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News tagged with gravel

Iran, Iraq pay $1.2 bn to battle sandstorms

A top Iranian environment official said on Monday Tehran and Baghdad will jointly pay $1.2 billion in a project to reduce the number of sand dunes in a bid to cut the number of sandstorms from Iraq.

Space & Earth / Environment

created Oct 03, 2011 | popularity 5 / 5 (1) | comments 1

Rural road maintenance may accidentally push spread of invasive plants

Road maintenance may accidentally spread the seeds of invasice plants, according to Penn State researchers.

Biology / Ecology

created Aug 09, 2011 | popularity 5 / 5 (1) | comments 0

'Thermal pollution' in rivers not fully mediated by gravel augmentation

Although adding gravel to a river to replace lost sediments won't likely cool the whole river channel, it can create cool water refuges that protect fish from thermal pollution, according to a U.S. Forest Service Pacific ...

Space & Earth / Environment

created Jun 08, 2011 | popularity 5 / 5 (1) | comments 0

Scientists explore the physics of bumpy roads

sand or gravel or snow -- develops ripples that make driving a very shaky experience. A team of physicists from Canada, France and the United Kingdom have recreated this "washboard" phenomenon in the lab with ...

Physics / General Physics

created Jul 07, 2009 | popularity 3.5 / 5 (4) | comments 2

On gravel roads, people drive at speed they are comfortable with, regardless of posted limit

Kansas gravel roads have varying speed limits, but a study by Kansas State University researchers shows that instead of abiding by those limits, people are more likely to use their own judgment to gauge how ...

Other Sciences / Other

created Apr 10, 2009 | popularity 3.2 / 5 (5) | comments 2