TOP 100 CAMPING SITES
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| A Strip Full of Junk Awaits the Brooms Illegal dumping between Sunnyside Gardens Park and Barnett Avenue has long been a problem, and a neglected one. nytimes.com |
Subways Loudest Transit Option in NYC [The following is an exact transcript of this podcast.]“Stand clear of the closing doors please.” Definitely keep your arms and legs away from the closing doors on the subway. But there’s a potentially more insidious danger to your health: the noise. [More] rss.sciam.com |
New Facebook application helps you bum a ride More than 150 million people log on to Facebook every day. Many users share photos--or what they last ate--with old friends; others play Scrabble. Now, some are even catching a ride to school or work via the site. [More] rss.sciam.com |
Is birth control the answer to environmental ills? Population growth , now at roughly 78 million extra people per year, is the don't-go-there zone of modern environmentalism and political discourse. [More] rss.sciam.com |
Wind Farmers Go To School On Fish The use of wind power continues to soar around the world. In 2008 the U.S. actually surpassed Germany as the world’s top producer of energy from wind. It might seem that there aren’t many improvements to make to what’s essentially a passive technology. But researchers at the California Institute of Technology say the way fish school will help create more efficient designs for wind farms. They presented their research at a meeting of the American Physical Society’s Division of Fluid Dynamics.When fish swim, they leave little swirling vortices in their wake. By swimming together in a school, they can transfer energy to one another through these vortices. Wind behaves much as a liquid does. So the engineers have taken wind turbines that spin on vertical axes--these are different from the traditional horizontal wind turbine mostly in use today. On a computer, they’ve positioned the turbines close enough together that as one spins, it then directs the wind to its neighbor. [More] rss.sciam.com |