of the Seven Wonders of the Ancient World. Meanwhile, on the site of Dahshur, around 40 km south of the Egyptian capital, it will investigate the North and South pyramids. (Click to expand the map.)

Despite their global fame and familiarity, these ancient monuments still hold many mysteries. Chief among them is the question of how the ancient Egyptians managed to build these huge edifices. The Great Pyramid of Giza was originally 150 m tall and weighed 5 million tonnes, yet it was constructed in just 25 years. Egyptologists also believe that these pyramids could be concealing hidden chambers, which could house tombs and secret treasures.

(more…)

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