One millions nanotubes could fit into this period.
They're in products everywhere...but could they be dangerous?
Supporters say nanotechnology someday will allow doctors to hunt down cancers early, computers to shrink small enough to fit inside blood vessels, and soldiers to fight less deadly wars. These infinitesimally small devices are already in a variety of products, including power tennis rackets and wrinkle-free dress shirts. (Full article: 857 words)
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