19/02/2014

A step closer to a photonic future

The future of computing may lie not in electrons, but in photons – that is, in microprocessors that use light instead of electrical signals. But these so-called photonic devices are typically built using customized methods ...

Chemical leak in W.Va. shows gaps in research, policy

The chemical leak that contaminated drinking water in the Charleston, W.Va., area last month put in sharp relief the shortcomings of the policies and research that apply to thousands of chemicals in use today. An article ...

Clouds seen circling supermassive black holes (w/ video)

Astronomers see huge clouds of gas orbiting supermassive black holes at the centers of galaxies. Once thought to be a relatively uniform, fog-like ring, the accreting matter instead forms clumps dense enough to intermittently ...

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