Word: asphalt
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Dates: during 2000-2009
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...coyotes have loped off, and the rattlesnakes have crawled under the construction trailers for shade and safety. Bulldozers have scraped away the mesquite to make a board-flat rectangle 10,000 ft. by 200 ft. Workers have begun putting down layers of gravel, packed earth, asphalt and concrete 42 in. thick to form a runway. The age of space tourism is here...
...nickel and cobalt will sail to China.) Last December, Ramu NiCo unveiled the first-ever bridge over the Ramu River, eliminating the need for a perilous canoe crossing. The company also paved a ribbon of concrete through the forest, one of the few roads in a tropical country where asphalt is almost as rare as snow. Although the project has displaced thousands of landowners, it has also provided badly needed infrastructure to the area. What just a few years ago was a 10-hour bush walk from the mine site to the river has now been...
With tens of thousands of electric vehicles, or EVs, expected to hit U.S. asphalt over the next 10 years, Gallagher's idea of rebuilding tattered ribbons of country road is gaining traction. The initial concept of the green corridor may not be new - it started years ago with makeovers of abandoned rail beds to create scenic bike paths, often called "rails to trails" programs - but no state has yet created a comprehensive green-highway system designed to accommodate the electric-powered cars of the future...
...American coal-fired power plants produce 130 million tons of fly ash every year. Industry reuses some of it for asphalt, cement, and brick manufacture, but 57 percent of fly ash is disposed of in hundreds of landfills across the country. Astonishingly, the Environmental Protection Agency does not regulate fly ash, which contains arsenic, lead, mercury, and uranium, as a hazardous material. It recommends that coal plants store fly ash in insulation-lined landfills to prevent leakage but has no mandate to actually enforce this suggestion...
...animal's weight. "That means they can lose height, and gaining height again is costly because you have to oppose gravity," points out Thorpe. When an orangutan leaps from a flexible branch it also loses motion energy - think of jumping off a pile of sand versus one of asphalt - and when they land on a flexible branch, they have to wait for the vibrations to stop before they can jump again, which costs more time...