theodp writes "In investigating the question of whether men are smarter than women, British researcher Adrian Furnham came up with some startling results. His analysis of some 30 studies showed that men and women are fairly equal overall in terms of IQ, but women underestimate their own intelligence while men overestimate theirs. Surprisingly, both men and women perceived men being smarter across generations — both sexes believe that their fathers are smarter than their mothers and their grandfathers are more intelligent than their grandmothers. And if there are children, both men and women think their sons are brighter than their daughters."Read more of this storyat Slashdot.

  stillnotelf writes "A team based at MIT has won the DARPA Network Challenge. DARPA notes: 'The Challenge has captured the imagination of people around the world, is rich with scientific intrigue, and, we hope, is part of a growing "renaissance of wonder" throughout the nation,' said DARPA's director, Dr. Regina E. Dugan. 'DARPA salutes the MIT team for successfully completing this complex task less than 9 hours after balloon launch.' PDF with (scant) details. Hit the first link above for a map with the locations. How many did your team find?"Read more of this storyat Slashdot.

  ACKyushu writes "Researchers from Helsinki University of Technology (Finland), University of New South Wales (Australia), and University of Melbourne (Australia) have succeeded in building a working transistor whose active region comprises only a single phosphorus atom in silicon. The results have just been published in Nano Letters. The working principles of the device are based on sequential tunneling of single electrons between the phosphorus atom and the source and drain leads of the transistor. The tunneling can be suppressed or allowed by controlling the voltage on a nearby metal electrode with a width of a few tens of nanometers."Read more of this storyat Slashdot.

  John Bryson writes "Eating less of one amino acid might lengthen your life. There have been lots of previous studies showing that many species live long on highly restricted calories, but a lot of this benefit may be possible by only restricting one amino acid. Amino acids that have shown this have been tryptophan and methionine. A recent study, published online December 2 in Nature, a highly respected journal, may help explain some of the health benefits of restricted-calorie diets."Read more of this storyat Slashdot.

  coondoggie writes "Looking to build strategic satellites in days if need be, rather than months, the Air Force is pushing forward with what it calls plug-and-play spacecraft. This week it awarded a $500,000 order to Northrop Grumman to begin designing the plug-and-play spacecraft 'bus' which will offer standard interfaces for a variety of payload components, much like a laptop computer that immediately recognizes new hardware when it's plugged in, Northrop stated. The order was awarded under a contract that has a ceiling of $200 million."Read more of this storyat Slashdot.

  AMESN writes "Ways to bend light around objects and render them invisible are becoming a major field of scientific study and gaining ground. While no actual invisibility cloak exists yet, researchers are also theorizing on how to beat the perfect cloak."Read more of this storyat Slashdot.

  gyrogeerloose writes "During its last mission, astronauts from the Space Shuttle Atlantis installed an Automatic Identification System antenna on the outside of the International Space Station that will allow astronauts aboard the ISS to monitor signals from the AIS transmitters mandated to be installed on most large ocean-going craft. Although these VHF signals can be monitored from the Earth's surface, their horizontal range is generally limited to about 75 km (46 mi), leaving large areas of the ocean unwatched. However, the signals easily reach the 400 km (250 mi) orbit of the ISS. The European Space Agency sees this experiment as a test platform for a future AIS-monitoring fleet of satellites that will eventually provide worldwide coverage of sea traffic."Read more of this storyat Slashdot.

  eldavojohn writes with an update to the CRU email leak story we've been following for the past two weeks. The peer-reviewed scientific journal Nature has published an article saying the emails do not demonstrate any sort of "scientific conspiracy," and that the journal doesn't intend to investigate earlier papers from CRU researchers without "substantive reasons for concern." The article notes, "Whatever the e-mail authors may have said to one another in (supposed) privacy, however, what matters is how they acted. And the fact is that, in the end, neither they nor the IPCC suppressed anything: when the assessment report was published in 2007 it referenced and discussed both papers." Reader lacaprup points out related news that a global warming skeptic plans to sue NASA under the Freedom of Information Act for failing to deliver climate data and correspondence of their own, which he thinks will be "highly damaging." Meanwhile, a United Nations panel will be conducting its own investigation of the CRU emails.Read more of this storyat Slashdot.

  astroengine writes "Science fiction is stuffed full of examples of pill-popping space explorers and aliens enjoying psychedelic highs. After all, space is big; it can get boring/scary/crazy up there. It's little wonder, then, that our current space explorers consume a cocktail of uppers, downers, tranquilizers and alcohol to get the job done. Robert Lamb on tranquilizers in the space station: 'Sure, it hardly makes for a civilized evening aboard ISS, but it beats someone blowing the hatch because they think they saw something crawling on one of the solar panels.'"Read more of this storyat Slashdot.

  MaryBethP writes "Scientists in Italy announced Wednesday that Pierpaolo Petruzziello, a 26-year-old Italian who had lost his left forearm in a car accident, was successfully linked to an artificial limb that was controlled by electrodes implanted in his arm and connected to the median and ulnar nerves. He has learned to control the artificial limb with his mind. According to CNet, Petruzziello says he could feel sensations in it, as if the lost arm had grown back again. The BBC has a brief video showing the arm in operation."Read more of this storyat Slashdot.

  SETIGuy writes "SETI@home Project Scientist Eric Korpela has responded to many of the allegations made by Higley Unified School District administrator Denise Birdwell regarding the difficulties caused by the installation of SETI@home, which led to the recent firing of the school's technology supervisor. One of the project's founders, David Gedye, takes issue with Dr. Birdwell's claim that 'an educational institution ... cannot support the search for E.T.' Meanwhile, the fired supervisor denies misusing school computers."Read more of this storyat Slashdot.

  mit_team writes "As you might have heard, DARPA has announced a network challenge in the vein of the DARPA Grand Challenge. In this challenge, participants are tasked with finding 10 red weather balloons distributed throughout the continental US for 8 hours on December 5. The idea is to get this to be a crowd-sourcing kind of activity, where people will use social media tools to solve this problem. Our group, the MIT Red Balloon Challenge Team, based out of the MIT Media Lab, has created a system where you get money not just for finding balloons, but for getting people to join the hunt who find the balloons, or for getting people who get people who find balloons, etc. First you have to sign up. Then you can send invitations to others to join through your own unique URL, crediting you with recruiting them. While our team is interested in winning the contest, we are also interested in studying information diffusion in social networks. Does Twitter spread information faster than blogs? Is your blog effective at spreading information? We could use your help in getting out the word. If you sign up and blog about us you will be able to see the impact that your blog has on getting out the word in real time. Win money, help science, and help charity! Kind regards, The MIT Red Balloon Challenge Team."Read more of this storyat Slashdot.

  kkleiner writes "Organovo and strategic partner Invetech hope in 2010 to release a commercial version of their 3D organ printer capable of producing very basic tissues like blood vessels. While it is still limited to simple tissue structures (full organs are a long ways off), Organovo plans to deliver the printers to various research institutions interested in organ and tissue production. Working with these institutions, Organovo hopes to one day progress to creating a system that can print organs as easily as other 3D printers print plastic figurines."Read more of this storyat Slashdot.

  mclearn sends in news of "a very large, 30-year study of just about everyone in Scandinavia" that shows no link between mobile phone use and brain tumors. "Even though mobile telephone use soared in the 1990s and afterward, brain tumors did not become any more common during this time, the researchers reported in the Journal of the National Cancer Institute. Some activist groups and a few researchers have raised concerns about a link between mobile phones and several kinds of cancer, including brain tumors, although years of research have failed to establish a connection. ... 'From 1974 to 2003, the incidence rate of glioma (a type of brain tumor) increased by 0.5 per cent per year among men and by 0.2 per cent per year among women,' they wrote. Overall, there was no significant pattern."Read more of this storyat Slashdot.