Archive: 05/15/2012

A supernova cocoon breakthrough

(Phys.org) -- Observations with NASA's Chandra X-ray Observatory have provided the first X-ray evidence of a supernova shock wave breaking through a cocoon of gas surrounding the star that exploded. This discovery ...

dateMay 15, 2012 in Astronomy
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19th-century iPhone app

Modern technology has allowed us to communicate in ways that would have been unfathomable to Victorian-age English poets. Yet Alfred Tennyson, Lewis Carroll and Edgar Allan Poe — among others — would ...

dateMay 15, 2012 in Software
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Spurious switching points in traded stock dynamics

Physicists have rebuffed the existence of power laws governing the dynamics of traded stock volatility, volume and intertrade times at times of stock price extrema. They did this by demonstrating that what appeared as "switching ...

dateMay 15, 2012 in Mathematics
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