The assumption has been that as computer chips get smaller, the need for new production equipment becomes more urgent. Not so, according to National Institute of Standards and Technology (NIST) researchers. Current equipment uses 193-nm wavelength light. However, immersion lithography uses a thin layer of water like a lens to shorten the effective wavelengths of ultraviolet light, enabling the same equipment to create features as small as 45 nm. For more info, visit www.nist.gov/public_affairs/techbeat/current.htm#water.
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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