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Space

Interstellar Ark 703

Posted by CmdrTaco from the yeah-good-luck-with-that dept.
xantox writes "There are three strategies to travel 10.5 light-years from Earth to Epsilon Eridani and bring humanity into a new stellar system : 1) Wait for future discovery of Star Trek physics and go there almost instantaneously, 2) Build a relativistic rocket powered by antimatter and go there in 22 years by accelerating constantly at 1g, provided that you master stellar amounts of energy (so, nothing realistic until now), but what about 3): go there by classical means, by building a gigantic Ark of several miles in radius, propulsed by nuclear fusion and featuring artificial gravity, oceans and cities, for a travel of seven centuries — where many generations of men and women would live ? This new speculation uses some actual physics and math to figure out how far are our fantasies of space travel from their actual implementation."
User Journal

Journal Journal: FF 2: ^H^H^H^H^H^H^H^H^H^H^H^ And an idea.

Journal by NeMon'ess

edit: I overlooked a simple checkbox.

Just upgraded from Firefox 1.5 to 2, and Tabbrowser Extensions don't work anymore. I found Tab Mix Plus, which is almost as good. [Edit: cut, snip, delete.]

Education

Submission + - Instructor led Online Training possible?

Submitted by
revantj
revantj writes: "Hello,

I was just going through Google and found bunch of IT companies that provided training for various programming languages(C#, PHP, c++, etc.) That got me thinking would it be actually possible to provide Instructor Led Training online? I think with the right experienced instructors, good course material, system of testing and appropriate technology such a service could be possible and much more convenient. What do you guys think ?

           "
Networking

5 Things the Boss Should Know About Spam Fighting 168

Posted by Zonk from the never-give-up-never-surrender dept.
Esther Schindler writes "Sysadmins and email administrators were asked to identify the one thing they wish the CIO understood about their efforts to fight spam. The CIO website is now running their five most important tips, in an effort to educate the corporate brass. Recommendations are mostly along the lines of informing corporate management; letting bosses know that there is no 'silver bullet', and that the battle will never really end. There's also a suggestion to educate on technical matters, bringing executives into the loop on terms like SMTP and POP. Their first recommendation, though, is to make sure no mail is lost. 'This is a risk management practice, and you need to decide where you want to put your risk. Would you rather risk getting spam with lower risk of losing/delaying messages you actually wanted to get, or would you rather risk losing/delaying legitimate messages with lower risk of spam? You can't have both, no matter how loudly you scream.'"

Nanotech Battery Claims to Solve Electric Car Woes 320

Posted by Zonk from the down-with-woes dept.
rbgrn writes "A123 Systems claims to have invented a Lithium Ion battery that not only can discharge at very high rates of current but can be recharged very quickly without damage to the cells or overheating. From their website: 'A unique feature of A123Systems' M1 cells is their ability to charge to high capacity in 5 minutes or less. That's a significant improvement over traditional Li Ion, which typically requires more than 90 minutes to reach a similar level of charge.' Using this technology, General Motors has announced a plug-in hybrid SUV and Venture Vehicles is developing a fully electric 3 wheel vehicle. Politics aside, the main technological hurdle to mass adoption of electric cars has been a fuel station replacement when driving distances beyond a single charge worth of range. Will we finally be seeing high current recharge stations in the next decade?"

Feed Air Force Tests Synthetic Fuel (wired.com)

From feed by wiredfeed
Successful cold-weather tests in North Dakota of a synthetic fuel blend that could be made from coal or natural gas shows the Air Force a way to wean itself from foreign crude. By the Associated Press.


Networking

Submission + - Videoconferencing server for Linux ?

Submitted by Hymer
Hymer writes: Well it is really a simple question: Does anyone here know a vidoconferencing server for Linux ? It may be a non-standard solution but the clients have to exist for at least Linux, Windows and Mac OS X. The communication channel should preferably encrypted. I need video and some kind of common workplace or desktop sharing, audio is optional. I've searched the Net and found nothing... geeks do not need to look at other geeks to understand eachother but CEO's obviously does... ;-)

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