News tagged with gravel
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 ...
Apr 10, 2009 |
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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 ...
Jul 07, 2009 |
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A new direction for game controllers: Prototypes tug at thumb tips to enhance video gaming
University of Utah engineers designed a new kind of video game controller that not only vibrates like existing devices, but pulls and stretches the thumb tips in different directions to simulate the tug of ...
Mar 05, 2012 |
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'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 ...
Jun 08, 2011 |
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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.
Aug 09, 2011 |
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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.
Oct 03, 2011 |
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