Three’s company: researchers at Harvard University have trapped individual triatomic molecules. (Courtesy: iStock/Emilija Randjelovic) Individual polyatomic molecules have been trapped in arrays of ...

Red light stop: The experiment uses multiple frequencies of light to cool the CaOH atoms to a fraction of a degree above absolute zero. (Courtesy: John Doyle) Physicists in the US have created ...

IT is now becoming more widely realized that infrared spectroscopy has grown into a powerful new method for analysis and structural diagnosis, and as such it must be used by many who have hitherto had ...

Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, Vol. 128, No. 807 (Jul. 1, 1930), pp. 294-316 (23 pages) ...