13 May '13, 1pm

I didn't think it was possible to go faster than the speed of light, but--it is.

I didn't think it was possible to go faster than the speed of light, but--it is.

Researchers at the Missouri University of Science & Technology have designed a new nanoscale material that can transmit light -- at least its phase front -- faster than the 186,000 miles per second it usually takes to go through air. That speed through air, or through the vacuum in outer space, is what we usually think of as the speed of light. But light travels at different speeds depending on the material it is passing through. The metric for expressing this difference is the effective permittivity of light: the ratio of light's speed through air to its speed when passing through another material. Its effective permittivity is 1.0 when passing through air. When passing through glass, effective permittivity is 2.25. What's new about this new material is that it's achieved an effective permittivity of zero. The ratio is called epsilon-near-zero, but it's essentially zero, ...

Full article: http://www.designnews.com/author.asp?section_id=1392&doc_...

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