Riding an Ion Drive to the Asteroid Belt

Link: Riding an Ion Drive to the Asteroid Belt

Iron Condor writes “JPL is now close to embarking on another of its trademark, one-of-a-kind missions, this time to the heart of the asteroid belt: The Dawn mission is being prepared for launch this summer from Kennedy Space Center. Dawn will explore Ceres and Vesta, the two largest known asteroids in our solar system, which lie in the vast expanse between Mars and Jupiter. In the process, the mission will make history on several fronts. Besides being the first spacecraft to orbit a main-belt asteroid and the first to ever orbit two targets after leaving Earth, Dawn will be the first science mission powered by electric ion propulsion, the world’s most advanced and efficient space propulsion technology.”

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Forgetting May be Part of the Remembering Process

Link: Forgetting May be Part of the Remembering Process

CFTM writes “The New York Times is running an interesting article about how human memory works and the theorized adaptive nature of forgetfulness”. From the article, “Whether drawing a mental blank on a new A.T.M. password, a favorite recipe or an old boyfriend, people have ample opportunity every day to curse their own forgetfulness. But forgetting is also a blessing, and researchers reported on Sunday that the ability to block certain memories reduces the demands on the brain when it is trying to recall something important. The study, appearing in the journal Nature Neuroscience, is the first to record visual images of people’s brains as they suppress distracting memories. The more efficiently that study participants were tuning out irrelevant words during a word-memorization test, the sharper the drop in activity in areas of their brains involved in recollection. Accurate remembering became easier, in terms of the energy required.”

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Misuse of Scientific Data By the White House

Link: Misuse of Scientific Data By the White House

Science data nerds writes “The White House is consistently and persistently claiming that the US is doing better than Europe in reducing greenhouse gas emissions. This is false — their claim is purely based on carefully selecting the only subset of the data that supports this conclusion. When all the data are used, it is plain that European emissions have declined substantially and US emissions have grown substantially. The article, and this linked analysis, debunk the White House claims.”

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Encrypt and Sign Gmail messages with FireGPG

Link: Encrypt and Sign Gmail messages with FireGPG

Linux.com (Same owners as Slashdot) has a story up about FireGPG and says “Gmail may be an excellent Web-based email application, but there is no easy way to use it with privacy tools like GnuPG. The FireGPG extension for Firefox is designed to solve this problem. It integrates nicely into Gmail’s interface and allows you… Encrypt and sign Gmail messages with FireGPG

Read more of this story at Slashdot.

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New Fuel Cell Twice As Efficient As Generators

Link: New Fuel Cell Twice As Efficient As Generators

Hank Green writes “A new kind of Solid Oxide Fuel Cell has been developed that can consume any kind of fuel, from hydrogen to bio-diesel; it is over two times more efficient than traditional generators. Acumentrics is attempting to market the technology to off-grid applications (like National Parks) and also for home use as personal Combined Heat and Power plants that are extremely efficient (half as carbon-intensive as grid power.)”

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