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Space

Light Echoes Solve Mystery of Tycho's Supernova 98

Ponca City, We love you writes "Powerful telescopes in Hawaii and Spain are using 'light echoes' from the original supernova explosion that have bounced off dust in the surrounding interstellar clouds to identify the precise type of supernova that Tycho Brahe saw 436 years ago. Although the echoed light from Tycho's supernova is around 20 billion times fainter than the original light observed in 1572, the team took identical images of the sky a few months apart and then digitally subtracted one from the other to find evidence for several sets of light echoes rippling across patches of dust in the northern Milky Way. 'Using light echoes in supernova remnants is time-travelling in a way, in that it allows us to go back hundreds of years to observe the first light from a supernova event. We got to relive a significant historical moment and see it as the famed astronomer Tycho Brahe did hundreds of years ago,' said Tomonori Usuda, of the Subaru Telescope in Hawaii. Tycho's original observations were particularly important as he immediately concluded that the new star, visible even by day, could not be closer than the Moon challenging the Aristotelian view of the cosmos, widely accepted since ancient times, which held that the sky beyond the Moon never changed."
Cellphones

(Useful) Stupid BlackBerry Tricks? 238

Wolfger writes "Continuing the recent (useful) stupid theme: I've recently become a BlackBerry user, and I'm in love with the obvious(?) tricks, such as installing MidpSSH to access my home box remotely. But I'd like to know what more experienced Crackberry addicts can share."
Networking

Beating Comcast's Sandvine On Linux With Iptables 361

HiroDeckard writes "Multiple sites reported a while ago that Comcast was using Sandvine to do TCP packet resets to throttle BitTorrent connections of their users. This practice may be a thing of the past as it's been found a simple rule in the Linux firewall, iptables, can simply just block their reset packets, returning your BitTorrent back to normal speeds and allowing you to once again connect to all your seeds and peer. If blocking the TCP packet resets becomes a common practice, on and off of Linux, it'll be interesting to see the next move in the cat-and-mouse game between customers and service providers, and who controls that bandwidth."
Programming

What Makes a Programming Language Successful? 1119

danielstoner writes "The article '13 reasons why Ruby, Python and the gang will push Java to die... of old age' makes an interesting analysis of the programming languages battling for a place in programmers' minds. What really makes a language popular? What really makes a language 'good'? What is success for a programming language? Can we say COBOL is a successful language? What about Ruby, Python, etc?"

Koster's Areae Unveils Metaplace 84

Some nine months ago veteran MMOG designer Raph Koster announced his new game company, called Areae ... but not what they were making. To go along with the TechCrunch40 Conference, the company has finally taken the wraps off of their project: Metaplace. Essentially, Metaplace is going to be a virtual world toolkit. The whole thing is built on open standards, and attempt to 'bring virtual worlds to the web', instead of keeping them boxed away in a separate little garden. As the site puts it: "We knew it was all coming together when one of our team made a game in a day and a half. And then stuck that game on a private MySpace profile. You can inherit someone else's world (if they let you) and use it as a starting point. You can slurp whole directories of art and use them as building blocks. Cut and paste a movement system or a health bar from one world to another. Use an RSS feed for your NPCs. We made puzzle games, RPGs, action games... and set up doorways from one to the other." Virtual World News and GigaOM have writeups of the presentation at the TechCrunch Conference, while Areae's Community Manager Tami Baribeau writes in a post why gamers should care. Over at his site Areae President Raph Koster just breaths a sigh of relief.
United States

Air Force Mistakenly Transports Live Nukes Across America 898

kernel panic attack writes "Surely the late Stanley Kubrick is somewhere smiling at this one. Forbes.com has a story about a B-52 Bomber that mistakenly flew 6-nuclear tipped cruise missles across several states last week. The 3-hour flight took the plane from Minot Air Force Base, N.D, to Barksdale Air Force Base, La., on Aug. 30. The incident was so serious that President Bush and Defense Secretary Robert Gates were quickly informed and Gates has asked for daily briefings on the Air Force probe, said Defense Department press secretary Geoff Morrell."
GNU is Not Unix

Hypervisors Can Defeat GPLv3's Anti-Tivoization 377

DeviceGuru writes "A hypervisor can be used to isolate from each other software works released under incompatible licenses, while allowing them to run simultaneously on the same hardware. For example, Linux and Windows CE can run on separate virtual machines on one device, without violating either OS's license. Due to the isolation between multiple VMs running atop a hypervisor, it seems like this architecture could allow companies to build Linux-based devices, such as mobile phones or set-top boxes (think TiVo), that can't be upgraded by their users without authorization, thereby circumventing the GPLv3's 'anti-tivoization' clauses." Here's a white paper with more details from a commercial hypervisor company.

Feed Science Daily: Pellets Of Power Designed To Deliver Hydrogen For Tomorrow's Vehicles (sciencedaily.com)

Hydrogen may prove to be the fuel of the future in powering the efficient, eco-friendly fuel cell vehicles of tomorrow. Developing a method to safely store, dispense and easily "refuel" the vehicle's storage material with hydrogen has baffled researchers for years. However, a new and attractive storage medium may provide the "power of pellets" to fuel future transportation needs.

Feed Science Daily: Elephantnose Fish 'See' With Their Chin (sciencedaily.com)

Originating in Central Africa, Peters' elephantnose fish finds its bearings by means of weak electrical fields. Scientists have now been able to show how well this works. In complete darkness the animals can even distinguish the material of objects at a distance or dead organisms from living ones.

Feed Science Daily: New Smallpox Vaccine Candidates Demonstrate Superior Immune Response, Efficacy A (sciencedaily.com)

The integration of an immune-enhancing protein into two new smallpox vaccine candidates elicited superior immune responses, efficacy and safety in mice say researchers from the U.S. Following the declaration of global eradication of smallpox in 1979, vaccinations for the general public were discontinued. Today, the virus poses threat as an agent of biological warfare, leaving half of the worldwide population susceptible to serious disease or death in the event of an attack.
Handhelds

Aids For Communicating With Hospitalized People? 160

charliezcc writes "My grandmother recently fell and broke two vertebrae (among other things) and is in the hospital while she recovers. Thankfully, she was not paralyzed and retains the use of her limbs. However, they have placed her on a respirator and she is virtually unable to communicate with us, so while we try to keep her company during her recovery, our company is reduced to mainly one-sided conversations. Asking her questions, even yes/no questions, is hard because of the neck brace — it turns into a guessing game and very quickly becomes frustrating for both parties. I'm a firm believer in the power of positive mental attitudes and to make her recovery a little better and I'd like to be able to facilitate two-sided conversations with her so she can keep positive. Keeping in mind that she does not have much technology experience, what would you suggest I utilize to ease the communication barrier? I remember seeing devices with a number of buttons that say whatever you program it to say, but I can't find these anymore. What other kind of devices are available?"
Education

High School Students Forced To Declare A Major 670

i_like_spam writes "As reported in the NYTimes, high school freshmen at many high schools across the nation are now being forced to pick a major. Starting this Fall, 9th graders in Florida will have to choose to major from among a set of state-approved subjects, while some students in Mississippi will have to follow one of nine designated career paths. High school administrators hope that having students declare majors will lead to greater student interest in school until graduation. College administrators think otherwise: 'youngsters should instead concentrate on developing a broad range of critical thinking and communication skills,' says Debra Humphreys from the Association of American Colleges and Universities."
Databases

MySQL Ends Enterprise Server Source Tarballs 413

vboulytchev writes "The folks at MySQL has quietly announced that it will no longer be distributing the MySQL Enterprise Server source as a tarball. It's been about a year since the split between the paid and free versions of the database project. The Enterprise Server code is still under the GNU General Public License (GPL), and as a result MySQL appears to be making it harder for non-customers to access the source code. 'One of the things that many users worry about is whether they're getting an inferior version of MySQL by using the Community version. Urlocker says that MySQL "wants to make sure the Community version is rock solid," but admitted that the company has introduced features into the Community edition of the software that "[weren't] as robust as we thought, and created some instabilities." Because of that, the company is revising its policies about when features go into the Community releases.'" Update: 08/10 04:56 GMT by CN :While it is slightly harder to get, the source isn't closed by any means, so I updated the title to reflect that.

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