Polycyclic aromatic hydrocarbons, toxic air pollutants produced by combustion, are linked to lung cancer and other serious health problems. Recent findings suggest that these tiny particles travel long distances and significantly increase overall health risks.
This year's Nobel Prize in Chemistry was awarded to three scientists who developed a way to see the world at an even smaller scale. But even though our ability to see into the "nano-dimension" is new, the use of nanotechnology is older than you might think.
When certain cells are deprived of oxygen, they do surprising things — including morphing part of themselves into a long wire and breathing rocks. It may sound weird, but it's true, and it could help develop new technologies.
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