Voiding defects: New technique makes LED lighting more efficient

Light-emitting diodes (LEDs) are an increasingly popular technology for use in energy-efficient lighting. Researchers from North Carolina State University have now developed a new technique that reduces defects in the gallium ...

Magnetic attraction for fish, crabs?

Super-sized electromagnetic coils are helping explain how aquatic life might be affected by renewable energy devices being considered for placement along America's coastal waters and in the nation's rivers.

Technology in the extreme

Radio transmitters that can withstand temperatures of up to 900 C could soon be dropped into the depths of the earth to provide early warning of a volcanic eruption.

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