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Features

The Quest for the Superlens

Built from "metamaterials" with bizarre, controversial optical properties, a superlens could produce images that include details finer than the wavelength of light that is used

By John B. Pendry and David R. Smith

CSI: The Reality

Attorneys, investigators and educators have felt the impact of television's popular forensics programs

By Max M. Houck

What Birds See

Evolution has endowed birds with a system of color vision that surpasses that of all mammals, including humans

By Timothy H. Goldsmith

A Power Grid for the Hydrogen Economy

Cryogenic, superconducting conduits could be connected into a "SuperGrid" that would simultaneously deliver electrical power and hydrogen fuel

By Paul M. Grant, Chauncey Starr and Thomas J. Overbye

A Farewell to Keywords

The reigning obsession with search technology has elicited new ways of using images to track down information on the Web

By Gary Stix

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