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Genghis Khan, History's Greenest Conqueror 279

Posted by samzenpus
from the taking-the-good-with-the-bad dept.
New research suggests that in addition to being one of history's cruelest conquerors, Genghis Khan may have been the greenest. It is estimated that the Mongol leader's invasions unintentionally scrubbed almost 700 million tons of carbon from the atmosphere. From the article: "Over the course of the century and a half run of the Mongol Empire, about 22 percent of the world's total land area had been conquered and an estimated 40 million people were slaughtered by the horse-driven, bow-wielding hordes. Depopulation over such a large swathe of land meant that countless numbers of cultivated fields eventually returned to forests. In other words, one effect of Genghis Khan's unrelenting invasion was widespread reforestation, and the re-growth of those forests meant that more carbon could be absorbed from the atmosphere." I guess everyone has their good points.
Space

Video Showing Half a Million Asteroid Discoveries 154

Posted by CmdrTaco
from the final-frontier dept.
An anonymous reader writes "Since 1980 over a half million asteroids have been discovered, mostly between the orbits of Mars and Jupiter, now thanks to this video you can see this activity condensed into a few minutes. At full resolution it's a mesmerizing experience as new discoveries are added and the video makes it possible to see patterns in the discovery positions, for example a large number appear in line between Earth and Jupiter as astronomers started looking for smaller jovian moons after Voyagers visit to the system."
Science

Canon Unveils 120-Megapixel Camera Sensor 289

Posted by CmdrTaco
from the that's-a-lotta-bits dept.
Barence writes "Canon claims to have developed a digital camera sensor with a staggering 120-megapixel resolution. The APS-H sensor — which is the same type that is used in Canon's professional EOS-1D cameras — boasts a ridiculous resolution of 13,280 x 9,184 pixels. The CMOS sensor is so densely packed with pixels that it can capture full HD video on just one-sixtieth of the total surface area. However, don't hold your breath waiting for this baby to arrive in a camera. Canon unveiled a 50-megapixel sensor in 2007, but that's not made it any further than the labs to date." It's probably not going too far out on a limb to say that the any-day-now rumored announcement of an update to the 1D won't include this chip, but such insane resolution opens up a lot of amazing possibilities, from cropping to cheap telephoto to medium and large format substitution. Maybe I should stop fantasizing about owning a full-frame 1D or 5D and redirect my lust towards 120 megapixels.
AMD

AMD Details Upcoming Bulldozer Architecture 234

Posted by CmdrTaco
from the summon-bob-the-builder dept.
Vigile writes "AMD is taking the lid off quite a bit of information on its upcoming CPU architecture known as Bulldozer that is the first complete redesign over current processors. AMD's lineup has been relatively stagnant while Intel continued to innovate with Nehalem and Sandy Bridge (due late this year) and the Bulldozer refresh is badly needed to keep in step. The integrated north bridge, on-die memory controller and large shared L3 cache remain key components from the Athlon/Phenom generation to Bulldozer but AMD is adding features like dual-thread support per core (but with a unique implementation utilizing separate execution units for each thread), support for 256-bit SIMD operations (for upcoming AVX support) all running on GlobalFoundries 32nm SOI process technology."

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