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Jumpy Stars Slow the Hunt for Other Earths

The Kepler spacecraft has hit an unexpected obstacle as it patiently watches the heavens for exoplanets: too many rowdy young stars. The orbiting probe detects small dips in the brightness of a star that occur when a planet crosses its face. But an analysis of some 2,500 of the tens of thousands of Sun-like stars detected in Kepler's field of view has found that the stars themselves flicker more than predicted, with the largest number varying twice as much as the Sun

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A Signal for Solitude: Monkeys Create Their Own Rudimentary Language Sign

The Colchester Zoo in England is home to a community of mandrills, the largest of the monkeys. One of these mandrills, a female named Milly, began covering her eyes with her hand when she was three. A dozen years later Milly and her zoo mates continue to perform this gesture, which appears to mean “do not disturb.” The signal is the first gesture with cultural roots reported in monkeys

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Mapping The Clean-Tech Economy

What's up with all those green-collar jobs we keep being promised? A new report shows they aren't necessarily where you would think they'd be.

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July 2011 Advances: Additional resources

The Advances section of Scientific American 's July issue chronicles tree-saving tortoises, the largest spider fossil ever discovered, an update on the hunt for dark matter, and many other developments. For those interested in learning more about the news described in the section, a list of selected further reading follows below. "Tortoises to the Rescue," page 16 [More]

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Master Paintings Week

London is home to the largest number of Old Master paintings dealers in the world, and the city celebrates its abundance with Master Paintings Week taking place July 1–8. Almost two dozen galleries, many British-based, some not, will participate in this third edition of the event.

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26 terabits per second: World record in ultra-rapid data transmission

German scientists of Karlsruhe Institute of Technology have succeeded in encoding data at a rate of 26 terabits per second on a single laser beam, transmitting them over a distance of 50 km, and decoding them successfully. This is the largest data volume ever transported on a laser beam. The process developed by KIT allows to transmit the contents of 700 DVDs in one second only.

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The 10 Most Innovative Companies in Transportation

01 / Nissan > > For creating the Leaf, the first mass-market, all-electric car. To make the switch from gas to electricity easier, Nissan is working with electric companies and cities, such as Houston, to build public charging networks.

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Whales Return to NYC Harbor

[audio of blue whale song] That's the song of the blue whale, the largest animal on the planet . It's been sped up five [OR: 30] times faster so that our ears can hear it. In reality, these infrasound songs were captured in 2009, off the coast of… Long Island

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Radiation Exposure from Many Sources

Japan's Fukushima Daiichi nuclear reactor accident has focused new attention on how much ionizing radiation people are exposed to from different sources (see list below). By far the largest source is medical imaging technology (see " Graphic Science: Exposed " in the May 2011 issue). Americans, on average, are exposed to 3.1 millisieverts of radiation a year from natural background factors such as radon gas from the Earth and cosmic rays from the universe

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Boating: Taking the Cake

With its launch of Cakewalk last August, Derecktor Shipyards set the record for the largest U.S.-built yacht by volume. At 281 feet, the six-deck motor yacht—which displaces an astonishing 2,998 gross tons of water—is also the longest American-made yacht since J.P.

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