Virtudes Prusianas

VIRTUDES PRUSIANAS (Brandenburgo-Prusia, Alemania):
Perfecta organización * Sacrificio * Imperio de la ley * Obediencia a la autoridad * Militarismo * Fiabilidad * Tolerancia religiosa * Sobriedad * Frugalidad * Pragmatismo * Puntualidad * Modestia * Diligencia

jueves, 25 de julio de 2013

Científicos detienen la luz por un eterno minuto...

Light completely stopped for a record-breaking minute - physics-math - 25 July 2013 - New Scientist

To break the minute barrier, George Heinze and colleagues at the University of Darmstadt, Germany, fired a control laser at an opaque crystal, sending its atoms into a quantum superposition of two states. This made it transparent to a narrow range of frequencies. Heinze's team then halted a second beam that entered the crystal by switching off the first laser and hence the transparency.

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