Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×
Earth

Have We Reached Maximum Sustainable Population Size? 1070

Hugh Pickens writes "Pulitzer prize winning writer Thomas Friedman writes that in few years we may be looking back at the first decade of the 21st century — when food prices spiked, energy prices soared, world population surged, tornados plowed through cities, floods and droughts set records, populations were displaced and governments were threatened by the confluence of it all — and ask ourselves: What were we thinking? 'We're currently caught in two loops,' writes Friedman. 'One is that more population growth and more global warming together are pushing up food prices; rising food prices cause political instability in the Middle East, which leads to higher oil prices, which leads to higher food prices, which leads to more instability.' According to the Global Footprint Network we are currently growing at a rate that is using up the Earth's resources far faster than they can be sustainably replenished, so we are eating into the future. Right now, global growth is using about 1.5 Earths. 'Having only one planet makes this a rather significant problem,' says Paul Gilding. 'We either allow collapse to overtake us or develop a new sustainable economic model. We will choose the latter. We may be slow, but we're not stupid.'"

Comment Re:Schools vs. Killing brown people (Score 1, Informative) 419

I went to the Illinois state-run brainiac school (IMSA) upon which Daley is dreaming -- let me tell you, this is not the model that will help Chicago's education program. These elite schools spend exorbitantly on a small crop of students, giving them (myself included) a fucking awesome education while students who didn't make the cut are stuck in the ineffectual morass of public high schools.

To really solve Chicago's education problem, you have to prioritize the schools that cater to the very worst students; it makes no sense to spend more money on students who are already succeeding.
Security

Hackers Get Free Parking In San Francisco 221

Hugh Pickens writes "PC World reports that at the Black Hat security conference this week, security researchers say that it is pretty easy for a technically savvy hacker to make a fake payment card that gives them unlimited free parking on San Francisco's smart parking meter system. 'It wasn't technically complicated and the fact that I can do it in three days means that other people are probably already doing it and probably taking advantage of it,' says Joe Grand. 'It seems like the system wasn't analyzed at all.' To figure out how the payment system worked, Grand hooked up an oscilloscope to a parking meter and monitored what happened when he used a genuine payment card. Grand discovered the cards aren't digitally signed, and the only authentication between the meter and card is a password sent from the former to the latter. Examining the meters themselves could yield additional vulnerabilities that might allow someone to conduct other kinds of attacks, such as propagating a virus from meter to meter via the smart cards or a meter minder's PDA."
Earth

Black Holes From the LHC Could Last For Minutes 672

KentuckyFC writes "There is absolutely, positively, definitely no chance of the LHC destroying the planet (or this way either) when it eventually switches on some time later this year. And yet a few niggling doubts are persuading some scientists to run through their figures again. One potential method of destruction is that the LHC will create tiny black holes that could swallow everything in their path, including the planet. Various scientists have said this will not happen because the black holes would decay before they could do any damage. But physicists who have re-run the calculations now say that the mini black holes produced by the LHC could last for seconds, possibly minutes. Of course, the real question is whether they decay faster than they can grow. The new calculations suggest that the decay mechanism should win over and that the catastrophic growth of a black hole from the LHC 'does not seem possible' (abstract). But shouldn't we require better assurance than that?"
Earth

Zapping Contrails With Microwave Emitters 125

An anonymous reader writes "Dissipation of contrails with a powerful microwave beam aligned behind aircraft engines is being touted as a possible solution to help address air transport's effects on the climate. 'The remote heating of condensation nuclei could be achieved by applying electromagnetic radiation, such as microwaves,' says Cranfield University's Frank Noppel. 'Depending on assumptions made, calculation shows that the power required for such a device could be as little as 0.1% of the engine power.'"
Businesses

Success Not Just a Matter of Talent 247

NinjaCoder writes "The Guardian has an interesting article based on a new book (Outliers: The Story Of Success, by Malcolm Gladwell) which examines some persons of interest to computer technology (Bill Joy, Bill Gates and Steve Jobs, amongst others). It examines reasons for their successes and strongly suggests a link between practice (10,000 hours by age 20 being the magic milestone) and luck. This maybe an obvious truism, but the article does give interesting anecdotes on how their personal circumstances led to today's technological landscape. It points out that many of the luminaries of the current tech industry were born around 1955, and thus able to take advantage of the emerging technologies.
The Internet

How To Supplement Election Coverage? 241

An anonymous reader asks "What information sources and social networking sites will you be using to supplement the election coverage on TV next Tuesday? I am ready with a big HDTV with Comcast, a Mac mini, and and an Xbox 360. I also have two laptops (one good for websites and one for streaming video), an old-school Blackberry, a 'regular' cell phone, a Nokia N810, a Squeezebox, and finally Sirius Satellite Radio. Which websites should I watch for live county results? I already know about the Twitter Vote Report for tracking and reporting voting issues and I already watch 'CNN Reporters' on Friendfeed for the national flair. What other Twitter accounts should I follow? Which urgent ones should I send to my phones? Which YouTube accounts or keywords I should subscribe to in Miro? What are the most popular sites for posting 'on-scene' videos — iReport, Flickr, something else? I know most local Fox affiliates are great about streaming, but is there a page that lists all of the streams, in case I need to quickly focus on one city or area? Basically, how would you configure all those gadgets?" This reader might find some guidance in what to focus on from a video produced by reader (and data modeler) Bruce Nash that lays out a predicted timeline for when the media will call each state, depending on when the polls close and how tight each race is expected to be.
Privacy

ACLU Creates Map of US "Constitution-Free Zone" 979

trackpick points out a recent ACLU initiative to publicize a recent expansion of authority claimed by the Border Patrol to stop and search individuals up to 100 miles from any US border. They have created a map of what they call the US Constitution-Free Zone. "Using data provided by the US Census Bureau, the ACLU has determined that nearly 2/3 of the entire US population (197.4 million people) live within 100 miles of the US land and coastal borders. The government is assuming extraordinary powers to stop and search individuals within this zone. This is not just about the border: This 'Constitution-Free Zone' includes most of the nation's largest metropolitan areas.'"
United States

Voters In Many States Must Register By October 6 182

Will F. Johnston writes "Voters in AK, AR, AZ, CO, DC, FL, GA, HI, IN, KY, LA, MI, MS, OH, PA, TN, TX, and VA must register to vote by tomorrow, October 6, in order to vote in November. Other deadlines coming up soon: IL and NM are October 7. MT is Oct. 6, but you can do same-day registration at the elections office. UT is also Oct. 6, but you can register in person until the 20th."
Bug

e1000e Bug Squashed — Linux Kernel Patch Released 111

ruphus13 writes "As mentioned earlier, there was a kernel bug in the alpha/beta version of the Linux kernel (up to 2.6.27 rc7), which was corrupting (and rendering useless) the EEPROM/NVM of adapters. Thankfully, a patch is now out that prevents writing to the EEPROM once the driver is loaded, and this follows a patch released by Intel earlier in the week. From the article: 'The Intel team is currently working on narrowing down the details of how and why these chipsets were affected. They also plan on releasing patches shortly to restore the EEPROM on any adapters that have been affected, via saved images using ethtool -e or from identical systems.' This is good news as we move towards a production release!"
Space

Iran Announces Manned Space Mission Plans 559

Lucas123 writes "After Iran's first attempt to launch a satellite on Sunday fell noticeably short of the Earth's atmosphere (though Iran claimed it made it into orbit), government officials stated they intend to put a man into space within 10 years. The long-range ballistic technology used to put satellites into space can also be used for launching weapons. Iran says it has no intention to use the technology for launching nuclear warheads."
Perl

Why Corporates Hate Perl 963

Anti-Globalism recommends a posting up at O'Reilly's ONLamp on reasons that some companies are turning away from Perl. "[In one company] [m]anagement have started to refer to Perl-based systems as 'legacy' and to generally disparage it. This attitude has seeped through to non-technical business users who have started to worry if developers mention a system that is written in Perl. Business users, of course, don't want nasty old, broken Perl code. They want the shiny new technologies. I don't deny at all that this company (like many others) has a large amount of badly written and hard-to-maintain Perl code. But I maintain that this isn't directly due to the code being written in Perl. Its because the Perl code has developed piecemeal over the last ten or so years in an environment where there was no design authority.. Many of these systems date back to this company's first steps onto the Internet and were made by separate departments who had no interaction with each other. Its not really a surprise that the systems don't interact well and a lot of the code is hard to maintain."
Biotech

Bees Help Detectives Catch Serial Killers 132

Hugh Pickens writes "The way bumblebees search for food could help detectives hunt down serial killers — because just as bees forage some distance away from their hives, so murderers avoid killing near their homes, says a University of London research team. The researchers' analysis describes how bees create a 'buffer zone' around their hive where they will not forage, to reduce the risk of predators and parasites locating the nest. This behavior pattern is similar to the geographic profile of criminals stalking their victims. 'Most murders happen close to the killer's home, but not in the area directly surrounding a criminal's house, where crimes are less likely to be committed because of the fear of getting caught by someone they know,' says Dr. Nigel Raine. Criminologists will fold this insight into their models using details about crime scenes, robbery locations, abandoned cars, even dead bodies, to hone the search for a suspect."

Slashdot Top Deals

No directory.

Working...