Blog Posts

domingo, 3 de julho de 2011


Afirmações ousadas, não sei é se verdadeiras, WiFi muito melhor, ultra-rápido e para toda a gente, dizem estes:

OnLive Creator Claims He Can Bring Ultrafast Wireless to Everyone, Seemingly Violating Laws of Physics
By Dan Nosowitz
Steve Perlman, founder of the cloud-based gaming-on-demand service OnLive, claims to have discovered a new method of wireless communications that would not only drastically outpace what we have now, but would actually disprove many of the accepted rules of how wireless communications in general work.

First things first: This theory popped up in a presentation Perlman gave at the NExTWORK conference, and only received a small mention. There was no demonstration, no real proof given, and since his proposal flies directly in the face of the Shannon-Hartley Theorem, a guideline for wireless technologies, we're not inclined to really believe his claims. But! Sometimes somebody says something so crazy with such confidence that you have to sit up and take notice, and this particular idea would have such massive effects on communications technology that we're bound to at least encourage discussion about it. That's not to be taken as an endorsement, though.

Andar de novo, depois da Cadeira de Rodas?

Japanese scientists develop robotic exoskeleton

By Agence France-Presse

A disabled Japanese man on Friday embarked on an ambitious trip that will take him to a mediaeval French World Heritage site with the help of a cutting-edge robotic suit.

Seiji Uchida, 49, who lost the ability to walk in a car accident 28 years ago, said his trip to the picturesque abbey of Mont Saint Michel, set on a rocky islet in Normandy, will be only the beginning of his dream.

"Right now, I cannot stand on my own feet without help," said Uchida at Tokyo's Narita airport before his departure to France.

"But I will never give up on my hope of someday walking on my own feet, no matter how many years it would take."

In a project planned to take place Tuesday, Uchida -- paralysed from his waist down and in one hand -- will be carried up the hill of Mont Saint Michel by a man wearing a robot suit, called the Hybrid Assistive Limb (HAL).

... E o triunfo da Realidade, sobre a Gadgeteria:

Killer Drones, Stealth Jets, Spy Planes: Bob Gates’ Legacy in Military Tech

By Spencer Ackerman

On his way out the door at the Pentagon, Robert Gates leveled with the military. A staggering $700 billion in defense R&D and gear since 9/11 led to only "relatively modest gains in actual military capability," Gates said on June 2. No giant robots, jet packs or sharks with lasers. But in a way, that made Gates' job easier, since the arch-realist was never about military fantasies, anyway.

As Defense Secretary, Gates protected the military's huge budgets for four and a half years. But while he did, he took a firm aim at popping the military's fantasy bubbles that inhibited durable technological and martial innovation. He tried to reboot what the military buys around a simple principle: reality. That is, buy what's immediately relevant for troops fighting in Iraq and Afghanistan, and what will be relevant to those facing the most likely threats of the future. That's meant blast-proof trucks, intelligence gear and radio frequency jammers, not giant planes that shoot laser beams. He'd be the first to say he's had mixed results.

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