Affordable HD-DVD players are one potential payoff from a simpler process for making semiconductor lasers.
A comprehensive project to catalogue all the birds in North America has identified what may be 15 new species.
An intelligent video system in an Arkansas bayou searches for an elusive bird.
A small, powerful rope-climbing device can pull a person up 30 stories in 30 seconds.
A new laser design helps create usable terahertz radiation, which penetrates common materials but doesn't harm tissue.
Two scientists think that social networks can improve disaster relief.
Cell-phone users can now make the ultimate long-distance call: to friends in the virtual world.
By measuring nanoscale forces, researchers learn to make lithium-ion batteries that pull themselves together.
Scientists plan to test an implanted chip with four times the resolution of the previous version in people blinded by retinal degeneration.
A 15-nanometer-thick porous silicon membrane could lead to microfluidics filters and make protein purification and blood dialysis more efficient.