30/07/2007

Archaeologist uncover possible medieval mosque in Sicily

Earlier this summer, while standing in an archaeological pit adjacent to an ancient hilltop castle in west-central Sicily, Northern Illinois University graduate student Bill Balco could literally reach out and touch the centuries—even ...

Engineers building robotic fin for submarines

Inspired by the efficient swimming motion of the bluegill sunfish, MIT researchers are building a mechanical fin that could one day propel robotic submarines.

Researchers find pathway that controls cell size and division

Organisms precisely regulate cell size to ensure that daughter cells have sufficient cellular material to thrive or to create specific cell types: a tiny sperm versus a gargantuan egg for example. In single-celled organisms ...

Review finds potential flaws in voting systems

Flaws that leave electronic voting machines vulnerable to security attacks were discovered by University of California researchers as part of an unprecedented "Top-to-Bottom Review" of the systems commissioned by California ...

Rare Example of Darwinism Seen in Action

A research team of biologists has found experimental evidence that supports a controversial theory of genetic conflict in the reproduction of those animals that support their developing offspring through a placenta.

NASA Starts Space Shuttle Endeavour Countdown Aug. 4

NASA will start the launch countdown for space shuttle Endeavour's STS-118 mission at 9 p.m. EDT Saturday, Aug. 4, at T-43 hours. The countdown includes 27 hours, 3 minutes of built-in hold time leading to a preferred launch ...

Fruit bats discovered to have menstrual cycles

They say their findings – published in this month's issue of key journal Biology of Reproduction - could lead to bats being studied by researchers trying to understand human menstrual problems and other reproductive disorders.

Wider buffers are better

Excess nitrogen caused by fertilizers, animal waste, leaf litter, sewer lines, and highways is responsible for contaminating groundwater. It can also cause human health risks when found in drinking water and oxygen depleted ...

Astronomers unveil new type of active galaxy

An international team of astronomers using NASA’s Swift satellite and the Japanese/U.S. Suzaku X-ray observatory has discovered a new class of active galactic nuclei (AGN).

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