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Lévitation Magnétique

Lévitation Magnétique
For years, NASA has been researching the possibility of using the high speeds of maglev transportation to fling spacecraft into low Earth orbit. "It would really open up space to human exploration and commercialization," Powell says. "It's something we can't do now because it's too expensive." Powell and his colleagues have proposed two generations of space launching technology. The first is a cargo-only launch track that could be built into a mountainside to reach a height of 20,000 feet. Magnets could allow a spacecraft traveling along the track to reach speeds around 18,000 miles per hour—enough to fly into space. And that's just the first generation.

Related:  Magnetism

Magnetic Fields & Magnetic Force Magnetism is one aspect of the combined electromagnetic force. It refers to physical phenomena arising from the force caused by magnets, objects that produce fields that attract or repel other objects. A magnetic field exerts a force on particles in the field due to the Lorentz force, according to Georgia State University's HyperPhysics website. The motion of electrically charged particles gives rise to magnetism. The force acting on an electrically charged particle in a magnetic field depends on the magnitude of the charge, the velocity of the particle, and the strength of the magnetic field. All materials experience magnetism, some more strongly than others.

wNw Bar in Binh Duong, Vietnam / Vo Trong Nghia Sinbadesign Vo Trong Nghia studied architecture as a student on the Japanese Government’s Scholarship. After graduation from Tokyo University and Nagoya Institute of Technology, he returned to Vietnam and created an energy-saving architectural style through using environmentally – friendly materials and architectural design. In 2006, he started his own architectural company in Vietnam, Votrongnghia Co. , Ltd . Alongside his architectural practice, Nghia has been invited to have lectures in several foreign countries such as China, Japan, Sri Lanka … The idea in design of architectural model made from the low-cost materials is necessarily raised in order to make high speed construction and ease in transport.

Iron Sky Concept Art by Jussi Lehtiniemi Concept artist and illustrator Jussi Lehtiniemi has posted some great concept art he created for Iron Sky. Jussi joined the production in 2007 when he was commissioned to do concept art for the first teaser. In 2008 he started working fulltime on the film. He worked in creating many of the environments, vehicles and structures that appeared in the film. Iron Sky is a dark science fiction comedy directed by Timo Vuorensola and will feature musical score composed by Laibach. Snowflakes Up Close: A Small, Fragile World If you’re one of those people who likes to ponder things while looking out a frosty window on a cold winter day, these pictures will clear up one of those long standing wonders: each snowflake really IS unique. Some look like roman columns, others circuit boards or spaceships. Taken under high magnification using a microscope, these images bring a fragile and beautiful world into view.

100 Incredible Lectures from the World's Top Scientists Posted on Thursday June 18, 2009 by Staff Writers By Sarah Russel Unless you’re enrolled at one of the best online colleges or are an elite member of the science and engineering inner circle, you’re probably left out of most of the exciting research explored by the world’s greatest scientists. But thanks to the Internet and the generosity of many universities and online colleges, you’ve now got access to the cutting edge theories and projects that are changing the world in this list below. If you’re looking for even more amazing lectures, check out our updated list for 2012 with more talks from great minds. General Magnetism A magnetic quadrupole Magnetism is a class of physical phenomena that includes forces exerted by magnets on other magnets. It has its origin in electric currents and the fundamental magnetic moments of elementary particles. These give rise to a magnetic field that acts on other currents and moments.

Eco-city Inside a One Kilometer Crater in Siberia Eco-city 2020 is a proposal for the rehabilitation of the Mirniy industrial zone in Eastern Siberia, Russia designed by the innovative architectural studio AB Elis Ltd. The project would be located inside a giant man-made crater of more than one kilometer in diameter and 550 meters deep that used to be one of the world’s largest quarries. The idea is to create a new garden city that will be shielded from the harsh Siberian environmental conditions characterized by long and severe winters and short hot summers.

Monsters on Post-It Notes - Post It Note Art by John Kenn I’m a fan of Post-It Note art. As I have no actual artistic ability myself, I was often limited to doodling on post-it notes as it would have been a waste to use nicer sketch books. However, Danish TV writer and director John Kenn has taken what I did for kicks while killing time and turned it into a true art form. Below is a sampling of his works, but you should definitely go and check out his ever expanding selection of Post-It Note art on his website, . I’m pretty certain that monster is going to steal that child’s balloon. Print Your Own 3D models PlusBooksanalysisinsightsopinionblog About BaekdalFollow Baekdal RSSAdvertiseSearch BAEKDAL PLUS Subscribe now Sign-in

people Perpetual Futility A short history of the search for perpetual motion. by Donald E. Simanek Popular histories too often present perpetual motion machines as "freaks and curiosities" of engineering without telling us just how they were understood at the time. They also fail to inform us that even in the earliest history of science and engineering, many persons were able to see the futility and folly of attempts to achieve perpetual motion. Sometimes a particular device comes to us with a label, such as "Bishop Wilkins' magnetic perpetual motion machine."

Relativity of Electric and Magnetic Fields previous home next PDF Michael Fowler, University of Virginia A Magnetic Puzzle… $300 Geopolymer Earthbag Dome / 'The $300 House' Challenge for $300 House other researchers at the Geopolymer Institute. I’ve been investigating the potential of using geopolymer cast stone as a low cost, durable fill material in earthbag houses and reporting my findings on our Earthbag Building Blog. The basic process is quite simple. The ancients used limestone, kaolin clay, sodium carbonate, lime and water to make cast stone in situ. (See the excellent video in the above link.)

Amazing Photos 2012: The Best Pictures Of The Year, So Far (IMAGES) So far, 2012 has produced some amazing photography, a point more than proved by a series of images compiled by one Internet user. Reddit user stoopidtrooper posted this gallery of 48-images from photo sharing site Imgur on Monday. It captures some of the most amazing photos taken in 2012. From seahorses to solar eclipses, sleeping whales to space jumps, the photos span the breadth of human experience.