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The need for sustainable sources of energy has become more prevalent in an effort to conserve natural resources, as well as optimize the performance of wireless networks in daily life. Renewable sources of energy also help to cut costs while still providing a reliable power sources. Biologically-Inspired Energy Harvesting through Wireless Sensor Technologies highlights emerging research in the areas of sustainable energy management and transmission technologies. Featuring technological advancements in green technology, energy harvesting, sustainability, networking, and autonomic computing, as well as bio-inspired algorithms and solutions utilized in energy management, this publication is an essential reference source for researchers, academicians, and students interested in renewable or...
Just after sunset in the tiny town of Westcliffe, 147 miles south and west of Denver, two dozen people begin gathering in the Bluff, a park on the edge of town. The hilly Bluff overlooks the Wet Mountain Valley, and just a bit farther, the Sangre de Cristo mountains. But on this night, its benches, set into the park’s natural hillside, are a perfect place to look out over the valley and into the night sky. You can see ranches and grazing land dotting the valley floor miles away. At least a half dozen people are holding telescopes – the kinds that cost hundreds or even thousands of dollars and take a fair amount of muscle to carry or must be rolled on carts to haul them to just the right spot. That spot is a shed – one with wood siding that isn’t much bigger than one you might have in your back yard. When amateur astronomer Jim Bradburn flips a switch, the shed’s roof slides forward, revealing a massive telescope, complete with a large-screen TV and a computer that directs the telescope to search the sky. Bradburn is no Johnny-come-lately night sky viewer. He’s among a growing group of locals who are serious about the stars. On this particular night, at least at first, the sky doesn’t cooperate. It’s overcast, and clouds shroud the valley. Bradburn and others fiddle with the observatory telescope and the computer to find an unobstructed view. Two hours in, the clouds are still veiling the stars. By then, chimes in another, we’ll see the stars as they were meant to be seen. The clouds begin to clear and the stars come out to play. The group aims their telescopes toward the heavens, capturing views of stars with names like M11 and M13, and the Great Hercules Cluster. Cassiopeia, a gleaming W in the night sky, is brilliant, even to the naked eye. And there, behind the wisps of remaining clouds, spawls the Milky Way – a mass of stars so thick that the galaxy sometimes resembles clouds itself. On one hand, Bradburn says, when you look into a clear night sky, you feel very small beneath so many stars. On the other, he says, it feels like you can reach up and touch the entire universe. Westcliffe and adjoining town Silver Cliff are the crown jewels in the United States of a movement called Dark Sky. The international crusade seeks to make sure that future generations can see the Milky Way the way our ancestors did, before the advent of the light bulb. The valley west of Westcliffe/Silver Cliff is the best place to see stars for two reasons – the altitude, which at 8,000 feet, puts you closer to the stars than any other Dark Sky community in North America, and the attitude of the people on the... There are 14 Dark Sky communities in the world. Westcliffe/Silver Cliff is Colorado’s only certified Dark Sky community, although the state has two Dark Sky-certified parks: Hovenweep, on the Colorado/Utah border west of Durango, and the Black Canyon of the Gunnison. National media have picked up on Westcliffe/Silver Cliff stargazing scene. In the past month, locals point out, crews from the New York Times, CNN, Today Show and NBC Nightly News have trekked down to the towns (total population, just over 1,100) snuggled between the Sangre de Cristo and Wet Mountain ranges in south... The valley just west of the two towns has something unlike most other communities in the continental United States or Canada: a clear night view of the Milky Way and billions of other stars. Amy Moulton, who works in the local library, says it would be odd in these parts not to notice the stars at night. Fellow librarians Cathy McCarthy and Ted Ballard say they’ve never seen meteor showers such as those they see here – sometimes as many as 20 or 30 meteors in the span of just a few minutes. “It’s a gift,” McCarthy says. The community has taken both legal and financial steps to keep its night sky dark. The movement in Westcliffe/Silver Cliff started about 15 years ago when a local rancher, Susan “Smokey” Jack, began to notice the night sky was changing, with more light pollution bleeding from the towns as well as from Pueblo and Colorado... According to her friends in the local Dark Sky organization, she was the first to push for night-friendly lighting in the community to preserve the special view of the sky over the valley.
Street light - Wikipedia, the free encyclopedia
A street light, light pole, lamppost, street lamp, light standard, or lamp standard is a raised source of light on the edge of a road or walkway.
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