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Space

Black Holes May Not Grow Beyond Certain Limit 201

xyz writes "Do black holes increase in size indefinitely? According to an analysis by astronomers at Yale and the European Southern Observatory, the maximum size a black hole may reach is only few tens of billion of solar masses. The limit was calculated using an analysis of what may happen to the gas surrounding a black hole which has reached few tens of billions of solar masses. It is thought that black holes of such size heat the surrounding gas to a temperature where the radiation pressure begins blowing outer layers into space."
Medicine

Researchers Developing Cancer-Fighting Beer 283

CWmike writes "Ever picked up a cold, frosty beer on a hot summer's day and thought that it simply couldn't get any better? Well, think again. A team of researchers at Rice University in Houston is working on helping Joe Six Pack fight aging and cancer with every swill of beer." Thank you science! Now we just need cigarettes that cure baldness.
The Almighty Buck

Economic Crisis Will Eliminate Open Source 753

An anonymous reader writes "The economic crisis will ultimately eliminate open source projects and the 'Web 2.0 free economy,' says Andrew Keen, author of The Cult of the Amateur. Along with the economic downturn and record job loss, he says, we will see the elimination of projects including Wikipedia, CNN's iReport, and much of the blogosphere. Instead of users offering their services 'for free,' he says, we're about to see a 'sharp cultural shift in our attitude toward the economic value of our labor' and a rise of online media businesses that reward their contributors with cash. Companies that will survive, he says, include Hulu, iTunes, and Mahalo. 'The hungry and cold unemployed masses aren't going to continue giving away their intellectual labor on the Internet in the speculative hope that they might get some "back end" revenue,' says Keen."
Space

Proposed Telescope Focuses Light Without Mirror Or Lens 165

A team of scientists from Observatoire Midi Pyrénées in Toulouse, France have been working with an unusual technique for focusing light. It takes advantage of diffraction - the bending of waves when they encounter an obstacle in their path - to focus light as it passes through a foil sheet with precise holes in it. The scientists suggest that an orbital 30-meter imager could resolve planets the size of Earth within 30 light-years. In addition, the foil is much lighter than traditional materials, and thus easier to transport. "A Fresnel imager with a sheet of a given size has vision just as sharp as a traditional telescope with a mirror of the same size, though it collects just 10% or so of the light. It can also observe in the ultraviolet and infrared, in addition to visible light. The imager can take very detailed images with high contrast, which is great for 'being able to see a very faint object in the close vicinity of a bright one.'"
United States

Homeland Security Tracks Information of Travelers 338

feuerfalke writes "Homeland Security recently disclosed a plan regarding an Automated Targeting System, or ATS, that would generate a 'terrorist risk rating' based on information collected about the traveler. This information would include things such as where they are from, how they paid for tickets, their motor vehicle records, past one-way travel, seating preference and the meals they ordered in-flight. These ratings have now been assigned to millions of international travelers, including Americans, and the ATS is exempt from many provisions of the Privacy Act — one cannot view their rating or the information used to generate it."

Bot Nets Behind Recent Spam Surge 389

gsslay writes "Everyone must have noticed a surge in spam recently, particularly for stock pump 'n' dump scams. The Register reports that anti-spam companies have seen a 30% increase in the last two months and, more worryingly, more of this spam is getting through to mailboxes due to the spammers' change in tactics. Rather than use unsecured mail relays spammers are using bot nets, making spam harder to identify and eliminate. Bounced spam is also on the up, and some experts reckon it's past time to start worrying. "

Hiring (Superstar) Programmers 570

Ross Turk wrote, "We've been looking for senior engineers to work on SourceForge.net for a while now, and it's been a lot more difficult than it was a few years ago. Has the tech market improved so much that working on a prominent website is no longer enough to attract the best talent? Is everyone else running into the same problems, or is it just here in the Valley and other high-tech corridors?" This is a question that I've seen coming in a lot; the economy has not picked up everywhere — so how are other people handling this? Going outside the traditional Valley/Route 128 corridors? Outsourcing? And how do you find people — beyond just using job boards? (Full disclosure: That's our job board thingie, as you probably have figured out.) Or do job boards alone work? Some people have been swearing up and down that CraigsList works — and there's always something to be said for nepotism.
User Journal

Journal Journal: I'm a man 15

It's time to tell the truth. I am a 55 year-old man. My name is Andy Kaufman, and I live in New York City.

I am sincerely sorry to everyone for all my lies.

--Andy

User Journal

Journal Journal: Merry Christmas -- $$$$$exyGal

It's not the new year yet, but it seems like a good time to give thanks.

Long story short, I've had a good year. Great job, short commute, and dating again. I've become focused, but with great flexibility. I'm not sweating the big stuff, or the small stuff. The good stuff is in the middle.

May your holidays be commercial-free,
$$$$$exyGal

============

User Journal

Journal Journal: Teach me economics: Why are tech jobs going to India? 19

American companies are moving tech jobs overseas to India [more info]. Why? Simple, it's all about money. But how is that so? The article says that Indian programmers make 1/10th that of American programmers. Why do they make so much less?

I'm not an economist, but here's a some possible reasons:

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