Rogue Satellites To Be Cleared From Earth's Orbit By German Robots

From The Guardian:

German-built robots are to be sent into Earth's orbit to repair 'dead satellites' or push them into outer space.

Robots that rescue failing satellites and push "dead" ones into outer space should be ready in four years, it has emerged. Experts described the development by German scientists as a crucial step in preventing a disaster in the Earth's crowded orbit.

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Pictured: The Independence Day-Shaped Cloud Hovering In The Skies Over Moscow

Luminous: The pale halo-shaped cloud was hovering over Moscow on Wednesday

From The Daily Mail:

In what could have been a scene from the film Independence Day, a luminous ring-shaped cloud could be seen hovering over the city of Moscow last week.

The pale gold 'halo' could be seen above the Russian capital city's Western District on Wednesday, and was captured on film by stunned Muscovites.

Meteorologists rejected any theories of the supernatural however, calling it an optical effect.

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Building A Second Sun: Take $10 Billion, Add Coconuts

From New Scientist:

THE balmy south of France has always been a magnet for sun worshippers. So it is perhaps fitting that here, not far from the Côte d'Azur, an international team of researchers is building a machine to recreate the sun. It will take tens of thousands of tonnes of steel and concrete, plus a whole host of more unusual materials: beryllium, niobium, titanium and tungsten; frigid liquid nitrogen and helium. Oh, and a supply of burnt coconuts.

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Downed Facebook Accounts Still Haven't Returned

From CNET:

Something is really odd here.

As a reporter covering Facebook, I do get the occasional cranky complaints from members who, for one reason or another, are experiencing errors when they try to access their accounts. But it's never been anything like the past week, with a steady stream of e-mails continuing to come in from Facebook members who say they remain shut out of their accounts--despite assurance from Facebook that profiles have not been deleted and that the company is working on the problem.

"This is now seven days and counting," an e-mail sent on Saturday morning read. "It's beyond ridiculous and extremely frustrating."

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Tiny 'Nuclear Batteries' Unveiled

From The BBC:

Researchers have demonstrated a penny-sized "nuclear battery" that produces energy from the decay of radioisotopes.

As radioactive substances decay, they release charged particles that when properly harvested can create an electrical current.

Nuclear batteries have been in use for military and aerospace applications, but are typically far larger.

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Montreal Underground -- A Look Back In History

The Pointe-à-Callière Museum

From Archaeology Magazine:

This past August I traveled to Montreal for Archaeo (Archaeology) Month, which is celebrated throughout the province of Quebec. On my first day in Montreal, I met with Louise Pothier, project manager for the Montreal Museum of Archaeology and History. The museum, better known as Pointe-à-Callière and affectionately referred to as the PAC Musée, is located in Old Montreal on the very spot of the city's birthplace on May 17, 1642, and opened exactly 350 years later on May 17, 1992.

PAC Musée is situated on a point of land where the Little Saint Pierre River once ran into the St. Lawrence River. Chevalier Louis Hector de Callière, the third governor of Montreal, built a home on the site in 1688. The museum is situated atop remains of the first French settlement here, Fort Ville Marie (1642-1674), and its permanent exhibition is titled, "Where Montreal was Born."

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My Comment: This probably does not interest 99% of the readership for this blog .... but as a Montrealer who visited this museum today .... it is so cool.

New Technology Detects Chemical Weapons In Seconds

Preparation of a solution of sensor nanoparticles. (Credit: Image courtesy of Engineering and Physical Sciences Research Council)

From Science Daily:

Scientists at Queen's University Belfast are developing new sensors to detect chemical agents and illegal drugs which will help in the fight against the threat of terrorist attacks.

The devices will use special gel pads to 'swipe' an individual or crime scene to gather a sample which is then analysed by a scanning instrument that can detect the presence of chemicals within seconds. This will allow better, faster decisions to be made in response to terrorist threats.

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Birth Rates Rise in Wealthiest Nations

From Live Science:

For decades, demographers have reported that the more developed a country is in terms of wealth, health, and living standards, the lower its citizens' fertility rate — so much so that most rich European and North American nations cannot sustain their populations without immigration. (The United States is a notable exception.) Eco-activists tend to welcome such news, foreseeing an end to overpopulation. But many economists and sociologists worry, because low fertility rates entail population aging, which often brings on socio-economic problems.

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Biggest News You’ve Never Heard: Earth Isn’t Warming

From Christian Science Monitor:

How do you reconcile the early snow in Minneapolis, ski resorts already opening in Nevada, and that August chill in North Dakota with expert warnings about a warming climate?

You don’t. Why? The Earth isn’t warming right now, is why. It may even be cooling down somewhat.

Five major climate centers around the world agree that average global temperatures have not risen in the past 11 years, according to the BBC. In fact, in eight of those years, global average temperatures dipped a tad.

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Laliberte Still Has His Head In The Stars

Canadian billionaire Guy Laliberte smiles shortly after his landing with the members of the mission to the International space station, Russian cosmonaut Gennady Padalka and NASA astronaut Michael Barratt, not seen, near the town of Arkalyk, Kazakhstan. (THE ASSOCIATED PRESS/Yuri Kochetkov, Pool)

From CNews/Canadian Press:

MONTREAL - Back from his trip in space, Circus magnate Guy Laliberte said Sunday he'll soon be ready to follow up on the outcome of the two-hour extravaganza of poetry, science and dance that he orchestrated from orbit.

"As you know, I was on a personal mission which was to create an event to talk about the situation of water in the world," he said in an interview broadcast Sunday on NASA TV.

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LHC Test Could Lead to Hyperdrive Space Propulsion (Well, In Theory)

Muon Chambers The Atlas Experiment

From Popular Science:

Add one more thing to the list of mysteries, theories, and unsubstantiated ideas that will be confirmed/denied/debunked if CERN ever gets the Large Hadron Collider up and running: hyperdrive spacecraft propulsion.

In 1924, German mathematician David Hilbert published a paper noting a pretty amazing side effect to Einstein's relativity: a relativistic particle moving faster than about half the speed of light should be repelled by a stationary mass (or at least it would appear to be repelled, to an inertial observer watching from afar).

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The Era of Nanoparticle Drugs Begins With Erection Cream

Photo: Nanoparticles filled with nitric oxide
Courtesy of Albert Einstein College of Medicine

From Discover Magazine:

Tiny drug-carrying balls of sugar are delivering medicine in novel—and very useful—ways.

Over a thousand years ago, Mesopotamian artisans stumbled on a new way to add a special sheen to their ceramics: using microscopic pieces of metal. This "luster" was the first known use of nanoparticles—tiny objects that are less than 100 nanometers long in all three dimensions. In modern times, nanoparticles have emerged as a useful tool in medicine, with uses from providing the active ingredient in sunscreen (nano-scale particles of titanium dioxide), to stimulating blood vessel growth as an aid to healing, to delivering the key ingredients in artificial hearts (nanocrystalline zirconium oxide) and brain imaging (magnetic nanoparticles).

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7% Of U.S. H1N1 Patients in ICUs Died: Study

An electron microscope image shows an A H1N1 swine flu virus culture obtained from a California patient. (C. S. Goldsmith and A. Balish/Centers for Disease Control/Reuters)

From CBC:

One quarter of Americans sick enough to be admitted to hospital with swine flu last spring wound up needing intensive care and seven per cent of them died, the first study of the early months of the global epidemic suggests. That's a little higher than with ordinary seasonal flu, several experts said.

What is striking and unusual is that children and teens accounted for nearly half of the hospitalization cases, including many who were previously healthy. The study did not give a breakdown of deaths by age.

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Rapidly Erupting Volcanoes Pose Major Risk

A huge cloud of ash spewed from the Chaiten volcano, some 1,300 km south of Santiago when it erupted in 2008. Credit: AFP

From Cosmos:

PARIS: Magma from a Chilean volcano shot through Earth's crust at around a metre per second, a speed highlighting the perils from so-called rhyolitic volcanoes, says a new study.

Volcanoes in this category provide some of Earth's most explosive events. They are characterised by a dome of hardened magma which covers their central vent and can blow with catastrophic force, often with scant warning.

They include Vesuvius, Krakatoa and Mount St. Helens - names that have gone down in history for inflicting loss of life and massive damage.

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Timing the Singularity

From The Futurist:

The Singularity. The event when the rate of technological change becomes human-surpassing, just as the advent of human civilization a few millenia ago surpassed the comprehension of non-human creatures. So when will this event happen?

There is a great deal of speculation on the 'what' of the Singularity, whether it will create a utopia for humans, cause the extinction of humans, or some outcome in between. Versions of optimism (Star Trek) and pessimism (The Matrix, Terminator) all become fashionable at some point. No one can predict this reliably, because the very definition of the singularity itself precludes such prediction. Given the accelerating nature of technological change, it is just as hard to predict the world of 2050 from 2009, as it would have been to predict 2009 from, say, 1200 AD. So our topic today is not going to be about the 'what', but rather the 'when' of the Singularity.

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Range Of Peak Oil Dates All Too Soon To Prepare?

From Future Pundit:

The range of dates over which Peak Oil is expected to happen does not provide enough time for governments to prepare policies mitigate the impacts.

The debate over exactly when we will reach "peak oil" is irrelevant. No matter what new oil fields we discover, global oil production will start declining in 2030 at the very latest.

That's the conclusion of the most comprehensive report to date on global oil production, published on 7 October by the UK Energy Research Centre.

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How To Get More Bicyclists On The Road

CYCLE TRACK, here along New York City's Ninth Avenue, keeps bicyclists physically separated from motor vehicle traffic. Such designs make riding safer and could boost the number of women cyclists. Monica Bradley

From Scientific American:

To boost urban bicycling, figure out what women want.

Getting people out of cars and onto bicycles, a much more sustainable form of transportation, has long vexed environmentally conscious city planners. Although bike lanes painted on streets and automobile-free “greenways” have increased ridership over the past few years, the share of people relying on bikes for transportation is still less than 2 percent, based on various studies. An emerging body of research suggests that a superior strategy to increase pedal pushing could be had by asking the perennial question: What do women want?

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U.S. Must Focus On Protecting Critical Computer Networks From Cyber Attack, Experts Urge

From Science Daily:

Science Daily (Oct. 9, 2009) — Because it will be difficult to prevent cyber attacks on critical civilian and military computer networks by threatening to punish attackers, the United States must focus its efforts on defending these networks from cyber attack, according to a new RAND Corporation study.

The study finds that the United States and other nations that rely on externally accessible computer networks—such as ones used for electric power, telephone service, banking, and military command and control—as a foundation for their military and economic power are subject to cyber attack.

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More Than a Storm Chaser

Texas Tech graduate student Sarah Dillingham checks for the green light on a StickNet deployed for a squall line that passed over Reese Technology Center in February 2009. Credit: BCM, Texas Tech University

From Live Science:

This summer, the Verification of the Origins of Rotation in Tornadoes EXperiment 2 (VORTEX2) brought 80 scientists and crew members and dozens of research vehicles and platforms to the tornado-prone regions of the United States to conduct the most detailed studies to date of tornadoes. Sarah Dillingham was part of that effort, one of the members of Texas Tech’s Multiple Observations of Boundaries In the Local storm Environment (MOBILE) team, helping deploy StickNet mobile sensors in the paths of dangerous storms. VORTEX2 has wound down for the 2009 season, but will re-emerge in 2010. Dillingham offers her thoughts on her first yield of field research as she responds to the ScienceLives 10 Questions below.

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In Search of Chinese Science

The New Atlantis:

One of my schoolmasters was fond of saying that there are only two worthwhile forms of worldly immortality: to get a poem in the Oxford Book of English Verse, or to have a mathematical theorem named after you. The British scholar Joseph Needham (1900–1995) was no better than a passable amateur poet, judging by the handful of verses in Simon Winchester’s biography of him. He did have a scientific training, but it was in biochemistry, not math, so there is no Needham’s Theorem, nor even a Needham Conjecture. He does, though, enjoy the rare distinction of having a Question named for him. Not a mere question, but a Question, one that has generated endless discussion and many theories.

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