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- Fuzzy future: Kids may suffer impaired vision from spending too little time outdoors, studies suggest
- Building with moon rocks: Working on the moon with lunar soil and grit could prove easier, more efficient and less costly than using earthly materials
- Major twister hits Oklahoma: Its speed, which largely determines the damage it causes, is still unknown
HINGE SELECTION
View larger image | With the help of hinges, researchers can design flat structures that self-assemble into hollow three-dimensional capsules (above, left). But deciding how to arrange the faces, and thus the two types of hinges (center), can be a challenge. Many different arrangements can fold into dodecahedrons (right), but more compact versions do so more reliably.
Source: C. Randall et al/Trends in BIotechnology 2011
Credit: From top: S. Pandey et al/PNAS 2011; Stephen Egts
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