Tuesday, 21 November 2017

Nano-watch has steady hands

A new nanomechanical hand shows the time of an electronic clock, by spinning a tiny cylinder using light. A silicon nanorod, less than a thousandth of a millimetre long, can be trapped in thin air using focused laser beams, and spun to follow the ticking of a clock, losing only one-millionth of a second over four days.

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Scientists produce high-power attosecond X-ray pulses at megahertz repetition rates

A research team has achieved a major advance in X-ray science by generating unprecedented high-power attosecond hard X-ray pulses at megaher...