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Here is your customized Phys.org Newsletter for week 25:
More data storage? Here's how to fit 1,000 terabytes on a DVD
We live in a world where digital information is exploding. Some 90% of the world's data was generated in the past two years. The obvious question is: how can we store it all?
Particle accelerator that can fit on a tabletop opens new chapter for science research
Physicists at The University of Texas at Austin have built a tabletop particle accelerator that can generate energies and speeds previously reached only by major facilities that are hundreds of meters long and cost hundreds of millions of dollars to build.
Rethinking the universe: Groundbreaking theory proposed in 1997 suggests a 'multiverse'
Some top scientists are beginning to worry that a radical idea proposed in 1997 by three University of Delaware physicists may be right.
Two collider research teams find evidence of new particle Zc(3900)
(Phys.org) �Two research teams working independently at two different particle accelerators have found evidence of what appears to be a four-quark particle that has come to be called Zc(3900). Both teams are made up of a large number of researchers affiliated with institutions from around the world and both have published their findings in separate papers in the journal Physical Review Letters.
Harnessing the potential of quantum tunneling: Transistors without semiconductors
(Phys.org) �For decades, electronic devices have been getting smaller, and smaller, and smaller. It's now possible�even routine�to place millions of transistors on a single silicon chip.
New drug reverses loss of brain connections in Alzheimer's disease
The first experimental drug to boost brain synapses lost in Alzheimer's disease has been developed by researchers at Sanford-Burnham Medical Research Institute. The drug, called NitroMemantine, combines two FDA-approved medicines to stop the destructive cascade of changes in the brain that destroys the connections between neurons, leading to memory loss and cognitive decline.
Research says Mars had oxygen-rich atmosphere 4000 million years ago
Differences between Martian meteorites and rocks examined by a NASA rover can be explained if Mars had an oxygen-rich atmosphere 4000 million years ago�well before the rise of atmospheric oxygen on Earth 2500 million years ago.
Plants do sums to get through the night, researchers show
(Phys.org) �New research shows that to prevent starvation at night, plants perform accurate arithmetic division. The calculation allows them to use up their starch reserves at a constant rate so that they run out almost precisely at dawn.
Tesla to demo quick-swap electric car batteries
Tesla Motors said Thursday it would demonstrate a way to quickly recharge electric cars by swapping drained batteries for fresh power cells.
The hidden agenda of Obama's opposition
Is the US Tea Party movement a racial backlash against President Obama? A new study by Angie Maxwell from the University of Arkansas, and Wayne Parent from Louisiana State University, assesses whether racial attitudes are contributing to Tea Party membership, and if so, the exact nature of this racial prejudice. Their work is published online in Springer's journal, Race and Social Problems.
Study finds chemical behind cancer resistance in naked mole rats
Two researchers at the University of Rochester have discovered the chemical that makes naked mole rats cancer-proof. Their research paper will be published this week in the journal Nature.
Too green to be true? Researchers develop highly effective method for converting CO2 into methanol
Universit� Laval researchers have developed a highly effective method for converting CO2 into methanol, which can be used as a low-emissions fuel for vehicles. The team led by Professor Fr�d�ric-Georges Fontaine presents the details of this discovery in the latest issue of the Journal of the American Chemical Society.
Researchers discover way to allow 80 percent of sound to pass through walls
(Phys.org) �A team of researchers in Korea has discovered a way to allow sound to pass through walls almost as if they were not there at all. As the group describes in their paper published in the journal Physical Review Letters, the technique involves drilling very small holes in a wall and then tightly covering them with a thin sheet of plastic.
Scientists create way to see structures that store memories in living brain
Oscar Wilde called memory "the diary that we all carry about with us." Now a team of scientists has developed a way to see where and how that diary is written.
Surprising turns in magnetic thin films could lead to better data storage
A magnetic phenomenon newly discovered by MIT researchers could lead to much faster, denser and more energy-efficient chips for memory and computation.
Cheap, color, holographic video: Better holographic video displays
Today in the journal Nature, researchers at MIT's Media Lab report a new approach to generating holograms that could lead to color holographic-video displays that are much cheaper to manufacture than today's experimental, monochromatic displays. The same technique could also increase the resolution of conventional 2-D displays.
Uncovering quantum secret in photosynthesis
The efficient conversion of sunlight into useful energy is one of the challenges which stand in the way of meeting the world's increasing energy demand in a clean, sustainable way without relying on fossil fuels. Photosynthetic organisms, such as plants and some bacteria, have mastered this process: In less than a couple of trillionths of a second, 95 percent of the sunlight they absorb is whisked away to drive the metabolic reactions that provide them with energy. The efficiency of photovoltaic cells currently on the market is around 20 percent. What hidden mechanism does nature use to transfer energy so efficiently? Various research groups around the world have shown that this highly efficient energy transport is connected to a quantum-mechanical phenomenon. However, until now, no one had directly observed the possible impacts of such a quantum transport mechanism at work at room temperature.
Super-hurricane-force winds on Venus are getting stronger
(Phys.org) �As the closest planet to Earth, Venus is a relatively easy object to observe. However, many mysteries remain, not least the super-rotation of Venus' atmosphere, which enables high altitude winds to circle the planet in only four days. Now images of cloud features sent back by ESA's Venus Express orbiter have revealed that these remarkably rapid winds are becoming even faster.
World's largest all-solar-powered boat shines in NYC
The world's largest fully solar-powered boat, "Turanor PlanetSolar," docked in New York on Tuesday during a mission to study the effects of climate change on the Gulf Stream current.
A robot that runs like a cat (w/ Video)
Thanks to its legs, whose design faithfully reproduces feline morphology, EPFL's 4-legged 'cheetah-cub robot' has the same advantages as its model: It is small, light and fast.
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