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The Cool Science Stuff Thread

How about a screen-stretching picture of Corina's backside with the sun behind her?
 
Climate research: food for thought

http://arstechnica.com/science/news/2011/09/do-cosmic-rays-set-the-earths-thermostat.ars

n recent years, the idea that the climate is driven by clouds and cosmic rays has received plenty of attention. Interest in the idea was prompted by a Danish physicist named Henrik Svensmark, who first suggested it in the late 1990s. Using satellite data on cloud coverage, which became available with the establishment of the International Satellite Cloud Climatology Project in 1983, Svensmark found a correlation between lower troposphere cloud cover and the 11-year solar cycle.

He proposed that cosmic rays initiate the formation of aerosols in the lower atmosphere that then form condensation nuclei for cloud droplets, increasing cloud formation from water vapor. Since low-level clouds increase Earth’s albedo (the amount of incoming solar radiation that is reflected back into space), more clouds mean cooler temperatures. Svensmark claimed that this mechanism was responsible for virtually every climatic event in Earth history, from ice ages to the Faint Young Sun paradox to Snowball Earth to our current warming trend. Needless to say, this would overturn decades of climate research.
 
Electric Plane Wows NASA

Makers awarded $1.35M after plane flies 200 miles

A Pennsylvania-based team's electric-powered plane flew a 200-mile course to win a $1.35 million prize from NASA.

Team Pipistrel-USA.com won the CAFE Green Flight Challenge and the largest award ever given by the space agency after its Taurus G4 electric airplane flew a course that began and ended at Charles M. Schulz Sonoma County Airport in Santa Rosa, Calif., in less than two hours using just a half-gallon of gas for each person aboard.

"Two years ago, the thought of flying 200 miles at 100 miles per hour in an electric aircraft was pure science fiction," Jack Langelaan, team leader of Team Pipistrel-USA.com, said in today's award announcement. "Now we are all looking forward to the future of electric aviation."

The winning aircraft featured a dual-fuselage design, ultralight 75-foot wingspan and a 6.5-foot-wide propeller powered by 450 pounds of lithium-polymer batteries.

[Might want to inquire in re: to investing in lithium-polymer battery technology...]

NASA, with sponsorship from corporations including Google, backs the contests to encourage the development of aeronautical technologies. The agency's Centennial Challenges were inspired by the $10 million Ansari X Prize for private spaceflight, which in turn was inspired by the $25,000 Orteig Prize, won by Charles Lindbergh in 1927, for nonstop trans-Atlantic aviation.
Click to expand...

http://www.nbcbayarea.com/news/tech/Electric-Plane-Wows-NASA-131038118.html
 
 
Freebies from OpenScience

The OpenScience project is dedicated to writing and releasing free and Open Source scientific software.
 
US Army to fly 'kamikaze' drones

Dubbed the "Switchblade," the robotic aircraft represents the latest attempt by the United States to refine how it takes out suspected militants.

Weighing less than two kilos, the drone is small enough to fit into a soldier's backpack and is launched from a tube, with wings quickly folding out as it soars into the air, according to manufacturer AeroVironment.

Powered by a small electric motor, the Switchblade transmits video in real time from overhead, allowing a soldier to identify an enemy, the company said in a press release last month.

"Upon confirming the target using the live video feed, the operator then sends a command to the air vehicle to arm it and lock its trajectory onto the target," it said.

The drone then flies into the "target," detonating a small explosive.
Click to expand...

More @

http://www.google.com/hostednews/af...ocId=CNG.b0b893fb04aee2445cb9d54b02462bd7.2f1
 
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