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Microbial life on Mars: Could Saltwater Make it Possible?

By Guest PostAugust 19, 2011Scienceair pressure, antarctic lakes, atmospheres, bruce block, carbon dioxide, daily and seasonal cycles, earth, forms of microbial life, gregory dick, gulf of mexico, mars, Mars Phoenix Lander, mars today, microbe, microbial life, NASA, nilton renno, organisms, perchlorate salts, salt loving extremophile microorganisms, saltwater on mars, sea level, temperatures, the centro de astrobiologia in madrid, the university of georgia, united states, university of michigan, university of texas at dallas, water vapor

ANN ARBOR, Mich.— How common are droplets of saltwater on Mars? Could microbial life survive and reproduce in them? A new million-dollar NASA project led by the University of Michigan aims to answer those questions.

This project begins three years after beads of liquid brine were first photographed on one of the Mars Phoenix lander’s legs.

“On Earth, everywhere there’s liquid water, there is microbial life,” said Nilton Renno, a professor in the Department of Atmospheric, Oceanic and Space Sciences who is the principal investigator. Researchers from NASA, the University of Texas at Dallas, the University of Georgia and the Centro de Astrobiologia in Madrid are also involved. (more…)

‚Extreme Negative Anti-Smoking Ads Can Backfire’

By Guest PostAugust 19, 2011Healthanti smoking ads, anti tobacco, boomerang effect, smokers habits, threatening ads

MU researchers say disgusting and threatening ads can cause strong defense responses from viewers

COLUMBIA, Mo. – Health communicators have long searched for the most effective ways to convince smokers to quit. Now, University of Missouri researchers have found that using a combination of disturbing images and threatening messages to prevent smoking is not effective and could potentially cause an unexpected reaction. (more…)

Newspaper Sites across Europe Demonstrate Growth in the Past Year

By Guest PostAugust 18, 2011Technologyagoda, bild, booking, british daily mail, Comscore, european markets, european web property, Facebook, french newspapers, german newspaper, google sites, hürriyet, internet usage in europe, komsomolskaya pravda, le figaro, le monde, microsoft sites, milliyet, newspaper property in europe, nited kingdom, online, priceline, ria novosti, russia, russian social network, The Guardian, the netherlands, the new york times, tripadvisor sites, turkey, turkish newspapers, unique visitors, vkontakte

*comScore Releases Overview of European Internet Usage for June 2011*

LONDON, UK, 18 August 2011 – comScore, Inc., a leader in measuring the digital world, today released an overview of Internet usage in Europe, showing 368.6 million unique visitors went online in June 2011 for an average of 26.1 hours per person. This release highlights Internet usage in 49 European markets aggregated under the European region and provides individual reporting on 18 markets. Among the reportable markets, the Netherlands, United Kingdom, and Turkey continued to show the highest average engagement, with users from these markets spending an average of more than 31 hours online in the past month. (more…)

Romantic Sexual Relationships Deter Teenage Delinquency, New Study Shows

By Guest PostAugust 18, 2011Healthdating experiences, dating relationships, early intimacy, romantic relationships, sexually active, teenage, teens

AUSTIN, Texas — Sexually active teens in committed, romantic relationships are less likely to engage in delinquent behavior than teens who have casual sex, according to new research from psychologists at The University of Texas at Austin. (more…)

Researchers Discover Oldest Evidence of Nails in Modern Primates

By Guest PostAugust 18, 2011Naturefingernails, first modern primates, grammar of fashion, jonathan bloch, manicured nails, modern primates, primitive primate, teilhardina brandti, thermal maximum

GAINESVILLE, Fla. — From hot pink to traditional French and Lady Gaga’s sophisticated designs, manicured nails have become the grammar of fashion. (more…)

Mr. Fusion Helps Students Build a Nuclear Reactor

By Guest PostAugust 18, 2011Science, Technologyalbert babb, brian greene, carl greninger, farnsworth hirsch fusor, garage, glassification of nuclear waste, high end suv, iec 9000, jayce glenn, microsoft employee, microsoft it operations, microsoft research science fair, new york, nuclear reactor, physicist, physics, thermonuclear reactor, united states operates 104 nuclear reactors, voila fusion, x ray machine

*Microsoft employee Carl Greninger helped a team of young students build a working nuclear reactor in his garage. He hopes the project can inspire a passion for physics in students around the country.*

REDMOND, Wash. – Sometimes you have to smash a few atoms to excite people about science.

So says Carl Greninger, a program manager in Microsoft IT Operations by day and full-fledged physics fanatic by night. That’s why he decided to help some young students get hands-on experience with something they couldn’t find in their classrooms: a working thermonuclear reactor.

For the past year, a group of local students – some as young as 13 years old – have met at Greninger’s garage every Friday night to build a type of fusion reactor known as a Farnsworth–Hirsch Fusor. Dubbed IEC-9000, their machine has been fusing atoms and producing neutrons since May. It cost about as much as a high-end SUV, weighs 1,400 pounds, and generates temperatures hotter than the surface of the sun. (more…)

NASA Research Confirms it’s a Small World, After All

By Guest PostAugust 17, 2011Scienceatmosphere, baseline interferometry, champs sur marne, changes in earth size, charles darwin, delft university of technology, doppler orbitography and radiopositioning integrated by satellite, earth expansion contraction theory, earth is a small world, earth lithosphere, earth orbit, earth radius, france, french satellite system, geophysical research letters, global climate change, global positioning system, grace, gravity recovery and climate experiment, ground navigation, high precision space geodesy, international terrestrial reference frame, land, large scale climate events like el nino and la nina, models of ocean bottom pressure, mother nature, NASA, ocean, solid earth, the netherlands, tracking spacecraft, walt disney, xiaoping wu

A NASA-led research team has confirmed what Walt Disney told us all along: Earth really is a small world, after all.

Since Charles Darwin’s time, scientists have speculated that the solid Earth might be expanding or contracting. That was the prevailing belief, until scientists developed the theory of plate tectonics, which explained the large-scale motions of Earth’s lithosphere, or outermost shell. Even with the acceptance of plate tectonics half a century ago, some Earth and space scientists have continued to speculate on Earth’s possible expansion or contraction on various scientific grounds.

Now a new NASA study, published recently in Geophysical Research Letters, has essentially laid those speculations to rest. Using a cadre of space measurement tools and a new data calculation technique, the team detected no statistically significant expansion of the solid Earth. (more…)

Amazon Sites Visited by 1 in 5 Global Internet Users in June

By Guest PostAugust 17, 2011Technologyamazon sites, auction sites, comscore media metrix, german retail site, internet population, internet visitors

comScore Releases Visitation View of Leading Global Retail and Auction Sites

Reston, VA, August 17, 2011 – comScore, Inc., a leader in measuring the digital world, today released a report on selected global retail and auction sites based on data from the comScore Media Metrix service. The study found that of the destinations analyzed, Amazon Sites reached the largest global audience with more than 282 million visitors in June, or 20.4 percent of the worldwide Internet population. Other top brands in the study included eBay, which reached 16.2 percent of global Internet visitors, China’s Alibaba.com Corporation (11.3 percent reach), Apple.com Worldwide Sites (9.7 percent reach) and Japan’s Rakuten Inc. (4.2 percent reach). (more…)

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