04/06/2007

Duetting birds with rhythm present a greater threat

Birds that sing duets with incredible rhythmic precision present a greater threat to other members of their species than those that whistle a sloppier tune, according to a study of Australian magpie-larks reported in the ...

Aluminum foil lamps outshine incandescent lights

Researchers at the University of Illinois are developing panels of microcavity plasma lamps that may soon brighten people’s lives. The thin, lightweight panels could be used for residential and commercial lighting, and ...

Microswimmer propels itself with near-zero friction

Scientists have found that a very slender micro-sized swimmer can propel itself without friction by surface treadmilling. The microswimmer moves by generating backward surface motion at the front end of itself, which is then ...

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