The Whole World Is Optimistic, Survey Finds

From Live Science:

Despite current economic woes, a new study based on global survey data finds optimism to be universal. Sunny outlooks are most prevalent in Ireland, Brazil, Denmark, and New Zealand.

The United States ranks No. 10.

Nearly 90 percent of people around the globe expect the next five years to be as good or better than life today, the study found. And 95 percent expect their life in five years to be as good or better than it was five years ago.

The study, from the University of Kansas and Gallup, suggests humans are optimistic by nature, the researchers conclude.

Read more ....

Fundamental Mechanism For Cell Organization Discovered

Image: An embryo treated with RNA interference to delay the onset of cell polarization. At the beginning of the process, P granules (green) have already nearly completely dissolved throughout the embryo. However, when the embryo ultimately polarizes, the polarity protein PAR-2 (red) appears on the posterior cortex, and P granules reform by condensation in the vicinity of this posterior region. Credit: Clifford Brangwynne (Credit: Image courtesy of Marine Biological Laboratory)

From Science Digest:

ScienceDaily (May 22, 2009) — Scientists have discovered that cells use a very simple phase transition -- similar to water vapor condensing into dew -- to assemble and localize subcellular structures that are involved in formation of the embryo.

The discovery, which was made during the 2008 Physiology course at the Marine Biological Laboratory (MBL), is reported in the May 21 early online edition of Science by Clifford P. Brangwynne and Anthony A. Hyman of the Max Planck Institute for Molecular Cell Biology and Genetics in Dresden, Germany, and their colleagues, including Frank Jülicher of the Max Planck Institute for the Physics of Complex Systems, also in Dresden.

Read more ....

Huge Mars Region Shaped by Water, Rover Mission Finds

A false-color image shows Cape St. Vincent, a feature of Mars's massive Victoria Crater. After a dangerous descent into the crater, the Mars rover Opportunity has shown that the red planet once had a network of underground water spread across an area the size of Oklahoma, scientists announced in May 2009. Photograph courtesy Steven W. Squyres

From National Geographic:

Shifting sand dunes on ancient Mars once concealed a network of underground water spread across an area the size of Oklahoma, according to new findings from NASA's Mars rover Opportunity.

In 2004 Opportunity had spotted minerals and blueberry-shaped rocks indicative of ancient groundwater in the Martian crater Endurance.

The robotic explorer has now found similar signs of past water in Victoria, a crater some 3.5 miles (6 kilometers) away.

Opportunity also spotted unique rock layers in the sides of Victoria Crater, which are likely the petrified remnants of ancient sand dunes.

Read more ....

Opposites Really Do Attract In Human Search For A Mate According To New Study

Photo: Sophie Dahl and Jamie Cullum are living proof that opposites really do attract

From The Daily Mail:

It's an age old theory but when it comes to choosing a mate, opposites really do attract, according to a Brazilian study that found people are subconsciously more likely to choose a partner whose genetic make-up is different to their own.

The study found evidence to suggest that married couples are more likely to have genetic differences in a DNA region that governs the immune system than couples who were randomly matched.

Maria da Graca Bicalho and her colleagues at the University of Parana in Brazil reported that this was likely to be an evolutionary strategy to ensure healthy reproduction because genetic variability is an advantage for offspring.

Bicalho said: 'Although it may be tempting to think that humans choose their partners because of their similarities, our research has shown clearly that it is differences that make for successful reproduction, and that the subconscious drive to have healthy children is important when choosing a mate.'

Read more ....

Rumor Round-Up: Everything We’ve Heard About the Next iPhone

From Gadget Lab/Wired News:

This month, the Apple rumor volcano erupted with purported details of the next-generation iPhone. Various blogs claim receiving tips from informed sources about features in the highly anticipated handset, such as a magnetometer (digital compass), a video camera and a speedier processor.

Here, we round up every rumor that’s appeared about Apple’s next iPhone, which many are betting will be announced June 8 at the Worldwide Developer Conference in San Francisco. We’re also accompanying each rumor with a percentage rating for its probability to be true, as well as our analysis.

When WWDC arrives, we’ll present a report card showing which publications were correct and which were wrong. And of course, we’ll grade ourselves on our predictions, too.

With that said, here’s everything we’ve heard about the next iPhone:

Read more ....

Power Plants: Artificial Trees That Harvest Sun And Wind To Generate Electricity

Image: GOING OUT ON A LIMB: A new company called Solar Botanic plans to build artificial trees that reap solar and wind energy. Solar Botanic

From Scientific America:

A start-up proposes forests of fake trees with "leaves" that soak up sunshine and flutter in the breeze to generate clean solar and wind power. Could it just be crazy enough to work?

While on a train ride to visit his sister in the Netherlands in 2002, where monstrous wind turbines now mar scenic views, Alex van der Beek got an idea: Instead of ruining the natural landscape with conventional technology, why not generate electricity from something that blends in—a fake tree?

Van der Beek—whose previous professional experience was teaching alternative medicine—founded Solar Botanic, Ltd., in London last year on the concept. Solar Botanic's ambitious plan involves bringing together three different energy-generation technologies—photovoltaics (aka solar power, or electricity from visible sunlight), thermoelectrics (electricity from heat) and piezoelectrics (electricity from pressure)—all in the unassuming shape of a leaf on its stem.

Read more ....

Mars Robots May Have Destroyed Evidence Of Life

Photo: This image was taken by NASA's Phoenix Mars Lander's Surface Stereo Imager on June 5, 2008, the eleventh day after landing. It shows the robotic arm scoop, with a soil sample, poised over the partially open door of the lander's oven (Image: NASA / JPL-Caltech / University of Arizona / Texas A&M University)

From New Scientist:

HAVE Mars landers been destroying signs of life? Instead of identifying chemicals that could point to life, NASA's robot explorers may have been toasting them by mistake.

In 1976, many people's hopes of finding life on Mars collapsed when the twin Viking landers failed to detect even minute quantities of organic compounds - the complex, carbon-containing molecules that are central to life as we know it. "It contributed, in my opinion, to the fact that there were no additional [US lander] missions to Mars for 20 years," says Jeff Moore of NASA's Ames Research Center in Moffett Field, California.

Read more ....

Will Obama Kill Navigation Backup System as GPS Threatens to Fail?

LORAN radio transmission tower. (Photograph by USCG/PA1 Chuck Kalnbach)

From Popular Mechanics:

Obama's budget attempts to ax LORAN-C, a navigation backup program, even as experts at the Government Accountability Office sound warnings about satellite reliability. What will happen if GPS fails?

Even as a government watchdog agency warns that GPS navigation satellites could fail, the Obama administration's proposed fiscal 2010 budget has quietly killed the nation's backup navigation system.

The Government Accountability Office (GAO) released a report last week warning, "It is uncertain whether the Air Force will be able to acquire new satellites in time to maintain current GPS service without interruption. If not, some military operations and some civilian users could be adversely affected." The report also notes that the current program is about $870 million over budget and the launch of its first satellite has been delayed to November 2009, almost three years late.

Read more ....

Animals Can Tell Right From Wrong

Research suggests that it's not just humans who have a moral compass Photo: GETTY

From The Telegraph:

Animals possess a sense of morality that allows them to tell the difference between right and wrong, according to a controversial new book.

Scientists studying animal behaviour believe they have growing evidence that species ranging from mice to primates are governed by moral codes of conduct in the same way as humans.

Until recently, humans were thought to be the only species to experience complex emotions and have a sense of morality.

Read more ....

Eureka Moment That Led To The Discovery Of DNA Fingerprinting

Alec Jeffreys with a copy of the first DNA fingerprint profile. Photograph: Rui Vieira/PA

From The Guardian:

Twenty-five years ago academic Alec Jeffreys stumbled on a remarkable discovery. The scientific breakthrough led to DNA fingerprinting - which has since trapped hundreds of killers, freed the innocent and revolutionised science and criminal justice.

On 10 September 1984, geneticist Alec Jeffreys wrote three words - "33 autorad off" - in his red desk diary. The phrase marked the completion of an experiment, set up that summer, to study how inherited illnesses pass through families. It failed completely.

Yet the project remains one of the most profoundly influential pieces of research ever carried out in a British laboratory, for it produced the world's first DNA fingerprint, a technology that has revolutionised crime scene investigations, led to the convictions of murderers and rapists, and transformed immigration disputes and paternity cases.

Read more ....

Google Earth Maps Out Discrimination Against Burakumin Caste In Japan

The map showed how old ghettos relate to the 21st-century streets

From Times Online:

A handful of innocent-looking antique maps, one offensive word and tens of thousands of offended “untouchables” have plunged Google into an unspoken class war that has raged in Japan for centuries.

Despite its ambition to be the cartographer of the internet age, the search engine has lumbered into one of the darkest corners of Japan — the bigotry of mainstream Japanese society towards the burakumin, the “filthy mob”, whose ancestors fell outside the caste system of the 17th-century samurai era.

By allowing old maps to be overlaid on satellite images of Tokyo, Osaka and Kyoto on its Google Earth service, the search engine shows how the old ghettos relate to the 21st-century streets.

That, critics say, is perfect ammunition to hurt descendants of the people who lived there 400 years ago.

Read more ....

Ancient Teeth Hint That Right-handedness Is Nothing New

From New Scientist:

Ancient bones suggest "lefties" have been coping with a right-handed world for more than half a million years. A study of Homo heidelbergensis, an ancestor of Neanderthals, seems to show that the ancient humans were predominately right-handed.

"Finding that a hominin species as old as Homo heidelbergensis is already right-handed helps to trace back the chain of modernity concerning hand laterality," says Marina Mosquera, a paleoanthropologist at Universitat Rovira i Virgili in Tarragona, Spain, who was involved in the study.

Humans are the only animal believed to show a strong preference for performing tasks with one hand or the other. Determining when right-handedness first evolved could shed light on traits linked to lateralised brains, such as language and technology, Mosquera says. Efforts to solve this mystery have looked to ancient human skulls and marks left on tools.

Read more ....

Molecular Link Between Sleep And Weight Gain

From Science Daily:

ScienceDaily (May 23, 2009) — There appears to be a link between sleep and weight control, with some studies indicating that sleep disruption can increase weight gain and others that diet affects sleep. Victor Uebele and colleagues, at Merck Research Laboratories, West Point, have now provided further evidence to support this association by showing that T-type calcium channels regulate body weight maintenance and sleep in mice.

These data suggest that sleep and circadian treatment approaches may be of benefit in the fight against obesity.

Read more ....

Race Fans Are Riskier Drivers

Kyle Petty (#42) and Dale Jarrett (#18) lead the pack as the 1993 Daytona 500, NASCAR's flagship event, gets underway. (Photo from How Stuff Works)

From Live Science:

After you finish watching the Indy 500 this Sunday, you may want to have your designated driver take you home. Not only should he be sober, but he also should have no interest in motor sports.

According to Australian researchers, being a race fan makes you more likely to not only speed in your own car but also to see little wrong with it.

Several factors have been found to influence a driver's attitude towards speeding and aggressive driving, including age, gender and what psychologists call "sensation seeking propensity." This thrill-seeking behavior may also be a result of a driver's environment.

Read more ....

Bolden Is Tapped to Run NASA

Photo: Former astronaut Charles Bolden Jr., shown at Beihang University in 2005, would be the first African-American to run NASA. His past ties to two big contractors for the agency have sparked opposition to the pick. SIPA/Newscom

From The Wall Street Journal:

WASHINGTON -- President Barack Obama picked former astronaut and retired Marine Corps Gen. Charles Bolden Jr. to head the National Aeronautics and Space Administration, but controversy over his background and NASA's future direction could complicate his job.

Gen. Bolden's nomination caps months of political maneuvering, which has left some major agency decisions in limbo. It also has become a flash point for a broad debate over how NASA should conduct future human space-exploration programs.

Gen. Bolden was a NASA official in the early 1990s and more recently worked for two major NASA contractors. His critics contend he's too closely tied to existing NASA programs.

Read more ....

Boys Have Sweeter Tooth Than Girls

Children's love of sweetness starts to wane as they hit their teens Photo: John Kernick

From The Telegraph:

Girls have a finer sense of taste than boys - but boys have a sweeter tooth, a new food study has found.

On average boys need 10 per cent more sourness and 20 per cent more sweetness in their grub to recognise how tasty it is.

However, boys prefer wild and extreme tastes compared to the muted flavours favoured by girls, the figures revealed.

Read more ....

No More Shuttles, No In-Space Fixes

Astronauts Michael Good, left, and Mike Massimino participate in the mission's fourth spacewalk to repair the Hubble Space Telescope May 17, 2009 in Space. The space shuttle Atlantis' mission is to overhaul the Hubble Space Telescope in order to extend its working life. NASA via Getty Pictures

From MSNBC:

NASA's future spacecraft won't have built-in ability to repair work

When the space shuttle Atlantis lands — planned for Saturday — it will cap off a mission to Hubble and mark the end of the servicing era.

The astronauts' fifth overhaul of the Hubble Space Telescope was the last planned mission to repair the telescope, or any satellite for that matter. And if NASA retires the space shuttle fleet in 2010 as planned, the agency will lose the ability to visit orbiting spacecraft and repair them in space.

"This is the last scheduled servicing mission of Hubble with the space shuttle, and what I think it's demonstrated is the extreme utility of having people working in space and accomplishing things that are different than what was expected," said astronaut John Grunsfeld, who has helped fix Hubble on three different missions, from space Wednesday.

Read more ....

Body Burners: The Forensics Of Fire

From New Scientist:

THE fire started with a match held under a cotton blanket close to the man's waist. Within 2 minutes, the flames had spread across the single bed he was lying on and were consuming his cotton sweatshirt and trousers.

Around a dozen onlookers were at the scene - including police, fire investigators and death investigators - yet all they did was watch. That was, after all, their job. The "victim" had in fact died some time ago, having previously donated his remains to medical research.

His body had reached a unique team led by Elayne Pope, a forensic scientist at the University of West Florida in Pensacola. Her group spends its time setting fire to corpses in a range of different circumstances, to work out exactly how the human body burns. They seem to be the only group carrying out such systematic studies in this area, and are certainly the only ones publishing their work.

Read more ....

Queuing Up For Dinner: Dolphins Enjoy Sardine Feeding Frenzy

Working as a team common dolphins head towards a bait ball in Port St. Johns, South Africa.

From The Daily Mail:

Like workers in a canteen the dolphins line up patiently as they look forward to a rather large and tasty lunch.

The aquatic mammals head to the South African coastline each year for the Sardine Run - an underwater migration where millions of fish head eastwards from their cool spawning waters near Cape Town in search of zooplankton.

The dolphins, alongside sword fish and sharks ambush them from below, while gannets and gulls hover above the waves waiting for their chance to pick up a morsel from above.

It is one of nature's greatest phenomena which takes place in June each year. Underwater photographer Alexander Safonov is looking forward to experiencing the awesome sight again after he captured it on camera in 2008.

Read more ....

The Impact of Computing : 78% More per Year, v2.0

(Click to Enlarge)

From The Futurist:

Anyone who follows technology is familar with Moore's Law and its many variations, and has come to expect the price of computing power to halve every 18 months. But many people don't see the true long-term impact of this beyond the need to upgrade their computer every three or four years. To not internalize this more deeply is to miss investment opportunities, grossly mispredict the future, and be utterly unprepared for massive, sweeping changes to human society. Hence, it is time to update the first version of this all-important article that was written on February 21, 2006.

Read more ....