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Paper Strikes Back: Defending Books, Mail and Dollar Bills
from Scientific American
WASHINGTON (Reuters) - Crumple it, drench it, lock it in a hot attic or a damp cellar but paper can come back to life.
It is doing so now, after taking a battering from environmentalists, the Internet and a glum economy. Paper partisans are pushing back, defending greenbacks as preferable to dollar coins, physical mail as hacker-proof and turning-page books as more permanent than digital formats.
Even some environmental objections to paper have turned around as companies work with green groups to foster recycling and grow sustainable forests.
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PODCAST & VIDEO: 3D Printing Replacement Body Parts
Regenerative medicine, a fledgling field with the aim of regrowing parts from a person’s own cells, is being amplified with 3D-printing technology, which can now use organic materials to create scaffolds that cells need to grow into their final forms. Richard Wysk, a professor of industrial and systems engineering at North Carolina State University, discusses the latest successes with this research, and the timeline for creating more complicated structures.
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