Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror
×
Science

Why Time Flies By As You Get Older 252

Ant notes a piece up on WBUR Boston addressing theories to explain the universal human experience that time seems to pass faster as you get older. Here's the 9-minute audio (MP3). Several explanations are tried out: that brains lay down more information for novel experiences; that the "clock" for nerve impulses in aging brains runs slower; and that each interval of time represents a diminishing fraction of life as we age.
Image

Political Affiliation Can Be Differentiated By Appearance 262

quaith writes "It's not the way they dress, but the appearance of their face. A study published in PLoS One by Nicholas O. Rule and Nalini Ambady of Tufts University used closely cropped greyscale photos of people's faces, standardized for size. Undergrads were asked to categorize each person as either a Democrat or Republican. In the first study, students were able to differentiate Republican from Democrat senate candidates. In the second, students were able to differentiate the political affiliation of other college students. Accuracy in both studies was about 60% — not perfect, but way better than chance."
OS X

Apple Patches Massive Holes In OS X 246

Trailrunner7 writes with this snippet from ThreatPost: "Apple's first Mac OS X security update for 2010 is out, providing cover for at least 12 serious vulnerabilities. The update, rated critical, plugs security holes that could lead to code execution vulnerabilities if a Mac user is tricked into opening audio files or surfing to a rigged Web site." Hit the link for a list of the highlights among these fixes.
Image

Police Called Over 11-Year-Old's Science Project 687

garg0yle writes "Police in San Diego were called to investigate an 11-year-old's science project, consisting of 'a motion detector made out of an empty Gatorade bottle and some electronics,' after the vice-principal came to the conclusion that it was a bomb. Charges aren't being laid against the youth, but it's being recommended that he and his family 'get counseling.' Apparently, the student violated school policies — I'm assuming these are policies against having any kind of independent thought?"
Government

Moscow Police Watch Pre-Recorded Scenes On Surveillance Cams 114

An anonymous reader writes "During several months of 2009, Moscow police looked at fake pictures displayed on their monitors instead of what was supposed to be video from the city surveillance cams. The subcontractor providing the cams was paid on the basis of 'the number of working cams,' so he delivered pre-cooked pictures stored on his servers. The camera company CEO has been arrested."
Media

Lack of Manpower May Kill VLC For Mac 398

plasmacutter writes "The Video Lan dev team has recently come forward with a notice that the number of active developers for the project's MacOS X releases has dropped to zero, prompting a halt in the release schedule. There is now a disturbing possibility that support for Mac will be dropped as of 1.1.0. As the most versatile and user-friendly solution for bridging the video compatibility gap between OS X and windows, this will be a terrible loss for the Mac community. There is still hope, however, if the right volunteers come forward."
Image

Dad Delivers Baby Using Wiki 249

sonamchauhan writes "A Londoner helped his wife deliver their baby by Googling 'how to deliver a baby' on his mobile phone. From the article: 'Today proud Mr Smith said: "The midwife had checked Emma earlier in the day but contractions started up again at about 8pm so we called the midwife to come back. But then everything happened so quickly I realized Emma was going to give birth. I wasn't sure what I was going to do so I just looked up the instructions on the internet using my BlackBerry."'"
Image

The Perfect Way To Slice a Pizza 282

iamapizza writes "New Scientist reports on the quest of two math boffins for the perfect way to slice a pizza. It's an interesting and in-depth article; 'The problem that bothered them was this. Suppose the harried waiter cuts the pizza off-center, but with all the edge-to-edge cuts crossing at a single point, and with the same angle between adjacent cuts. The off-center cuts mean the slices will not all be the same size, so if two people take turns to take neighboring slices, will they get equal shares by the time they have gone right round the pizza — and if not, who will get more?' This is useful, of course, if you're familiar with the concept of 'sharing' a pizza."
Education

US Colleges Say Hiring US Students a Bad Deal 490

theodp writes "Many US colleges and universities have notices posted on their websites informing US companies that they're tax chumps if they hire students who are US citizens. 'In fact, a company may save money by hiring international students because the majority of them are exempt from Social Security (FICA) and Medicare tax requirements,' advises the taxpayer-supported University of Pittsburgh (pdf) as it makes the case against hiring its own US students. You'll find identical pitches made by the University of Delaware, the University of Cincinnati, Kansas State University, the University of Southern California, the University of Wisconsin, Iowa State University, and other public colleges and universities. The same message is also echoed by private schools, such as John Hopkins University, Brown University, Rollins College and Loyola University Chicago."
Image

Man Accuses Cat of Downloading Child Porn 174

bruce_the_loon writes "They have blamed viruses. They have blamed neighbors. They have accused police of planting it. In rare cases, they have admitted downloading it. This is the first time someone has accused a cat of downloading child porn onto their computer. This seems like a defense almost too stupid to be made up."

Windows 7 Pre-Orders Top Vista's In Just 8 Hours 279

Barence writes "In order to ensure Windows 7 got off to a better start than Vista in the UK, Microsoft slashed the cost of Home and Home Professional by a third on promotional copies which were sold on a 'first come, first served basis while stocks last.' The promotion ensured Windows 7 shot to the top of Amazon's charts when it was released yesterday, with the online retailer claiming that 'sales in the first eight hours outstripped those of Windows Vista's entire 17-week pre-order period.' The price of pre-ordering Windows 7 has now shot up to £80, after the £50 copies sold out within a day."

Comment North American Engineering, not Imperial (Score 1) 901

In the United States, the prevailing use is North American Engineering units of measure, not Imperial units of measure. North Americal Engineering units of measure has lbm (pound-mass) for mass, lbf (pound-force) for force, and Gc = 32 lbm*ft/s^2/lbf. Imperial units of measure has lb (pound) for mass, poundal for force, and Gc = 1 lb*ft/s^2/poundal.

Here Gc is the constant that converts the units in the equation for force f required to accelerate mass m at rate a :

f = m*a/Gc.

Slashdot Top Deals

"Sometimes insanity is the only alternative" -- button at a Science Fiction convention.

Working...