American Transportation statistics - How United States ranks Definitions Airports > With paved runways > 1,524 to 2,437 m: This entry is derived from Transport > Airports > With paved runways, which gives the total number of airports with paved runways (concrete or asphalt surfaces) by length. For airports with more than one runway, only the longest runway is included according to the following five groups - (1) over 3,047 m (over 10,000 ft), (2) 2,438 to 3,047 m (8,000 to 10,000 ft), (3) 1,524 to 2,437 m (5,000 to 8,000 ft), (4) 914 to 1,523 m (3,000 to 5,000 ft), and (5) under 914 m (under 3,000 ft). Only airports with usable runways are included in this listing. Not all airports have facilities for refueling, maintenance, or air traffic control. Citation "United States Transport Stats", NationMaster. "United States Transport Stats, NationMaster." 1960-2013. 'United States Transport Stats, NationMaster', < [assessed 1960-2013] "United States Transport Stats", NationMaster.
Study Shows People Are Clueless About Energy Savings – Here’s What Actually Works. Quick, name one of the best things you can do to save energy at home. If you said “turning off the lights,” you’d be wrong. But you are not alone, most Americans say the same thing. A new survey shows most people have misconceptions about what works best to save energy. Keeping lights off isn’t a bad idea in itself, but it has significantly less impact than swapping out the bulbs for more energy-efficient ones, says Shahzeen Attari, who published a paper on the survey. In some cases, leaving energy-efficient lights on may actually be more effective: according the the Department of Energy, the lifespan of compact fluorescents, or CFLs, is decreased by being frequently switched off and on. Survey participants were asked an open-ended question on what they thought was the single most effective thing they could do to conserve energy in their lives. This graph shows survey participants’ mean perceived energy usage or savings in watts per hour versus actual energy usage or savings. 1.
Soil Stabilizer, Asphalt Alternative, Cement Alternatives History of Asphalt Laura Ingalls Wilder, author of the beloved Little House on the Prairie, tells of her first encounter with an asphalt pavement. She was on a wagon journey with her parents in 1894 that took them through Topeka. "In the very midst of the city, the ground was covered by some dark stuff that silenced all the wheels and muffled the sound of hoofs. Today, this dark, resilient material covers more than 94 percent of the paved roads in the United States; it’s the popular choice for driveways, parking lots, airport runways, racetracks, tennis courts, and other applications where a smooth, durable driving surface is required. But the story of asphalt begins thousands of years before the founding of the United States. The first recorded use of asphalt as a road building material was in Babylon around 625 B.C., in the reign of King Naboppolassar. We know that the ancient Greeks were familiar with asphalt and its properties. Asphalt Roads Come to America Patented Roadways
Rotating Solar House Generates Five Times The Energy It Consumes What’s cooler than a rotating house? One whose solar panels produce five times the energy the house uses. That’s pretty incredible, considering that even zero-energy structures are rare. German architect Rolf Disch built the home, called Heliotrope, to follow the sun throughout the day. A giant 6.6-kilowatt-capacity rooftop solar panel called the Sun Sail slurps up the rays of energy, pumping them into the home and grid. The Sun Sail itself rotates separately from the house, adjusting itself to the best possible position at all times. The house is green inside as well. Is it nice to live in? This video tours the house inside and out. Hat tip to Inhabitat
Fractal Field Breakthru-Technologies SCHEDULE and Online Links solar powered roadways by scott brusaw aug 07, 2012 solar powered roadways by scott brusaw ‘solar powered roads’ by scott brusaw american electrical engineer scott brusaw has developed a system of solar powered roads as an initiative to change the face of national highways. his project ‘solar roadways’ aims to re-purpose existing concrete and asphalt surfaces that are exposed to the sun with solar road panels. he is currently introducing the technology in driveways, bike paths, patios, sidewalks, parking lots, playgrounds, before integrating them onto public roads. aside from providing sustainable transportation solutions, the concept will provide socio-economic advantages in all aspects of daily life. LED demonstration ‘solar roadways’ video illuminated road ways informing traffic of any danger top: winter without solar roads, bottom; winter with solar roads rodrigo caula I designboom
NASA Satellites' View of Gulf Oil Spill Over Time NASA Satellites' View of Gulf Oil Spill Over Time Two NASA satellites are capturing images of the oil spill in the Gulf of Mexico, which began April 20, 2010 with the explosion of the Deepwater Horizon oil rig. This short video reveals a space-based view of the burning oil rig and, later, the resulting spread of the oil spill. This version updates a previous version of the video through July 14th. The images in this video were selected to show the spill most clearly. Pureone Home Page 2012 top ten: technology dec 23, 2012 designboom 2012 top ten: technology designboom’s 2012 TOP 10 technology features technology has had a big impact on the development of humanity in terms of the way we have communicate with one another, as well as how we interact with the tangible, and intangible for that matter. we’ve come a long way, and 2012 continued to give us a glimpseat what our connected future could look like, but at the same time saw the redevelopment of many old devices and technologiesas a sort of resistance to our rapidly changing existence. designboom brings you a survey of the top ten tech stories of 2012. 1. researchers at the MIT media lab in america have developed a new camera system that processes visual data at a rate of one trillion frames per second. the technology is capable of detecting light travel, producing images that can track the individual movement of light photons through slow motion video captures. 2. the microsoft surface tablet 3. solar powered roads by scott brusaw 10.
La forêt brésilienne, au cœur d’une âpre bataille avant Rio+20 C'est un conflit de longue date qui vient de monter d'un cran. Depuis deux semaines, les défenseurs de l'environnement exhortent la présidente du Brésil Dilma Rousseff à mettre son veto à une loi controversée ouvrant la voie à une déforestation accrue en Amazonie. Mercredi, 1,7 million de personnes avaient signé une pétition contre ce texte qui embarrasse le pays, presque un mois avant le sommet Rio+20 sur le développement durable. La mobilisation, entraînée par des OGN écolos, des réalisateurs (comme le cinéaste Fernando Meirelles) ou des hommes politiques (à l'instar de l'ex-ministre de l'environnement Marina Silva), s'est accélérée le 26 avril, lorsque la chambre des députés a définitivement approuvé, à une large majorité, une réforme du code forestier du pays, dans la foulée du vote du Sénat en novembre, mettant ainsi fin à près de trois ans de discussions et revirements. En 2009, le gouvernement a en effet promis de réduire de 36 % ses émissions de CO2 d'ici à 2020. Audrey Garric
Virent, Inc.