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Science

+ - The mystery of the shrunken proton->

Submitted by
gbrumfiel
gbrumfiel writes "The proton is behaving badly. When measured with electrons it is 0.87 femtometers in radius, but when measured with muons, the heavier cousin of the electron, it appears to be only 0.84 femtometers. 0.00000000000003 millimetres isn't much, but it's still bigger than the error bars on either measurement. The discrepancy first popped up in 2010, and at the time, most physicists thought that an error would explain it. But new results published in this week's issue of Science (paper, sub required) show the same discrepancy. Worse still, researchers have spent three years looking for a mistake in their equations and come up with zilch. Could it be that muons and electrons interact with protons in a fundamentally different way?"
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The Almighty Buck

+ - Startup brings algorithmic trading to the masses->

Submitted by macson_g
macson_g writes "Algorithmic and High-frequency trading seems to be hated by the geek community. This may change with Quantopian, a new service allowing anyone with programming skills to try algo trading from home.

High frequency trading has been scrutinized in recent years because of its links to financial scares like the Flash Crash. But the actual algorithms used to power much of high frequency trading are not well understood, and locked up in hedge funds and large financial firms. Startup Quantopian, which is coming out of beta today, aims to make these algorithms available to a much larger audience.

"
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Linux

+ - Half Life is now available natively on Steam for Linux->

Submitted by Conzar
Conzar writes "I loaded up my steam client for Linux tonight and found a pleasant surprise waiting in my library to be downloaded. That's right, one of the greatest FPS's in history, Half Life. I downloaded the game which didn't take any time at all. I fired it up, configured my options (max res is 1920x1080) and played the first 10 minutes of the game without any problems!

For those that have Ubuntu, Steam, and have Half Life (Beta) in their library, its a must play even if the game is over 10 years old."
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Transportation

+ - Peugeot Citroen to introduce compressed air hybrid by 2016->

Submitted by cylonlover
cylonlover writes "With a few exceptions, such as Volvo’s Air Motion Concept, major automotive manufacturers have generally shied away from compressed air technology. PSA Peugeot Citroen is bucking this trend with its “Hybrid Air” powertrain that addresses the limited range of compressed air energy storage technology by combining it with a gasoline powered internal combustion engine (ICE). The company plans to have Hybrid Air powered vehicles on the road by 2016."
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