08/01/2013

French group Free lifts block on online ads

French Internet access provider Free has ceased blocking online advertising following a ministerial request, in a case that tests the relative strengths of telecommunications providers and Internet giants such as Google that ...

NASA's NuSTAR catches black holes in galaxy web

(Phys.org)—NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, set its X-ray eyes on a spiral galaxy and caught the brilliant glow of two black holes lurking inside.

Metal surface can repel electric charges

(Phys.org)—Metals are known for being good electrical conductors. Due to this property, a stationary electric point charge placed outside a metal will cause the electrons in the metal to redistribute in such a way that ...

Aerodynamic levitator allows samples to 'float on air'

To you and to me, glass is a window pane, a mirror, something to hold the claret. To scientists, however, glass is a liquid that has lost its mobility, yet keeps its memory of being a liquid.

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