MSU researchers create a new engine prototype (w/ video)
PhysOrg.com) -- Researchers at Michigan State University have built a prototype, based on the research first released in 2009, of the Wave Disk Generator -- an engine that does not have pistons, crankshafts or valves.
http://www.physorg.com/news/2011-03-msu-prototype-video.html
Um Taser que funciona à distância...
New Taser can strike suspect 100 feet away
Weapon shoots cartridge that delivers shock
By Stephanie Czekalinski
Columbus police have deployed a new shotgun-style stun gun that can hit targets up to 100 feet away.The Taser X12 shoots wireless cartridges that travel about 260 feet per second, according to Taser International. The projectiles are similar in size and shape to traditional shotgun shells"It's incredibly accurate," said Sgt. Matt Weekley.The projectile is barbed and flies prongs first. Once it strikes its target, the prongs attach to the body through clothing.
http://www.dispatch.com/live/content/local_news/stories/2011/03/27/new-taser-can-strike-suspect-100-feet-away.html?sid=101
Microwaves utilized to convert used motor oil into fuel
By Ben Coxworth
It has been estimated that over 8 billion US gallons (30.3 billion liters) of used motor oil are produced every year by the world's cars and trucks. While some of that is re-refined into new oil or burned in furnaces for heat, neither of those processes are entirely environmentally-innocuous. In other cases, it is simply discarded. Today, however, researchers from the University of Cambridge announced the development of a process that uses microwaves to convert waste oil into vehicle fuel.
Scientists have already been using a process known as pyrolysis for recycling oil. It involves heating the oil to a high temperature in the absence of oxygen, and causes the oil to break down into a mixture of gases, liquids, and solids. While the gases and liquids can be converted to fuel, the Cambridge scientists state that traditional pyrolysis doesn't heat the oil very evenly, making the fuel conversion process difficult and impractical.
...E uma ideia genial, um método para transformar uma data de superfícies em Painéis Solares:
Wysips technology can turn any surface into a PV power plant
By Paul Ridden
Mobile phones sporting photovoltaic panels are nothing new but thanks to some lens wizardry, a French company recently showed off a prototype phone where the touchscreen display itself housed the solar-soaking cells. Similar to the lenticular optics which sends slightly different images to each eye for glasses-free 3D viewing, Wysips technology allows light to pass through a semi-cylindrical lens onto thin strips of photovoltaic cells below, while also allowing the surface underneath to show through. The developers say that many surfaces could potentially become self-sufficient power producers.
Supercondutividade a 20 Graus!
Superconductivity Near 20 Celsius
- Superconductivity Approaches Room Temperature -Superconductors.ORG herein reports the observation of superconductivity near 20 C. In eight magnetization tests a small amount of the compound (Tl5Pb2)Ba2MgCu10O17+ consistently produced sharp diamagnetic transitions (the Meissner effect) near 20 Celsius (see above graphic), and resistive transitions that appeared near 18.5C (see below right). These temperatures are believed accurate +/- 2 degrees.
http://www.superconductors.org/20C.htm
Algo mais sobre Impressoras 3D:
How It Works: The Make-All 3-D Printer
The Objet Connex churns out complex objects by spraying eight million plastic droplets a second
Since the first 3-D printer was invented by Charles Hull in 1984, machines have seen vast improvements in speed and accuracy. Today’s best 3-D printers operate much like a standard inkjet, spraying millions of droplets of polymer to build an object layer by layer. But there’s a hitch: Most 3-D printers use only use a single material at once, thus each product they produce can be just one color or consistency.
The Objet Connex can print two materials at a time, and even mix composites. In doing so, it can craft items with varied flex, shade and feel. The Connex has helped hospitals fabricate see-through medical models and even allowed a Massachusetts Institute of Technology student to construct a working flute complete with moving hinges and rubber gaskets.
http://www.popsci.com/technology/article/2011-03/how-it-works-make-all-machine
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