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quarta-feira, 14 de julho de 2010


Papel Electrónico barato!
Monday, July 12, 2010

Cheap E-Paper Displays Coming to a Store Near You

Nemoptic's new e-paper technology is cheap and efficient enough to be used almost anywhere.
By Christopher Mims

Technically, the e-paper race is full of dark horses--including the sector leader itself, E-Ink, whose electrophoretic e-paper technology, used in the Kindle and countless other e-paper devices, is threatened by upstarts like Apple's iPad and forthcoming hybrid "transflective" LCD / e-paper displays from Pixel Qi.

But to declare the race for e-paper dominance over is to forget just how widespread and diverse are the uses of dead-tree paper: every one of which represents an opportunity for e-paper manufactures.

Nemoptic, which has yet to partner with a hardware maker willing to put their displays into a proper e-reader, has managed to carve out a niche for itself by following this logic, and creating an e-paper display usable in place of those little tags on the front of grocery store shelves that tell you the prices of goods.

Apparently the ability to remotely update prices on store shelves from a centralized computer is labor-saving enough that retailers throughout Europe and Asia are jumping on the e-paper bandwagon.

ATENÇÃO INVENTORES, uma fibra Óptica que serve como Sensor de pressão:

Fabricating a Multifunctional Fiber

Fibers that carry light and sense pressure could be used for medical imaging and structural monitoring.

By Katherine Bourzac

Researchers at MIT have developed optical fibers that not only carry and modulate light, but also generate and sense pressure changes. The multifunctional fibers could be used to make various types of sensors. The fibers can also be squeezed in a way that modulates an optical signal, making them promising for "smart" textiles.

O famoso Carro Voador, mais perto dos Stands:

DARPA Asks for a Flying Car, Gets a Dual-Rotor Road Warrior Turned Helo
By Clay Dillow
Just after the new year, DARPA put out a broad agency announcement requesting a flying car, specifically a one-to four-person, vertical takeoff and landing-capable vehicle that can negotiate off-road conditions as well as take to the skies. Today, Fort Worth-based AVX Aircraft has responded with a proposal, releasing some mock-ups of a dual-rotor, ducted-fan driven aircraft that’s also road-ready.

AVX says the four-seater will be able to carry a 1,040-lb. payload 250 miles on a single tank of fuel, peaking at 80 miles per hour over land and 140 miles per hour in the air. It’s coaxial rotor design would certainly satisfy the vertical take-off and landing requirement, and at least the sketches make it look off-road rugged. Unfolding the rotor blades for flight should convert the vehicle from road warrior to aircraft in just one minute.

Of course, sketches are only sketches and it will be interesting to see if AVX can flesh this design out into a practical battlefield vehicle that reliably complies with the written laws of physics and the unwritten practicalities of combat. But as concepts go this one is pretty cool. Feel free to pull the pic above into Photoshop and add the air-to-surface armaments of your choice.

 ...E um Avião da Boeing, que funciona a Hidrogénio:

Boeing's Corpulent Hydrogen-Powered Spy Plane Will Fly at 65,000 Feet For Four Days
By Rebecca Boyle

The future of spycraft looks pretty heavy, if this new Boeing plane is any indication. Adding to today's parade of pretty new planes, Boeing unveiled a hydrogen-powered unmanned aircraft system Monday that will stay aloft at 65,000 feet for four days.

The Phantom Eye is not exactly sleek, but it's one of the greenest aircraft out there -- its only byproduct is water.

The aircraft heralds a potential new market in data and communications collection, Boeing says. Later this summer, it will be shipped from Boeing's Phantom Works facility in St. Louis to NASA's Dryden Flight Research Center for ground and taxi testing. The debut flight will likely take place next year and should last four to eight hours, a mere preview of the aircraft's apparent capabilities.

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