Scientists have created a device with bizarre electromagnetic properties—but so far, only at microwave frequencies. (p. 198)

Investigators used ordinary integrated-circuit fabrication techniques to pattern arrays of silicon-based transistors onto a flat, deformable sheet of plastic. (p. 133)

Radioactivity creates electric fields that wiggle a tiny lever. (p. 125)

Some types of bacteria living in seafloor mud can generate enough electricity to power small electronic devices. (p. 21)

A simple mechanical means of embossing silicon may offer an alternative to conventional chip-making methods. (p. 390)

A new type of miniaturized rocket may bring microspacecraft one step closer to reality. (p. 398)

A new holographic technique may someday enable doctors to skip certain biopsies and choose instead to take video excursions inside suspicious growths in skin or internal body linings. (p. 309)

A novel laser on a microchip emits a band of light rather than the single, pure color usually expected from a laser. (p. 115)

A tiny chain with links the size of biological cells offers a new way to deliver power to micromachines. (p. 102)

Made from alternating bands of different semiconductors, a new type of superthin wire incorporates working electronic and optical devices within the wire itself, raising the prospect of making extremely tiny and versatile circuits from the striped filaments. (p. 83)