Nanoscale machines convert light into work

Researchers have developed a tiny new machine that converts laser light into work. These optically powered machines self-assemble and could be used for nanoscale manipulation of tiny cargo for applications such as nanofluidics ...

The world's shortest laser pulse

ETH researchers succeeded in shortening the pulse duration of an X‑ray laser to only 43 attoseconds. With a time resolution in the range of a few quintillionths of a second, they are now able for the first time to observe ...

Researchers harness the sun to produce hydrogen gas from water

A team of chemistry researchers at the University of North Carolina at Chapel Hill has developed a unique approach to harnessing the sun's energy to produce hydrogen gas, a potential clean energy source, from water, according ...

New forensic technique for analysing lipstick traces

(Phys.org) —A study by forensic scientists at the University of Kent has established a new way of identifying which brand of lipstick someone was wearing at a crime scene without removing the evidence from its bag, thereby ...

Chemists' HAT trick for greener chemical synthesis

Creating new chemical compounds, such as new drugs, is not as simple as assembling one of those models with colored balls and sticks you might have seen in a beginning chemistry class. No, it's often a complex process with ...

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