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1.
Synopsis

Bouncing in a Spacetime Ripple

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Published February 14, 2013
Microparticles suspended in an optical cavity may be a new way to detect gravity waves.
2.
Viewpoint

Flipping a photonic shock wave

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Shuang Zhang and Xiang Zhang, Physics 2, 91 (2009) – Published November 2, 2009
Čerenkov radiation with the emission cone reversed has been observed in a metamaterial with negative refractive index.
3.
Focus

Lasers Provide Antimatter Bonanza

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Phys. Rev. Focus 23, 8 (2009) – Published March 13, 2009
A research team used a laser to produce large amounts of anti-electrons, opening up new possibilities for research on exotic astrophysical objects.