Tag archives: materials science
By Tushna Commissariat
Don’t tell the kids just yet, but becoming Spider-Man, even after being bitten by a radioactive spider, is looking less and less likely for us humans – we are just too big. The latest work, done by researchers at the University of Cambridge in the UK, has shown that gecko-sized is pretty much the largest you can be if you realistically want to scale up walls with adhesive pads. Any bigger, and most of your surface area would need to be covered in large sticky pads to pull off the gravity-defying walk. Indeed, the team estimates that roughly 40% of an average human being’s total body surface would need to be sticky – this means a whopping 80% of your front would be covered in adhesive pads.
By Hamish Johnston
This week’s Red Folder looks to the cosmos, starting with a spiffy new video from the European Space Agency. The slick presentation is a preview of some of the extra-terrestrial exploits that the agency has planned for 2016. This includes the landing of the Schiaparelli probe on the surface of Mars. This stationery lander will survey its Martian environs to find a suitable location to drop the ExoMars rover in 2018. The mission’s namesake is the Italian astronomer Giovanni Schiaparelli, who mapped the surface of Mars and was the first to use the term canali to describe the straight lines that were thought to exist on the surface of the planet.
It’s possible that someday humans will colonize Mars and this will involve building dwellings and other structures on the Red Planet. In preparation, Lin Wan, Roman Wendner and Gianluca Cusatis at Northwestern University in the US have come up with a recipe for making concrete on Mars. The trio reckon that any successful colonization of the Red Planet will have to rely on local building materials because shipping stuff from Earth would be horrendously expensive.
By Susan Curtis
At a time when the UK steel industry is close to meltdown, it felt quite humbling to be standing inside a disused steelworks on the outskirts of Rotherham. In its heyday in the 1970s the colossal plant employed 3000 people and housed six electric arc furnaces that set new records for steel production. Since closing in 1993, the facility has forged a new identity as the Magna Science Adventure Centre, which offers visitors an insight into the steel-making process and its heritage in the area around Sheffield.
Recently, I was at Magna for the annual TRAM conference, which showcases the latest technology advances in the aerospace industry. Organized by the Advanced Manufacturing Research Centre (AMRC), one of the UK’s Catapult centres based at the University of Sheffield and supported by Boeing, TRAM highlights how aircraft makers and their suppliers are improving materials and manufacturing processes to reduce cost and enhance performance. But among the talk of powder metallurgy, high-performance machining and the factories of the future, a presentation by Nick English from the UK-based watchmaker Bremont highlighted manufacturing innovation at a much smaller scale.
By Matin Durrani
Whether it’s the shortest wavelength, the lightest particle, the highest pressure or the brightest beam, there’s something intrinsically appealing about pushing boundaries to break records and establish new limits of what’s physically possible. Reaching new extremes is healthy for science too, spurring researchers to outperform rivals in the quest for grants, kudos or new jobs.
The November 2015 issue of Physics World, which is now out, covers three frontier-busting research endeavours. We kick off by looking at a human-made extreme: the search for the blackest materials ever produced – a tale that’s had a dark side of its very own. Next, we examine how physics techniques are unravelling the secrets of tough lifeforms that exist in some of the most extreme environments on Earth. Finally, we go beyond Earth to a cosmic extreme: magnetars – a special kind of rotating neutron star that are the strongest magnets in the universe.
By James Dacey in Mexico
From pre-Hispanic archaeological treasures to the Modernist paintings of Frida Kahlo and Diego Rivera, Mexico is brimming with cultural artefacts. Yesterday I visited a centre at the National Autonomous University of Mexico (UNAM) that has developed techniques for investigating precious objects without damaging them.
By Margaret Harris
Materials scientist and first-time popular-science author Mark Miodownik was all smiles last night as his book Stuff Matters scooped one of the UK’s top non-fiction awards, the Royal Society Winton Prize for Science Books. The book, an engaging and often highly personal look at some of the everyday materials that make modern civilization possible, was the unanimous choice of the five-member judging panel, coming top in a strong shortlist that also included a history of general relativity, a memoir about cancer and an analysis of the role played by physicists in Nazi Germany.
Miodownik picked up his award – a rectangular prism that looked like glass but was, he informed us, actually made of acrylic – at the end of a ceremony in which he and four of the other shortlisted authors appeared on stage at the Royal Society’s London headquarters to read passages from their books. Earlier in the evening, there had been an audible buzz in the room as Miodownik read from the introduction of Stuff Matters, in which he describes how, as a teenager, he was slashed with a razor blade during an attempted mugging, and how he became obsessed with materials and their properties afterwards. (He is now a materials engineer at University College London.)
By Susan Curtis
This week, several of us from IOP Publishing have been visiting the north-east of Brazil. Our prime focus has been the annual meeting of the Brazilian Materials Research Society in João Pessoa, where we launched a new Science Impact report highlighting materials research in Brazil. But during the week I travelled to Natal with my colleague Sarah Andrieu to visit Alvaro Ferraz, director of the International Institute of Physics (IIP).
By James Dacey
Many academics believe that they have an idea in them that could lead to a nifty new technology – and make them some cash in the process. But there is a world of difference between discussing an idea in the departmental common room and actually launching a new product to fit into an unexploited niche in the market. One of the biggest challenges that start-up companies face is known as the valley of death, which we have illustrated for you here with this quirky animation.
The voice you hear is that of Stan Reiss, who works for the international venture capitalist firm Matrix Partners. He explains how the valley of death is a metaphor for the financial challenges faced by a spin-off company in the early stages of its development. In this phase, the firm may have a prototype for a product but it might not have the income or the capital to comfortably survive and grow. Often, the company simply runs out of money and falls by the wayside. “There’s a lot of dead bones and skeletons at the end of that valley,” says Reiss.
By Michael Banks in Rio de Janeiro, Brazil
As part of my road-trip round Brazil, I visited Inmetro – the Brazilian standards lab. Located around 50 km north of Rio de Janeiro, Inmetro certainly has the feeling of being well away from the hustle and bustle of one of Brazil’s major cities.
The first thing that you notice when you enter Inmetro’s vast campus is that the buildings have a unique architecture (see above). The bunker-like structures are built in such a way that they are protected from the Sun, which can deliver 40 °C temperatures in summer. (Thankfully, I am here in autumn, but the temperature is still a warm 30 °C.)
Inmetro’s campus was built about 40 years ago with the help of the PTB – the German standards lab. The buildings were also specially designed so that the labs are vibrationally separate from the offices. So, any wild jumping around at your desk won’t affect the sensitive measurements in the lab.
By Michael Banks in Belo Horizonte, Brazil
I’m writing this while on a week-long road trip across Brazil to gather information for a new report that IOP Publishing, which publishes Physics World, is producing for the Brazilian Materials Research Society.
While on my trip, I have visited a number of institutes that focus on materials research. But I also had the chance to talk a bit of policy when visiting FAPEMIG – the main state funder for research in Minas Gerais, which is the second most populous state in Brazil.