Carbon Dioxide 'May Improve Taste Of Champagne'

It's all in the fizz-sensing cells found in the tongue Photo: GETTY

From The Telegraph:

Carbon dioxide in champagne bubbles may enhance the taste of the drink, scientists revealed today.

A team headed by Charles Zuker, a neuroscientist at Columbia University, found that taste-receptor cells in the tongue respond to carbon dioxide (CO2), the gas that gives sparkling drinks their fizz.

The work showed for the first time that the tongue's fizz-sensing cells are the same taste-receptor cells that detect sourness.

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Seamlessly Melding Man And Machine

Image: Living interface: Muscle cells (shown here) are grown on a biological scaffold. Severed nerves remaining from the lost limb connect to the muscle cells in the interface, which transmits electrical signals that can be used to control the artificial arm. Credit: Paul Cederna

From Technology Review:

Tiny implants that connect to nerve cells could make it easier to control prosthetic limbs.

A novel implant seeded with muscle cells could better integrate prosthetic limbs with the body, allowing amputees greater control over robotic appendages. The construct, developed at the University of Michigan, consists of tiny cups, made from an electrically conductive polymer, that fit on nerve endings and attract the severed nerves. Electrical signals coming from the nerve can then be translated and used to move the limb.

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Throwable Robot And Remote-Controlled Mini-Helicopter Unveiled As Latest Battlefield Surveillance Technology

Eye in the sky: The lightweight helicopter has four cameras and can hover over enemy positions giving the operator real-time intelligence

From The Daily Mail:

Soldiers on the battlefield could soon benefit from new state-of-the-art surveillance equipment that can remotely pinpoint snipers, ambushes and explosive devices.

A throwable wheeled robot and a remote-controlled helicopter were both unveiled at a demonstration at the Defence and Equipment Support at Abbey Wood, near Bristol.

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New Israeli Battery Provides Thousands Of Hours Of Power

Photo: Prof. Yair Ein-Eli in his Technion lab, where he invented a battery that is potentially as eco-friendly as sand. Photo: Technion

From Jerusalem Post:

A new kind of portable electrochemical battery that can produce thousands of hours of power - and soon replace the expensive regular or rechargeable batteries in hearing aids and sensors and eventually in cellphones, laptop computers and even electric cars - has been developed at Haifa's Technion-Israel Institute of Technology.

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'Magnetricity' Observed And Measured For First Time

The magnetic equivalent of electricity in a 'spin ice' material: atom sized north and south poles in spin ice drift in opposite directions when a magnetic field is applied. (Credit: UCL/LCN)

From Science Daily:

Science Daily (Oct. 15, 2009) — A magnetic charge can behave and interact just like an electric charge in some materials, according to new research led by the London Centre for Nanotechnology (LCN).

The findings could lead to a reassessment of current magnetism theories, as well as significant technological advances.

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Study: Tingle of Carbonation Is Tasty, Too

From Live Science:

Fizzy beverages don't just tickle the tongue. They also rev up taste buds that can detect the drink's bubble-inducing carbon dioxide.

Though this discovery was made in mice, researchers say a rodent's sense of taste is similar to ours.

When a person, or mouse, devours a snack or downs a beverage, taste receptor cells on the tongue (which are clustered into taste buds) detect certain molecules in that food or drink. The receptor cells then send a message to the part of the brain involved in tasting.

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A Swim Through The Ocean's Future

As ocean water becomes more acidic, corals and shellfish must spend more energy to make their calcium carbonate shells. Photos courtesy of NOAA Pacific Islands Fisheries Science Center Coral Reef Ecosystem Division, Photo by Benjamin Richards

From The Smithsonian:

Can a remote, geologically weird island in the South Pacific forecast the fate of coral reefs?

I drop the dinghy’s anchor below the red-streaked cliffs of Maug. The uninhabited island group is among the most remote of the Mariana Islands, which are territories of the United States in the Western Pacific. Maug's three steep, parentheses-shaped islands are the top of an underwater volcano.

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Mystery Space "Ribbon" Found at Solar System's Edge

From National Geographic:

In a discovery that took astronomers by surprise, the first full-sky map of the solar system's edge—more than 9 billion miles (15 billion kilometers) away—has revealed a bright "ribbon" of atoms called ENAs.

The solar system is surrounded by a protective "bubble" called the heliosphere.

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Tiny Moon Feeds Largest Ring Around Saturn

This artist's illustration shows a nearly invisible ring around Saturn – the largest of the giant planet's many rings. It was discovered by NASA's Spitzer Space Telescope. Credit: NASA/JPL-Caltech/Keck

From The Cosmos:

PARIS: Stunned astronomers have discovered a new mega-ring around Saturn and believe its genesis is a small, distant moon.

Phoebe, a Saturnian satellite measuring only 214 km across, probably provides the record-breaking tenuous circle of dusty and icy debris, they report today in the British journal Nature.

The largest ring identified so far in the Solar System, the circle starts about six million km from Saturn and extends outwardly by another 12 million km, within the orbit of Phoebe.

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Banana Marks Seed Bank Milestone

From BBC:

An international seed bank has reached its target of collecting 10% of the world's wild plants, with seeds of a pink banana among its latest entries.

The wild banana, Musa itinerans, is a favourite of wild Asian elephants.

Seeds from the plant, which is under threat from agriculture, join 1.7 billion already stored by Kew's Millennium Seed Bank partnership.

The project has been described as an "insurance strategy" against future biodiversity losses.

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Another Century Of Oil? Getting More From Current Reserves

LANCE IVERSEN Corbis

From Scientific American:

Amid warnings of a possible "peak oil," advanced technologies offer ways to extract every last possible drop.

On fourteen dry, flat square miles of California’s Central Valley, more than 8,000 horsehead pumps—as old-fashioned oilmen call them—slowly rise and fall as they suck oil from underground. Glittering pipelines crossing the whole area suggest that the place is not merely a relic of the past. But even to an expert’s eyes, Kern River Oil Field betrays no hint of the technological miracles that have enabled it to survive decades of dire predictions.

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How Can We Tell If a Country Is Making Nuclear Power Or Nuclear Weapons?

Bombs or Power?: Centrifuges are usually arranged in a triangular cascade; the layout tips inspectors to its purpose. Weapons require heavily enriched uranium, so the triangle is long and narrow; power takes more fuel, so the cascade is short and fat. McKibillo

From Popular Science:

It's all about enrichment.

Just about everyone insists that Iran’s nuclear program is aimed at building weapons. Iran claims it only wants nuclear power. So how do weapons inspectors get at the truth? They study the country’s supply and treatment of uranium, one of the most abundant nuclear materials on the planet.

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Building The World's Most Powerful Laser

Photo: Power up: This laser can deliver a 200-joule pulse of light lasting just 100 femtoseconds. The cables at left pump power to green flash lamps that pump the laser. Credit: Texas Petawatt Laser Project

From Technology Review:

New lasers will be key to making fusion energy and proton therapy practical.

This March, researchers at the National Ignition Facility demonstrated a 1.1 megajoule laser designed to ignite nuclear fusion reactions by 2010. But the facility's technology, which is housed at the Lawrence Livermore National Laboratory in California, cannot yet generate enough energy to drive a practical power plant. So, even as physicists look forward to next year's demonstration, they're working on even more powerful lasers that could make possible a method for a kind of laser-induced fusion called fast ignition.

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First Black Hole For Light Created On Earth

The full-wave simulation result when light is incident to the black hole
(Image: Qiang Cheng and Tie Jun Cui)

From New Scientist:

An electromagnetic "black holeMovie Camera" that sucks in surrounding light has been built for the first time.

The device, which works at microwave frequencies, may soon be extended to trap visible light, leading to an entirely new way of harvesting solar energy to generate electricity.

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Alien Giant Snakes Threaten To Invade Up To 1/3 of U.S.

Researchers place a radio transmitter inside a 16-foot (5-meter) Burmese python in Florida's Everglades National Park in an undated photo. Native to Asia, the species is already established in the wild in Florida and is taking a toll on Floridian animals. A similar fate could await ecosystems in a wide swath of the U.S. if other non-native giant snake species are allowed to flourish in the country, an October 2009 study says. Photograph courtesy Lori Oberhofer, National Park Service

From National Geographic:

Nine species of giant snakes—none of them native to North America and all popular pets among reptile lovers—could wreak havoc on U.S. ecosystems if the snakes become established in the wild, according to a new study by the U.S. Geological Survey (USGS) .

Two of the giant snakes are already at home in Florida. One of them, the Burmese python, has the potential to infiltrate the entire lower third of the U.S., the study says.

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Wiser Wires -- Smart grids

From The Economist:

Information technology can make electricity grids less wasteful and much greener. Businesses have lots of ideas and governments are keen, but obstacles remain

WHAT was the greatest engineering achievement of the 20th century? The motor car, perhaps, or the computer? In 2000 America’s National Academy of Engineering gave a different answer: “the vast networks of electrification”. These, the academy concluded, made most of the century’s other advances possible.

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Youth 'Cannot Live' Without Web

From The BBC:

A survey of 16 to 24 year olds has found that 75% of them feel they "couldn't live" without the internet.

The report, published by online charity YouthNet, also found that four out of five young people used the web to look for advice.

About one third added that they felt no need to talk to a person face to face about their problems because of the resources available online.

The findings were unveiled at the Houses of Parliament on Wednesday.

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My Comment: I am 50, and I cannot live without the web.

The Other Peak Oil: Demand From Developed World Falling

OIL HALT: Demand for oil in developed countries could be passed its prime.
WIKIMEDIA COMMONS/FLCELLOGUY

From Scientific American:

Oil demand in industrialized countries peaked in 2005 and will not reach that high again, a new report predicts.

Demand for oil in developed nations peaked in 2005, and changing demographics and improved motor-vehicle efficiency guarantee that it won't hit those heights again, IHS Cambridge Energy Research Associates says in a new report.

Reduced petroleum demand in developed nations could make their economic growth less vulnerable to oil price shocks, the report states.

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Leaked Barnes & Noble e-Reader Is A Powerful Multitouch Hybrid

Barnes & Noble e-Reader

From Popular Science:

Take a Kindle, and put a multitouch screen where the keyboard and navigation buttons go, and you've got the Barnes & Noble e-reader.

We're still a week away from Barnes & Noble's big e-reader announcement, but we've know they've had something cooking for a while now. And today, our pals at Gizmodo hit the mother load: leaked shots of a forthcoming dual-screen device that is three-quarters e-ink and one-quarter (wait for it) color multitouch.

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Natural Gas Changes the Energy Map

Deep drilling: At Range Resources’ site in Washington County, PA, a specially designed rig is used to drill more than a thousand meters down and gradually turn 90° to follow the gas-rich shale deposit. The rig will drill half a dozen wells at the site. Beside it is a pond holding debris and mud from a well. Credit: Roy Ritchie

From Technology Review:

Vast amounts of the clean-burning fossil fuel have been discovered in shale deposits, setting off a gas rush. But how it will affect our energy use is still uncertain.

The first sign that there's something unusual about the flat black rocks strewn across the shore of Lake Erie comes when Gary Lash smashes two of them together. They break easily and fall into shards that give off the faint odor of hydrocarbons, similar to the smell of kerosene. But for Lash, a geologist and professor at nearby SUNY Fredonia, smashing the rocks is a simple trick designed to catch the attention of a visitor. The black outcroppings that protrude from the nearby bluff onto the narrow beach are what really interest him.

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