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Science

The Possibility of Paradox-Free Time Travel 421

relliker writes in with word of a paper up on the ArXiv by Seth Lloyd and co-workers, exploring the possibility that "postselection" effects in non-linear quantum mechanics might allow paradox-free time travel. "Lloyd's time machine gets around [the grandfather paradox] because of the probabilistic nature of quantum mechanics: anything that this time machine allows can also happen with finite probability anyway... Another interesting feature of this machine is that it does not require any of the distortions of spacetime that traditional time machines rely on. In these, the fabric of spacetime has to be ruthlessly twisted in a way that allows the time travel to occur. ... Postselection can only occur if quantum mechanics is nonlinear, something that seems possible in theory but has never been observed in practice. All the evidence so far is that quantum mechanics is linear. In fact some theorists propose that the seemingly impossible things that postselection allows is a kind of proof that quantum mechanics must be linear."
Businesses

WordPress Creator GPL Says WP Template Must Be GPL'd 571

An anonymous reader writes "Matt Mullenweg (the creator of open source blog software WordPress), after review by various legal experts, is sticking to his guns that themes and plugins that 'extend' WordPress violate the GPL if they are not themselves distributed under the GPL. Matt has gone so far as to post this on Twitter. According to Matt, the premium template called Thesis should be under the GPL and the owner is not happy about it. WordPress is willing to sue the maker of Thesis theme for not following GPL licensing. The webmasters and Thesis owners are also confused with new development. Mark Jaquith wrote an excellent technical analysis of why WordPress themes inherit the GPL. This is why even if Thesis hadn't copy-and-pasted large swathes of code from WordPress (and GPL plugins) its PHP would still need to be under the GPL."
Businesses

Apple, RIM, Google All Bid On Palm 117

imamac writes "It seems HP was only one of many bidders for the struggling Palm. The others included Apple, RIM and even Google. You may now commence speculation on why the various companies wanted Palm."
NASA

Sonic Skydive's Real Aim Is To Help Astronauts Survive 140

mattnyc99 writes "Earlier this year came reports that Felix Baumgartner (the daredevil who flew across the English Channel) would be attempting to jump from a balloon at least 120,000 feet altitude, break the sound barrier, and live. Now comes a big investigative story from Esquire's issue on achieving the impossible, which details the former NASA team dedicated to making sure Baumgartner's Stratos project will instruct the future safety of manned space flight (including Jonathan Clark, the husband of an astronaut who died in the Columbia disaster). From the article (which also includes pics and video shot by the amateur space photographer we've discussed here before): 'that's also precisely what makes Stratos great. It's more like Mercury than the shuttle: They're taking risks, making things up as they go along. But they're also doing important work, potentially groundbreaking work. They're doing what NASA no longer has the balls to do. Hell, he'd do it for free. He is doing it for free. Stratos only picks up his travel expenses. Clark looks at his friend, shrugs. "This is new space."'"
Firefox

Best Browser For Using Complex Web Applications? 347

yanyan writes "I'm fairly new to the field of web application development. Currently I'm working on a big online ticketing system for passage and freight for a local shipping company. It's a one-man show and the system is written in Ruby and uses Rails. Aside from the requisite functionality of creating bookings the system must also print reports and tickets, and this is where I've discovered (the hard way) that most, if not all, browsers fall short. I've had to switch from Firefox 3.6.3 to Opera 10.53 because of a major printing bug in Firefox, but the latest stable Opera is also giving me its own share of problems. To complicate things, an earlier version of Opera (10.10) doesn't appear to have 10.53's printing problems, but I'm wary. What browsers and specific versions do you end up deploying for use with big, complex web apps that include printing? Also consider CSS accuracy and consistency."
Open Source

Microsoft's CoApp To Help OSS Development, Deployment 293

badpazzword writes "Microsoft employee Garrett Serack announces he has received the green light to work full time on CoApp, an .msi-based package management system aiming to bring a wholly native toolchain for OSS development and deployment. This will hopefully bring more open source software on Windows, which will bring OSS to more users, testers and developers. Serack is following the comments at Ars Technica, so he might also follow them here. The launchpad project is already up."
Books

Amazon Caves To Publishers On eBook Pricing 236

AusPublishingWorker writes "With the iPad arriving on the scene, it seems that Amazon is feeling the pressure on eBook pricing from publishers. ITNews reports that Amazon has agreed to deals with both Harper Collins and Simon and Schuster which would allow the companies to select their own prices rather than the default US$9.99 price tag. Given the recent deal with Macmillan, it seems likely that we'll be seeing eBook prices moving up towards $14.99 in the near future."
Java

The Struggle To Keep Java Relevant 667

snydeq writes "Fatal Exception's Neil McAllister questions Oracle's ability to revive interest in Java in the wake of Oracle VP Jeet Kaul's announcement at EclipseCon that he would 'like to see people with piercings doing Java programming.' 'If Kaul is hoping Java will once again attract youthful, cutting-edge developers, as it did when it debuted in 1995, [Kaul] may be in for a long wait,' McAllister writes. 'Java has evolved from a groundbreaking, revolutionary language platform to something closer to a modern-day version of Cobol.' And, as McAllister sees it, 'Nothing screams "get off my lawn" like a language controlled by Oracle, the world's largest enterprise software vendor. The chances that Java can attract the mohawks-and-tattoos set today seem slimmer than ever.'"

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