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Laser from Atomic Nuclei

22 April 2011
A laser that emits visible light using atomic nuclei, rather than electrons, could be made from a thorium alloy. It could be a first step toward a gamma-ray laser.

PRL (22 April 2011)

One-way Light

15 April 2011
A wave "diode" could use a nonlinear medium to allow light to travel in only one direction.

PRL (22 April 2011)

Fungus Spins Both Ways

8 April 2011
Two different kinds of mechanical stresses explain the unique reversal of rotation during the growth of a fungus, according to a new theory.

PRL (1 April 2011)
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