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Space

Submission + - Using Light's Handedness to Find Alien Life (eurekalert.org)

Submitted by
Rational Egoist
Rational Egoist writes: "Scientists working at the National Institute of Standards and Technology have come up with a novel, easy way to detect life on other planets. Rather than try to measure the composition of atmospheres, they want to look at the chirality of light coming from the planet. From the article: "If the [planet's] surface had just a collection of random chiral molecules, half would go left, half right," Germer says. "But life's self-assembly means they all would go one way. It's hard to imagine a planet's surface exhibiting handedness without the presence of self assembly, which is an essential component of life." And they have already built a working model: "Because chiral molecules reflect light in a way that indicates their handedness, the research team built a device to shine light on plant leaves and bacteria, and then detect the polarized reflections from the organisms' chlorophyll from a short distance away. The device detected chirality from both sources." The article abstract is available online."
Biotech

Submission + - What do Bird Feathers and Beer Foam Have in Common (yale.edu) 1

Submitted by
Rational Egoist
Rational Egoist writes: "Researchers at Yale University have found that some of the brightest colors in bird feathers are created through structures similar in origin and composition to that of beer foam. Unlike with most colors in nature — which are produced by pigments — the bright blue colors of Bluebirds and Blue Jays are actually produced by sponge-like nanostructures. These structures are formed in quite the same way as beer foam. From the article: "[Researchers] compared the nanostructures to examples of materials undergoing phase separation, in which mixtures of different substances become unstable and separate from one another, such as the carbon-dioxide bubbles that form when the top is popped off a bubbly drink. They found that the color-producing structures in feathers appear to self-assemble in much the same manner. Bubbles of water form in a protein-rich soup inside the living cell and are replaced with air as the feather grows.""
Hardware Hacking

Where to Find Axles, Gears For Kinetic Sculpture? 267

Posted by timothy from the man-you-don't-meet-every-day dept.
sneakyimp writes "My brother is an architect and sculptor and wants to create kinetic sculptures powered by wind, steam, and sun. He wants to avoid electrical systems and keep this mechanical. He's prepared to cast metals for custom parts if necessary, but is hoping to find a cheap source of gears, axles, and bearings for the internal mechanical workings of these contraptions. We'll need things like miter/bevel/spur/helical gears, standard and thrust bearings, and axles." Read on below for more on the details of what sneakyimp is looking for — dismembered Capsela units won't do it.
Censorship

Submission + - Afghan Student Gets 20 Years for Blasphemy (latimes.com)

Submitted by
Invisible Pink Unicorn
Invisible Pink Unicorn writes: "Despite nationwide public support for his initial death sentence, a three-judge appeals court has reduced the sentence of Sayed Parwez Kambakhsh to 20 years in prison. Kambakhsh was charged with circulating an article on women's rights that he found online. From the article: "Family members have said Kambakhsh was beaten and threatened with death until he signed a confession and that local journalists who expressed support for him were warned they would be arrested if they persisted.""
Star Wars Prequels

LucasArts, Bioware Announce Star Wars MMO 346

Posted by Soulskill from the in-a-galaxy-not-so-far-away-after-all dept.
LucasArts and Bioware held a press conference today to confirm what has been suspected for a long time: they're working on a Star Wars MMO. It will be called Star Wars: The Old Republic, and it will be a continuation of the Knights of the Old Republic franchise. Further coverage is available at Gamespot, and IGN has some of the concept art. An official website for the game was launched as well. "According to the game's official announcement, Star Wars: The Old Republic is set thousands of years before the rise of Darth Vader, with the galaxy divided by war between the Empire and the Sith. That's about 300 years after the events of KotOR, a time frame that, according to Zeschuk, 'is completely unexplored in the lore.' Players can take the role of either a Jedi, a Sith or other classic Star Wars characters -- and, as perhaps can be expected from BioWare, Muzyka says story will be a major component, underlying and driving all of the player's actions."
Medicine

Study Links Personal Music Players To Hearing Loss 405

Posted by CmdrTaco from the time-for-this-again dept.
fprintf writes "A recent NY Times article discusses links between personal music players and hearing loss. This is not anything new; personally, I have hearing loss from listening to my Sony Walkman cassette player many years ago. However, given the widespread use of the personal music players, I see people using earbuds everywhere; is there a technical solution to the potential danger?"
The Courts

Palin E-mail Hacker Indicted 846

Posted by CmdrTaco from the very-stealthy dept.
doomsdaywire writes "A University of Tennessee student who is the son of a Memphis legislator has been indicted by a federal grand jury on charges of hacking Republican vice presidential candidate Sarah Palin's personal e-mail. [...] If convicted, [David C.] Kernell faces a maximum of five years in prison, a $250,000 fine and a three-year term of supervised release. A trial date has not been set."
It's funny. Laugh.

Prevent Gmail From Emailing Under the Influence 258

Posted by kdawson from the chili-meter-with-brains dept.
mikesd81 writes "Google has developed 'Mail Goggles,' a Gmail add-on that makes sending email from Gmail more difficult during certain times (which you can set). If you have Mail Goggles installed, it will force you to answer a series of math questions before sending out any new messages. You can adjust the math difficulty and times this option is in effect. If you get any of the questions wrong, Mail Goggles will say, 'Water and bed for you. Or try again.' Of course, if you set the math settings too high, you may have a tough time solving some of those problems in under 60 seconds, even when sober. Then again, if you're sober, you could just turn Mail Goggles off and hit send on that impassioned letter to your ex-boyfriend/girlfriend or that flame to your boss."
Biotech

Researchers Create a Protein Map of Human Spit 110

Posted by samzenpus from the doctor-saliva dept.
Ant writes "United States researchers have identified all 1,116 unique proteins found in human saliva glands. It was a discovery they said on Tuesday that could usher in a wave of convenient, spit-based diagnostic tests that could be done without the need for a single drop of blood. As many as 20 percent of the proteins found in saliva are also found in blood, said Fred Hagen, a researcher at the University of Rochester Medical Center in New York who worked on the study."
Space

Submission + - Gamma Ray Burst Visible at Record Distance (nasa.gov)

Submitted by
Invisible Pink Unicorn
Invisible Pink Unicorn writes: "A gamma ray burst detected on March 19 by NASA's Swift satellite has set a new record for the most distant object that could be seen with the naked eye. The burst had a measured redshift of 0.94, which translates into a distance of 7.5 billion light years, meaning the explosion took place 7.5 billion years ago. The optical afterglow from heated gas was 2.5 million times more luminous than the most luminous supernova ever recorded, making it the most intrinsically bright object ever observed by humans in the universe. The previous most distant object visible to the naked eye is the nearby galaxy M33, a relatively short 2.9 million light years from Earth."
Space

Submission + - Solar System Date of Birth Determined (ucdavis.edu)

Submitted by
Invisible Pink Unicorn
Invisible Pink Unicorn writes: "UC Davis researchers have dated the earliest step in the formation of the solar system — when microscopic interstellar dust coalesced into mountain-sized chunks of rock — to 4,568 million years ago, within a range of about 2,080,000 years. In the second stage, mountain-sized masses grew quickly into about 20 Mars-sized planets and, in the third and final stage, these small planets smashed into each other in a series of giant collisions that left the planets we know today. The dates of these intermediary stages are well established. The article abstract is available from Astrophysical Journal Letters."
Space

Submission + - Deep Impact Probe to Look for Earth-sized Planets (eurekalert.org)

Submitted by
Invisible Pink Unicorn
Invisible Pink Unicorn writes: "NASA has given University of Maryland scientists the green light to fly the Deep Impact probe to Comet Hartley 2. The spacecraft will fly by Earth on New Year's Eve at the beginning of a more than two-and-a-half-year journey to Hartley 2. During the first six months of the journey to Hartley 2, they will use the larger of the two telescopes on Deep Impact to search for Earth-sized planets around five stars selected as likely candidates for such planets. Upon arriving at the comet, Deep Impact will conduct an extended flyby of Hartley 2 using all three of the spacecraft's instruments — two telescopes with digital color cameras and an infrared spectrometer."
Biotech

Submission + - Artificial Blood Vessels Grown on a Nano-Template (eurekalert.org)

Submitted by
Invisible Pink Unicorn
Invisible Pink Unicorn writes: "Researchers at MIT have found a way to induce cells to form parallel tube-like structures that could one day serve as tiny engineered blood vessels. The researchers found that they can control the cells' development by growing them on a surface with nano-scale patterning. The work focuses on vascular tissue, which includes capillaries, the tiniest blood vessels, and is an important part of the circulatory system. The team has created a surface that can serve as a template to grow capillary tubes aligned in a specific direction. The cells, known as endothelial progenitor cells (EPCs), not only elongate in the direction of the grooves, but also align themselves along the grooves. That results in a multicellular structure with defined edges — a band structure. Once the band structures form, the researchers apply a commonly used gel that induces cells to form three-dimensional tubes."
Biotech

Submission + - Nanotube-Excreting Bacteria Allow Mass Production (eurekalert.org)

Submitted by
Invisible Pink Unicorn
Invisible Pink Unicorn writes: "Engineers at the University of California, Riverside have found semiconducting nanotubes produced by living bacteria — a discovery that could help in the creation of a new generation of nanoelectronic devices. According to the lead researcher, 'We have shown that a jar with a bug in it can create potentially useful nanostructures.' This is the first time nanotubes have been shown to be produced by biological rather than chemical means. This research began when they observed something unexpected happening while attempting to clean up arsenic contamination using the metal-reducing bacterium Shewanella. In a process that is not yet fully understood, the bacterium secretes polysacarides that seem to produce the template for the arsenic-sulfide nanotubes. These nanotubes behave as metals with electrical and photoconductive properties useful in nanoelectronics. The article abstract is available from the Proceedings of the National Academy of Sciences."

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