23/05/2011

Survey reports 2010/2011 winter honey bee losses

Total losses from managed honey bee colonies nationwide were 30 percent from all causes for the 2010/2011 winter, according to the annual survey conducted by the U.S. Department of Agriculture (USDA) and the Apiary Inspectors ...

Robots show the evolution of altruism

Scientists in Switzerland have pieced together the puzzle on the evolution of unselfish behaviour. They simulated genetic evolution over hundreds of generations by using simple robots, providing evidence of kin selection. ...

Novel man-made material could facilitate wireless power

Electrical engineers at Duke University have determined that unique man-made materials should theoretically make it possible to improve the power transfer to small devices, such as laptops or cell phones, or ultimately to ...

Cheaper, greener, alternative energy storage at Stevens

Every year, the world consumes 15 Terrawatts of power. Since the amount of annual harvestable solar energy has been estimated at 50 Terrawatts, students at Stevens Institute of Technology are working on a supercapacitor that ...

Chemical engineers invent portable hydrogen reactor for fuel cells

Chemical Engineering students at Stevens Institute of Technology are transforming the way that American soldiers power their battery-operated devices by making a small change: a really small change. Capitalizing on the unique ...

Earth's past, made visible

New visualizations of the Earth from space provide a unique image of how the Earth has changed over the past 750 million years.

Small bangs and white holes

Most gamma-ray bursts come in two flavors. Firstly, there are long duration bursts which form in dense star-forming regions and are associated with supernovae – which would understandably generate a sustained outburst ...

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