20/12/2013

Chickless birds guard nests of relatives

(Phys.org) —New research has solved a mystery as to why some birds choose not to reproduce, and instead help to guard the nests of their close relatives. This occurs in about nine percent of all bird species.

Effect of ocean temperature on southwestern US climate analyzed

Researchers have analyzed the relationship between a natural phenomenon in the North Atlantic and the temperature and precipitation patterns in the American Southwest. They concluded that only part of the recent temperature ...

Producing electricity on the moon at night

Scientists from the Polytechnic University of Catalonia and other international collaborators have proposed a system of mirrors, processed lunar soil and a heat engine to provide energy to vehicles and crew during the lunar ...

Electric fields can push droplets from surfaces

Researchers at MIT have followed up on their discovery that droplets of water acquire an electric charge when jumping from certain condenser surfaces by finding a way to make use of that effect: They found that by applying ...

The beat goes on with a new model for artificial flagella

(Phys.org) —Eukaryotic flagella, whip-like organelles that elegantly propel microorganisms and pump fluid, seem to embody simplicity on the microscopic scale. But appearances can be deceptive: Flagella are composed of 650 ...

Videos highlight impact of Mongolian mining

The dramatic expansion of Mongolian mine sites from initial diggings to their present size has been captured using satellite imagery for the first time by researchers at The University of Queensland's Sustainable Minerals ...

How math helps stop oil spills and plane crashes

Jason Merrick, Ph.D., says that his daughters tell people that their father stops oil spills, plane crashes and terrorist attacks with math. That's one way to describe Merrick's research, which at its core involves developing ...

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