Monday, September 30, 2013

Phys.Org Newsletter Week 39

Dear Reader ,

Here is your customized Phys.org Newsletter for week 39:

Scientists create never-before-seen form of matter
Harvard and MIT scientists are challenging the conventional wisdom about light, and they didn't need to go to a galaxy far, far away to do it.

Fusion, anyone? Not quite yet, but researchers show just how close we've come
The dream of igniting a self-sustained fusion reaction with high yields of energy, a feat likened to creating a miniature star on Earth, is getting closer to becoming reality, according the authors of a new review article in the journal Physics of Plasmas.

Eagle vs. deer
A camera trap set out for endangered Siberian (Amur) tigers in the Russian Far East photographed something far more rare: a golden eagle capturing a young sika deer.

World record solar cell with 44.7% efficiency
German Fraunhofer Institute for Solar Energy Systems, Soitec, CEA-Leti and the Helmholtz Center Berlin announced today that they have achieved a new world record for the conversion of sunlight into electricity using a new solar cell structure with four solar subcells. Surpassing competition after only over three years of research, and entering the roadmap at world class level, a new record efficiency of 44.7% was measured at a concentration of 297 suns. This indicates that 44.7% of the solar spectrum's energy, from ultraviolet through to the infrared, is converted into electrical energy. This is a major step towards reducing further the costs of solar electricity and continues to pave the way to the 50% efficiency roadmap.

A first: Stanford engineers build computer using carbon nanotube technology
A team of Stanford engineers has built a basic computer using carbon nanotubes, a semiconductor material that has the potential to launch a new generation of electronic devices that run faster, while using less energy, than those made from silicon chips.

Mars rover Curiosity finds water in first sample of planet surface
The first scoop of soil analyzed by the analytical suite in the belly of NASA's Curiosity rover reveals that fine materials on the surface of the planet contain several percent water by weight. The results were published today in Science as one article in a five-paper special section on the Curiosity mission. Rensselaer Polytechnic Institute Dean of Science Laurie Leshin is the study's lead author.

'Accelerator on a chip' demonstrated
In an advance that could dramatically shrink particle accelerators for science and medicine, researchers used a laser to accelerate electrons at a rate 10 times higher than conventional technology in a nanostructured glass chip smaller than a grain of rice.

Understanding a new kind of magnetism
Using low-frequency laser pulses, a team of researchers has carried out the first measurements that reveal the detailed characteristics of a unique kind of magnetism found in a mineral called herbertsmithite.

Ivanpah solar plant in California starts energy feed to grid
The world's largest solar thermal plant began to feed energy into the power grid on Tuesday, considered a solar energy milestone, in a project scheduled to be fully operational by the end of the year. The system delivered its first kilowatts of power Tuesday to Pacific Gas & Electric in California, from one of three central-tower units, with the remaining two to be activated next. Power generated from Ivanpah's initial sync testing to PG&E is under a power purchase agreement for energy produced out of the plant's Unit 1 station. Power generated from the Unit 3 station is also for PG&E. Unit 2 is under an agreement with Southern California Edison. Proof-of-concept testing will also be conducted at Units 2 and 3 in the coming months.

Math explains history: Simulation accurately captures the evolution of ancient complex societies
The question of how human societies evolve from small groups to the huge, anonymous and complex societies of today has been answered mathematically, accurately matching the historical record on the emergence of complex states in the ancient world.

Voyager 1 magnetic data surprise intrigues researchers
(Phys.org) �A University of Alabama in Huntsville graduate student and a recent UAH doctoral graduate are exploring surprising data from Voyager 1's crossing of the heliopause into the interstellar medium of our galaxy.

Wind and rain belts to shift north as planet warms, research says
As humans continue to heat the planet, a northward shift of Earth's wind and rain belts could make a broad swath of regions drier, including the Middle East, American West and Amazonia, while making Monsoon Asia and equatorial Africa wetter, says a new study in Proceedings of the National Academy of Sciences.

Did autocells lead to life?
The origin of life on Earth is still a hotly-debated topic. There are many different theories on how life was kick-started, as well as various experiments underway attempting to understand the processes involved. For example, a reverse engineering approach can be used by stripping away cells until the simplest possible system is left. However, evolution has ultimately hampered our understanding of life's origins as it has washed away the traces of the first forms of life, making it impossible to retrace life's early steps. This means that even the simple systems left after the reverse engineering approach are still too complicated to bear a resemblance to the first forms of life.

Dating our galaxy's dormant volcano
(Phys.org) �A dormant volcano�a supermassive black hole�lies at the heart of our galaxy. Fresh evidence suggests that it last erupted two million years ago.

Carbon nanotube logic device operates on subnanowatt power
(Phys.org) �Researchers have demonstrated a new carbon nanotube (CNT)-based logic device that consumes just 0.1 nanowatts (nW) in its static ON and OFF states, representing the lowest reported value by 3 orders of magnitude for CNT-based CMOS logic devices. The device could serve as a building block for large-area, ultralow-power CNT logic circuits that can be used to realize a variety of nanoelectronics applications.

Adversaries, zombies and NIPCC climate pseudoscience
The warm start to Australian spring has been accompanied by a deluge of pseudoscience. Anti-vaccination campaigners andaliens made appearances, but the deluge was primarily climate pseudoscience in the Murdoch Press and talk radio.

Climate panel: Warming 'extremely likely' man-made (Update 3)
Scientists now believe it's "extremely likely" that human activity is the dominant cause of global warming, a long-term trend that is clear despite a recent plateau in the temperatures, an international climate panel said Friday.

Engineers develop a stretchable, foldable transparent electronic display (w/ Video)
(Phys.org) �Imagine an electronic display nearly as clear as a window, or a curtain that illuminates a room, or a smartphone screen that doubles in size, stretching like rubber. Now imagine all of these being made from the same material.

Study shows maths experts are 'made, not born'
(Medical Xpress)�A new study of the brain of a maths supremo supports Darwin's belief that intellectual excellence is largely due to "zeal and hard work" rather than inherent ability.

Fish fossil yields jaw-dropping data on Man's past
The ancestor of all creatures with jaws and a backbone was not a sleek, shark-like beast but a toothless, armoured fish, said a study Wednesday that rewrites Man's evolutionary history.


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