Tracking down toxic metals from tobacco smoke

Cigarette smoke has been studied for years, revealing a multitude of contaminants, including toxic metals. But exactly which of those metals can be traced to secondhand or thirdhand smoke?

'Nano stitches' enable lighter and tougher composite materials

To save on fuel and reduce aircraft emissions, engineers are looking to build lighter, stronger airplanes out of advanced composites. These engineered materials are made from high-performance fibers that are embedded in polymer ...

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