Making Ships Efficient and Invisible

U.S. Navy Ships at Sea Wikimedia Commons

Anti-Wave Tech Tricks Ocean Water Into Standing Still, Making Ships Efficient and Invisible -- Popular Science

We’ve already seen how future ships can be cloaked against sonar, and maybe someday even space and time. Now researchers say they can cloak the ships’ wakes, tricking water itself into acting as though nothing is there.

A new metamaterial cloaking system can trick water into standing still as an object moves through it, by eliminating the shear force and reducing water displacement, Duke University researchers say. This in turn reduces the amount of energy required to move an object — say, a ship — through the water, theoretically saving fuel.

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My Comment: And this is the research that they are publicizing .... I would love to know what they are not telling us.

Military's Maple-Seed-Inspired Drone

Sneak Preview: Military's Maple-Seed-Inspired Drone, Plus More to Come at UAV Show Next Week -- Popular Science

After years of development and military funding setbacks, defense contractor Lockheed Martin is finally ready to debut its maple seed-inspired drone. The one-winged, one-foot-long SAMARAI drone just flew a test flight for the Associated Press ahead of its official unveiling at an unmanned vehicle conference next week.

The asymmetric UAV is modeled after maple seeds, called samara, that fly off trees and twirl through the air with the utmost efficiency. Originally, the SAMARAI was envisioned as a seed-sized drone that could deliver a 2-gram payload and send back streaming video, but that has since changed to a much bigger, whining drone.

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My Comment: It appears that the future for UAVs is to be miniaturized .... the smaller the better.

SETI Project Is Back Online

Allen Telescope Array

SETI Project: We're Listening Again, ET -- Mercury News

E.T., you can phone home again.

Forty-two radio telescope dishes near Mount Shasta will again start listening for sounds of intelligent life in the universe this fall after donors -- including actress Jodie Foster -- came up with more than $200,000 to save the Mountain View-based SETI program, made famous by the movie "Contact."

The Allen Telescope Array was shut down in April when the SETI (Search of Extraterrestrial Intelligence) Institute ran short of of money for the project.

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The Blackest Planet

Space spy: The team made their discovery while working through data from NASA's Kepler spacecraft, one of the world's most powerful telescopes

The Blackest Planet: Astronomers Uncover Alien World So 'Extraordinarily Dark' It Makes Coal Look Shiny -- Daily Mail

Astronomers have discovered the darkest known planet.

The exoplanet, known as TrES-2b, reflects less than 1 per cent of light, which makes it darker than any other planet or moon.

The discovery, detailed in the journal Monthly Notices of the Royal Astronomical Society, was made by analysing data from Nasa's Kepler spacecraft, which provides extremely precise measurements on the brightnesses of faraway stars.

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Jodie Foster Helps Revive SETI Search

A look at the SETI Institute's Allen Telescope Array at Hat Creek Observatory about 290 miles northeast of San Francisco, Calif. CREDIT: SETI Institute

Jodie Foster Helps Revive SETI Search For Aliens -- Live Science

E.T., the phone line is open and SETI is waiting for your call. And apparently Jodie Foster, too.

The nonprofit Search for Extraterrestrial Intelligence (SETI) Institute, which was forced earlier this year to shutter its Allen Telescope Array, used to listen for alien signals, due to budget issues, has raised enough money to resume the search for life beyond planet Earth.

The institute reached its goal last week of raising $200,000 to operate the telescope through the end of this year. The funds came from over 2,000 private donors, including the actress Jodie Foster, who played fictional SETI scientist Ellie Arroway in the 1997 movie "Contact."

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U.S. Science Funding Will Soon Be Cut Because Of The Debt Deal

U.S. Debt Deal Could Dramatically Slash Science Funding In 2013 -- Scientific American

US science agencies avoid immediate pain but could be devastated by automatic cuts in 2013.

Scalpel or guillotine? Those are the possible fates in store for US science funding after Congress and the White House reached a deal to cut federal spending and raise the nation's self-imposed debt limit before a 2 August deadline.

The product of tumultuous negotiations, the deal largely spares science in the short term but puts a day of reckoning on the horizon: 2 January 2013. If politicians cannot agree on how to improve the government's fiscal outlook by then through targeted cuts and other means--the scalpel option--their failure will automatically trigger the guillotine: a deep cut applied across a range of expenditures, including research. In the worst case, the automatic cuts could mean shuttered laboratories and mass lay-offs at universities.

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My Comment: The cutting has already happened .... look at NASA

Mars Rover Nears End Of Road

An artist's impression of one of the two Mars rovers, which have been studying geological samples on the planet. Reuters

Eight Years And 34 Million Miles On, Mars Rover Nears End Of Road -- The Independent

It travelled at an average speed of 60cm an hour and it has arrived a year late. But the Mars rover Opportunity is finally approaching its destination, the rim of the vast Endeavour crater.

Nasa hailed the six-wheel Opportunity's approach to the 22.5km-wide crater last night as a "tremendous scientific success".

The ageing robotic field geologist has logged more than 32km since it was first parachuted on to the planet's surface in 2003, along with its twin rover Spirit, for a planned three-month mission after their 34 million-mile journey from Earth. Spirit emitted its last signal a year ago after becoming trapped in sand. Opportunity crawled out from a crater in 2008 and headed south to the Endeavour, a two-year journey in theory, which has taken longer because Opportunity had to drive backwards to prevent its front wheel from wearing out.

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Sun Unleashes Largest Solar Flare In Five Years

Sun Unleashes Largest Solar Flare In Five Years, Sending 10Billion Ton Storm Cloud Hurtling Through Space At 5Million MPH -- Daily Mail

The sun unleashed an unusually powerful solar flare yesterday, the largest in nearly five years.

The eruption launched a ten billion ton storm cloud hurtling through space at five million miles per hour.

Scientists said the event took place on the side of the sun that was not facing Earth, so there will be little impact to satellites and communication systems.

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My Comment: 10 billion tons .... that certainly makes one feel very small.

Image: The antiprotons lie sandwiched between the inner and outer Van Allen belts (in red) around the Earth.

Antimatter Belt Around Earth Discovered By Pamela Craft -- BBC

A thin band of antimatter particles called antiprotons enveloping the Earth has been spotted for the first time.

The find, described in Astrophysical Journal Letters, confirms theoretical work that predicted the Earth's magnetic field could trap antimatter.

The team says a small number of antiprotons lie between the Van Allen belts of trapped "normal" matter.

The researchers say there may be enough to implement a scheme using antimatter to fuel future spacecraft.

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How Wine Pollutes

Vineyards in Napa Valley, Calif. Many winemakers use sulfur on their vines and the chemical poses environmental problems. Getty Images

How Wine Production Pollutes -- Discovery

Sulfur applied to vineyards washes into nearby water -- and there's no way to know which vineyards use the chemical.

* Virtually all of the fungicidal sulfur applied to vineyards washes off into nearby bays and river basins.
* Sulfur has a number of potentially concerning consequences for plants, animals and ecosystems.
* For now, there is no good way to know what the environmental impact of your wine might be.

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Three Solar Flares Spark Power Grid Concerns

Solar Flare Aug. 4 This still from a video shows the CME lifting off from sunspot 1261. NASA/SDO

Video: Three Solar Flares Spark Power Grid Concerns And Ignite Auroras In The Upper United States -- Popular Science

A trifecta of sunsplosions over the past few days has prompted government agencies to once again warn of possible power and communications disruptions. The coronal mass ejections could produce a strong aurora as far south as Minnesota and Wisconsin, according to space weather forecasters at NOAA.

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Are Office Environment's Bad For Your Brain?

Working in an office is bad for your brain researchers say Photo: ALAMY

Working In An Office Is Bad For Your Brain -- The Telegraph

Working in an office is bad for your brain and can make you less productive, according to researchers.

A study has found that the hustle and bustle of modern offices can lead to a 32% drop in workers well being and reduce their productivity by 15%.

They have found that open plan offices create unwanted activity in the brains of workers that can get in the way of them doing the task at hand.

Open plan offices were first introduced in the 1950s and quickly became a popular as a way of laying out offices.

Having a clean and sterile desk can also leave employees with smaller brains, scientists claim.

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My Comment: I have to agree .... I was always more productive when I was not faced with distractions .... which an open plan office will provide.

World Wide Web Celebrates Its 20th Birthday

Basic: Sir Tim Berners-Lee's first web site was simply a page of links to allow scientists to share data and news

Many Happy Returns! World Wide Web Celebrates Its 20th Birthday -- The Daily Mail

* First web page born on August 6, 1991
* Now there are more than 19.68billion pages

It began as a simple page of links that allowed a group of scientists to share data in the confines of their laboratories.

But in the 20 years since, it has become an inextricable part of the lives of billions of people.

The World Wide Web (WWW) was born on August 6, 1991, when the first web page was launched on the internet by Sir Tim Berners-Lee.

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My Comment: I suspect that the web will be around for a little longer.

Is Music A Powerful Antidepressant?

Making Music Proves To Be Powerful Antidepressant -- Live Science

Making music might help lift more depressed people out of the dumps than common antidepressant medications do, the results of a new study suggest.

That's not to say the people with depression should toss out their meds and pick up a guitar. The music therapy administered to patients in the new study was in addition to regular therapy, and the patients continued their regular medication routines. But about one out of four depression sufferers is likely to respond to music therapy, Finnish researchers reported in August in the British Journal of Psychiatry. In comparison, a 2009 review of research published in the journal Cochrane Database Systemic Review found that doctors must treat between seven and 16 people with tricyclic antidepressant drugs for one person to see improvement.

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Nigeria's Oil Pollution Will Take Decades To Clean-Up

Nigeria Ogoniland Oil Clean-Up 'Could Take 30 Years -- BBC

Nigeria's Ogoniland region could take 30 years to recover fully from the damage caused by years of oil spills, a long-awaited UN report says.

The study says complete restoration could entail the world's "most wide-ranging and long-term oil clean-up".

Communities faced a severe health risk, with some families drinking water with high levels of carcinogens, it said.

Oil giant Shell has accepted liability for two spills and said all oil spills were bad for Nigeria and the company.

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Where Did Man Learn To Walk

Giraffes roam in a wooded grassland savanna in Kenya's Nakuru National Park. The savanna grades into the woodland in the background. Credit: Naomi Levin, Johns Hopkins University

Where Did Humans Learn To Walk? -- Cosmos/AFP

PARIS: Grasslands dominated the cradle of humanity in east Africa longer and more broadly than thought, a new study has said, bolstering the idea that the rise of such landscapes shaped human evolution.

According to the so-called 'savannah hypothesis', the gradual transition from dense forests into grasslands helped drive the shift toward bipedalism, increased brain size and other distinctively human traits.

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The U.S. Military Wants To Reach The Stars

Space Travel: Finding The Technology To Traverse The Stars -- L.A. Times

The research-and-development arm of the U.S. military is launching a 100-Year Starship Study to find the technologies necessary for interstellar travel.

What will it take to build a spaceship capable of traveling to the stars? And what if you wanted it to be ready to launch in just 100 years?

It may sound like the premise of a science fiction show or reality TV series. But these are serious questions being asked by the Defense Advanced Research Projects Agency, the research-and-development arm of the U.S. military.

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My Comment: This is $500,000 that we will never see again.

Juno Explorer Launches On Five-Year Journey To Jupiter

NASA's Juno Explorer Launches On Five-Year Journey To Jupiter -- L.A. Times

The Juno spacecraft, which NASA hopes will unlock key mysteries about Jupiter and the origin of the solar system, lifts off from Florida's Cape Canaveral. The Jet Propulsion Laboratory is managing the $1.1-billion mission.

NASA's spacecraft Juno lifted off Friday in an incandescent arc over the Atlantic Ocean, the start of a five-year, 1.7-billion mile trip to Jupiter that scientists believe will unlock some of the secrets behind the origin of the solar system.

NASA's spacecraft Juno lifted off Friday in an incandescent arc over the Atlantic Ocean, the start of a five-year, 1.7-billion mile trip to Jupiter that scientists believe will unlock some of the secrets behind the origin of the solar system.

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How The Brain Remembers What Happens And When

Neuroscientists Identify How the Brain Remembers What Happens and When -- Science Daily

ScienceDaily (Aug. 4, 2011) — New York University neuroscientists have identified the parts of the brain we use to remember the timing of events within an episode. The study, which appears in the latest issue of the journal Science, enhances our understanding of how memories are processed and provides a potential roadmap for addressing memory-related afflictions.

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Next Generation of Computer Chips

Caltech engineers have developed a new way to isolate light on a photonic chip, allowing light to travel in only one direction. This finding can lead to the next generation of computer-chip technology: photonic chips that allow for faster computers and less data loss. (Credit: Caltech/Liang Feng)

Engineers Solve Longstanding Problem in Photonic Chip Technology: Findings Help Pave Way for Next Generation of Computer Chips -- Science Daily

ScienceDaily (Aug. 5, 2011) — Stretching for thousands of miles beneath oceans, optical fibers now connect every continent except for Antarctica. With less data loss and higher bandwidth, optical-fiber technology allows information to zip around the world, bringing pictures, video, and other data from every corner of the globe to your computer in a split second. But although optical fibers are increasingly replacing copper wires, carrying information via photons instead of electrons, today's computer technology still relies on electronic chips.

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