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terça-feira, 12 de abril de 2011

Notícias

Um novo Material Compósito onde se podem detectar mais fácilmente falhas estruturais...



New advanced composite material lends itself to aircraft safety

By Frank Leonard

A combination of light weight AND strength makes advanced composite materials very useful when building something that's designed to go fast while being subjected to physical stress ... like an aircraft. On the downside, bulky equipment is required when it comes to inspecting these aircraft for damage – a problem that is MIT researchers hope to solve with the development of a new type of composite material that incorporates carbon nanotubes.
Aircraft composites consist of high-strength fibers, such as carbon or glass, embedded in a plastic or metal matrix. Unlike aluminum, they are not a uniform surface which means they can look fine on the outside despite being damaged internally – there's no noticeable crack or dent, so it's difficult to tell if there is damage?

http://www.gizmag.com/advanced-composite-materials-mit-aircraft/18366/


Um Autocarro no mínimo, invulgar...





Video: New Dutch Superbus Carries Two Dozen Passengers At 155 MPH 
By Rebecca Boyle

High speed trains are so passé — for comfortable superfast travel, hop on the Superbus.
With a top speed of 155 MPH, the new Superbus, which sort of looks like an elongated Batmobile, could be an efficient way to reduce congestion at a lower cost than building new trains or other public transit systems.

http://www.popsci.com/cars/article/2011-04/video-new-dutch-superbus-carries-two-dozen-passengers-155-mph


E vejam só isto, energia das marés, uma ideia do século 19?



Three Inventors Who Tried to Bottle the Ocean’s Power 
By Alexis Madrigal

A young man with artistic aspirations could not have resisted the crowds of Market Street on a Saturday night. Nothing was more San Francisco than the street that cut through its heart. Like a weekly fair, all classes of society and the many flags of a port town mixed on the promenade from Powell to Kearny. “Everybody, anybody, left home and shop, hotel, restaurant, and beer garden to empty into Market Street in a river of color,” wrote one young woman of the time.
Among the throngs of sailors and servants, we could almost certainly have found a young Jewish kid with an overbearing father and a canted, humane take on human foibles. Long after the 1890s and far away from the city by the bay, he would make a name for himself with a set of drawings that made him the most popular cartoonist of the machine age.

http://www.wired.com/gadgetlab/2011/04/madrigal-wave-motors/

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