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Transportation

Hyperdrive Propulsion Could Be Tested At the LHC 322

KentuckyFC writes "In 1924, the influential German mathematician David Hilbert calculated that a stationary mass should repel a particle moving towards or away from it at more than half the speed of light (as seen by a distant inertial observer). Now an American physicist has pointed out that the equal and opposite effect should also hold true: that a relativistic particle should repel a stationary mass. This, he says, could form the basis of a 'hypervelocity propulsion drive' for accelerating spacecraft to a good fraction of the speed of light. The idea is that the repulsion allows the relativistic particle to deliver a specific impulse that is greater than its specific momentum, an effect that is analogous to the elastic collision of a heavy mass with a much lighter, stationary mass, from which the lighter mass rebounds with about twice the speed of the heavy mass. Unlike other exotic hyperdrive proposals, this one can be tested using the world's largest particle accelerator, the LHC, which will generate beams of particles with the required energy (abstract). Placing a test mass next to the beam line and measuring the forces on it as the particles pass by should confirm the theory — or scupper it entirely."
Data Storage

Which OS Performs Best With SSDs? 255

Lucas123 writes "Linux, Vista and Mac OS perform differently with solid state disks. While all of them work well with SSDs, as they write data more efficiently or run fewer applications in the background than XP, surprisingly Windows 2000 appears to be the winner when it comes to performance. However, no OS has yet been optimized to work with SSDs. This lost opportunity is one Microsoft plans to address with Windows 7; Apple, too, is likely to upgrade its platform soon for better SSD performance."

Comment Re:pico/mega/terra (Score 1) 207

if 1mb is 1,000,000bp/s then a pico by your own definition is 1,000,000,000,000,000bp/s or 1,000,000,000mbp/s which is one billion mega bits per-second. One thousand mbp/s would be giga-bit, a million mbp/s would be a terra-bit, and one billion I believe would be peta-bit; 1pbp/s. So yes, sounds like they are off by an order or so.
Music

$5 Per Month Fee Proposed For Legal Music P2P 528

sneakyimp writes "Both Wired and Ars Technica have reports on Jim Griffin's proposal that ISPs charge each broadband customer $5 per month to subsidize the ailing music industry. The resulting fund would ostensibly 'compensate songwriters, performers, publishers and music labels.' Although no specific version of the proposal has been referenced, a number of controversies are inherent to the plan: How is the money really divided? What happens when the MPAA, the Business Software Alliance, and various other industry groups want their own surcharge added? What about the supposed majority of broadband customers who never download illegal music? Griffin discussed the plan further at SXSW . We've previously discussed a similar proposal from the Songwriters Association of Canada.
Power

US Plans "Disposable" Nuclear Batteries 297

holy_calamity writes "A US government program is in the works to design small nuclear reactors for use by developing countries. The work continues despite fears about security and nuclear proliferation. Plans include having reactors supplied with fuel by the US and other trusted nations, or to build reactors with their whole lifetime of fuel packaged securely inside — like a giant non-user replaceable radioactive battery.' '"

When Stallman is Attacked 562

writes "Linux Tech Daily has an editorial slamming a recent Forbes.com attack piece on Richard Stallman and GPLv3. Loved or hated, do you agree with the author that the piece is FUD and completely unprofessional? Love him or hate him, is this unfair treatment of rms? Does he leave himself open to these kinds of attacks with his behavior?" The problem with the editorial of course is that many of the points made in the original Forbes piece are completely valid and true. So basically you get to choose between the linux zealot, and a writer who is obviously fairly hostile towards Stallman's ideas.

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