‘Watermark ink’ device identifies unknown liquids instantly


Materials scientists and applied physicists collaborating at Harvard’s School of Engineering and Applied Sciences (SEAS) have invented a new device that can instantly identify an unknown liquid. The device, which fits in the palm of…

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First opal-like crystals discovered in meteorite


Scientists have found opal-like crystals in the Tagish Lake meteorite, which fell to Earth in Canada in 2000. This is the first extraterrestrial discovery of these unusual crystals, which may have formed in the primordial…

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