Word: silt
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...tomorrow between 4:00 p.m. and 8:00 p.m., or all of your whites may turn a lovely rust color. The FMO Fire Group will be performing the annual check of Harvard’s fire hydrants tomorrow evening, and in doing so they may knock some of the silt at the bottom of sedentary pipes back into the river houses’ waterways...
...people have died in his work group, which numbers no more than 40 laborers at one time. Some drowned during storms, while others succumbed to malaria or never came up after diving deep into the river. "The foreigners want gold," he says, squinting for yellow dust in the brown silt. "So we look for it." The equation in Asia's new Great Game is simple - and deadly...
...greater source of energy is the ocean's tides. Off the coast of New England, tides rise and fall up to 4 m twice a day. How about generating electricity from floating pistons on the ocean? Unlike dams, floating pistons would be friendly to marine life; they would not silt up bays and would be far less expensive to construct. Just north of Maine, in the Bay of Fundy, a moon tide can be 15 m. If intermittent vibrations on a bridge are being used to generate 20 microwatts to 120 microwatts, why not think bigger? Robert F. Bourque, North...
...source of energy is the ocean's tides. Off the coast of New England, tides rise and fall 8 ft. to 12 ft. twice a day. How about generating electricity from floating pistons on the ocean? Unlike dams, floating pistons would be friendly to marine life; they would not silt up bays and would be far less expensive to construct. Just north of Maine, in the Bay of Fundy, a moon tide can be 50 ft. If intermittent vibrations on a bridge are being used to generate 20 microwatts to 120 microwatts, why not think bigger...
...mention the dam poses significant sedimentation risks in addition to being vulnerable to tectonic and seismic activity. The lessons that can be learned from the Three Gorges Dam have led me to view China’s new $60 billion project directing Yangtze River water to the silt-choked Yellow River with a very cautious...