brianmed writes to tell us that Stanford researchers have created a new use for silicon nanowires that promise to reinvent lithium-ion batteries. "The new version, developed through research led by Yi Cui, assistant professor of materials science and engineering, produces 10 times the amount of electricity of existing lithium-ion, known as Li-ion, batteries. A laptop that now runs on battery for two hours could operate for 20 hours, a boon to ocean-hopping business travelers. [...] The lithium is stored in a forest of tiny silicon nanowires, each with a diameter one-thousandth the thickness of a sheet of paper. The nanowires inflate four times their normal size as they soak up lithium. But, unlike other silicon shapes, they do not fracture."

necro81 writes "The New York Times is reporting on a discovery from a team of UC Berkley researchers, who may have discovered the brightest stellar explosion ever observed. Observations of the cataclysmic explosion of a 100- to 200-solar-mass star began last September, based on data from the Chandra X-ray Observatory. The researchers believe that the explosion is similar to the death spasms of the first stars in the universe. The super-massive star's collapse is believed to have been so energetic as to create unstable electron-positron pairs that tore the star apart before it could collapse into a black hole — seeding the universe with heavier elements."

mplex writes "How vulnerable is the internet to terrorist attack? Is it robust enough to handle an outage on a massive scale? Should the commercial infrastructure that powers the internet be kept secret? These are the sorts of questions raised by Mark Gibbs in his latest column in Network World. 'There is an alternate route available for nearly all services through Las Vegas or Northern California serving all facilities-based carriers in Los Angeles -- all interconnected at numerous L.A. and L.A.-area fiber-optic terminals supporting both metro and long-distance cable.' Given that the internet thrives on open networks, it's hard to imagine keeping them a secret. At best, we must be prepared to deal with the worst."

JeremyDuffy sends us to Ars Technica for a look at an e-voting bill making its way through Congress that is gaining the support of the likes of Ed Felten and the EFF. Quoting: "HR 811 features several requirements that will warm the hearts of geek activists. It bans the use of computerized voting machines that lack a voter-verified paper trail. It mandates that the paper records be the authoritative source in any recounts, and requires prominent notices reminding voters to double-check the paper record before leaving the polling place. It mandates automatic audits of at least three percent of all votes cast to detect discrepancies between the paper and electronic records. It bans voting machines that contain wireless networking hardware and prohibits connecting voting machines to the Internet. Finally, it requires that the source code for e-voting machines be made publicly available."

Somnus suggests we check out the latest issue of MIT's Technology Review, where researchers describe how they can dramatically boost engine output and efficiency by preventing pre-ignition, or "knock." How they do it: "Both turbocharging and direct injection are preexisting technologies, and neither looks particularly impressive... by combining them, and augmenting them with a novel way to use a small amount of ethanol, Cohn and his colleagues have created a design that they believe could triple the power of a test engine."

theodp writes "Much-maligned defense contractor Halliburton is moving its corporate headquarters from Houston to Dubai in the United Arab Emirates. Dubai's friendly tax laws will add to Halliburton's bottom line. Last year the company earned $2.3B in profits. Sen. Patrick Leahy called the company's move 'corporate greed at its worst.' Halliburton, once headed by VP Dick Cheney, has been awarded contracts valued at an estimated $25.7B for its work in Iraq."

Dollaz wrote with a link to the International Business Times, which questions the authenticity of D-Wave's Quantum computing. We discussed the 'Sudoku playing' computer yesterday, but scientists in the field have expressed a lot of distrust of the company's findings. The machine was not available for inspection during or after the demo, and even if the technology was working as intended there is some doubt that it can be scaled. The article points out that "notwithstanding lofty claims in the company's press release about creating the world's first commercial quantum computer, D-Wave Chief Executive Herb Martin emphasized that the machine is not a true quantum computer and is instead a kind of special-purpose machine that uses some quantum mechanics to solve problems." Good to see people in the field questioning 'breakthroughs'.

An anonymous reader writes to mention that the U.S. Missile Defense Agency and Lockheed Martin recently reported success in the test flight of the Terminal High Altitude Area Defense (THAAD) missile system. "THAAD is designed to defend U.S. troops, allied forces, population centers and critical infrastructure against short- to intermediate range ballistic missiles. THAAD comprises a fire control and communications system, interceptors, launchers and a radar. The THAAD interceptor uses hit-to-kill technology to destroy targets, and is the only weapon system that engages threat ballistic missiles at both endo- and exo-atmospheric altitudes."

eldavojohn writes "The aurora borealis (also known as the Northern Lights) has long been known to be an effect resulting from the Sun's solar wind pushing particles into the earth's magnetic field and atmosphere. In light of the possible danger that these substorms could pose to astronauts & equipment, NASA is now planning a mission to track down these magnetic storms and disturbances. The program's not so catchy name of Time History of Events and Macroscale Interaction during Substorms has a slightly catchier acronym of THEMIS. From the article, "In order to scan the Earth's magnetic field and pinpoint the origin of substorms, THEMIS researchers plan to stagger their spacecraft in different orbits that range in altitude from 10 to 30 times the radius of the Earth (the planet's radius is about 3,962 miles, or 6,378 kilometers).""