News tagged with dam
World's biggest beaver dam discovered in northern Canada
A Canadian ecologist has discovered the world's largest beaver dam in a remote area of northern Alberta, an animal-made structure so large it is visible from space.
May 06, 2010 |
4.9 / 5 (26) |
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Japan eyes solar station in space as new energy source
It may sound like a sci-fi vision, but Japan's space agency is dead serious: by 2030 it wants to collect solar power in space and zap it down to Earth, using laser beams or microwaves.
Technology / Energy & Green Tech
Nov 08, 2009 |
4.8 / 5 (24) |
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Small dams, big impact on Mekong River fish: study
Plans to build hydropower dams along small branches of southeast Asia's longest river could have a devastating impact on millions of people who rely on the world's largest inland fishery, scientists said Monday.
Mar 05, 2012 |
5 / 5 (2) |
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Governments must plan for migration in response to climate change, researchers say
Governments around the world must be prepared for mass migrations caused by rising global temperatures or face the possibility of calamitous results, say University of Florida scientists on a research team reporting in the ...
Oct 27, 2011 |
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'Sensing skin' could monitor the health of concrete infrastructure continually and inexpensively
In 2009, the American Society of Civil Engineers (ASCE) assigned the grade "D" to the overall quality of infrastructure in the U.S. and said that ongoing evaluation and maintenance of structures was one of ...
Jun 29, 2011 |
4.3 / 5 (3) |
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Large dams can affect local climates, says new study
(PhysOrg.com) -- Large dams could have the potential to significantly alter local rainfall in some regions, according to a team of researchers including Roger Pielke Sr., of the Cooperative Institute for Research in Environmental ...
Feb 10, 2011 |
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America's new wonder: a record-breaking bridge
America's greatest technological achievement, the Hoover Dam, now has a soaring companion piece, a massive looming bridge held up by the longest arch in the Western Hemisphere.
Oct 17, 2010 |
3.7 / 5 (9) |
16
New research questions hydroelectric emissions
Scientists have found that some reservoirs formed by hydroelectric dams emit more greenhouse gases than expected, potentially upsetting the climate-friendly balance of hydroelectric power.
Oct 11, 2010 |
3 / 5 (8) |
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Manure could fuel data centers, HP scientists say
Giving new meaning to the term "server farm," a team of Hewlett-Packard researchers has come up with a plan for combining cow chips and computer chips to build an environmentally friendly data center -- powered ...
Technology / Energy & Green Tech
May 19, 2010 |
3.8 / 5 (5) |
5
New system helps explain salmon migration
A new acoustic telemetry system tracks the migration of juvenile salmon using one-tenth as many fish as comparable methods, suggests a paper published in the January edition of the American Fisheries Society ...
Jan 08, 2010 |
5 / 5 (1) |
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Toxic legacy seeps from melting Alpine glaciers: study
Swiss researchers have found that Alpine glaciers melting under the impact of climate change are releasing highly toxic pollutants that had been absorbed by the ice for decades.
Oct 14, 2009 |
3.7 / 5 (12) |
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China says planning more dams on troubled Yangtze
China will build at least 20 more reservoirs or hydroelectric projects in the Yangtze river system by 2020, the government said Tuesday, despite growing concerns over dam construction there.
Apr 21, 2009 |
4.5 / 5 (2) |
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Climate change means shortfalls in Colorado River water deliveries
The Colorado River system supplies water to tens of millions of people and millions of acres of farmland, and has never experienced a delivery shortage. But if human-caused climate change continues to make ...
Apr 20, 2009 |
4.7 / 5 (27) |
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Turning the tide to energy
NASA researchers who developed a new way to power robotic underwater vehicles believe a spin-off technology could help convert ocean energy into electrical energy on a much larger scale. The researchers hope ...
Mar 06, 2009 |
3.3 / 5 (23) |
6
Quagga mussels are clogging Hoover Dam, colonizing lakes and rivers
It took some of America's best engineers, thousands of laborers and two years of around-the-clock concrete pouring to build the 726-foot-high Hoover Dam back in the 1930s. It took less time than that for the tiny, brainless ...
Mar 02, 2009 |
2.7 / 5 (3) |
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Dam
A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are often used in conjunction with dams to provide clean electricity for millions of consumers.
For more information about Dam, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
