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It's a Small, Small, Small, Small World
from the Scientific American
Scientific American presents a slide show of this year's 20 winning pictures from the Nikon Small World contest, along with captions describing what you're seeing and how the image was obtained.
The judges' task was to sit in a dimly lit room and try to rank the hundreds of entries—images taken by professional and amateur scientists around the world using visible-light microscopes.
... There were lots of diatoms—tiny single-celled algae—sometimes painstakingly arranged to look like common objects. There were also lots of insects, and some brain scans. But there were also rocks and other man-made items that had never been "alive."
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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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