Saturday, December 27, 2008

Researcher hopes to put fuel cells on the fast track

Haile’s research, which initially began several years ago with fuel cell researchers at JPL, has led to breakthroughs in more “consumer-ready” fuel cell technology. She’s developed fuel cell systems that strike a balance between power and manageability –- perfect, she says, for standalone residential generators. Her team has worked hard to reduce the amount of platinum needed for each system.

Haile thinks that the verdict is still out on whether hydrogen “makes sense” as the fuel of the future. “When most people hear ‘fuel cells,’ they think hydrogen,” says Haile. “That’s a common misperception -- fuel cells aren’t necessarily restricted to hydrogen.”

RIAA's Request For Appeal Denied In Thomas Case

The RIAA's request for permission to appeal from the decision setting aside its $222,000 jury verdict has been denied by District Court Judge Michael J. Davis. In a brief, 6-page decision (PDF) the Judge dismissed the RIAA's arguments that there is a 'substantial ground for a difference of opinion' on the question of law presented, whether the Judge had erred in accepting the RIAA's proposed jury instruction that merely 'making files available' could constitute an infringement of the plaintiffs' distribution rights.

He likewise dismissed their argument that granting permission for the appeal would 'materially advance the ultimate termination of the litigation,' since (a) depending on the outcome of the trial, plaintiffs might not wish to appeal from the judgment, and (b) no matter how the appeals court rules on the 'making available' issue, the case will still have to continue in the lower court, since even if the RIAA wins on the 'making available' issue, the Court will still have to address the constitutionality of the large jury verdict, which may result in a new trial.

Sending Text Messages Cheaper Than You Think

TEXT messaging is a wonderful business to be in: about 2.5 trillion messages will have been sent from cellphones worldwide this year. The public assumes that the wireless carriers’ costs are far higher than they actually are, and profit margins are concealed by a heavy curtain.....

Perhaps the costs for the wireless portion at either end are high — spectrum is finite, after all, and carriers pay dearly for the rights to use it. But text messages are not just tiny; they are also free riders, tucked into what’s called a control channel, space reserved for operation of the wireless network.

That’s why a message is so limited in length: it must not exceed the length of the message used for internal communication between tower and handset to set up a call. The channel uses space whether or not a text message is inserted.

Srinivasan Keshav, a professor of computer science at the University of Waterloo, in Ontario, said: “Messages are small. Even though a trillion seems like a lot to carry, it isn’t.”