Slippery Material System Can Start, Stop Liquids
News 4/17/2013 14 comments A new material system invented by researchers at Harvard's Wyss Institute for Biologically Inspired Engineering is continuously "tunable" for transparency and wettability: it repels water or oil to a greater or lesser degree as it becomes more or less transparent.
Can EV Batteries Last 20 Years?
News 4/12/2013 45 comments Lithium-ion batteries for electric cars may last far longer than we’ve been led to believe, a battery expert told the American Chemical Society in a speech this week.
A make-your-own Star Wars Sith Lightsaber hilt is heftier and better-looking than most others out there, according to its maker, Sean Charlesworth. You can 3D print it from free source files, and there's even a hardware kit available -- not free -- so you can build one just in time for Halloween.
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