×
Math

Is Poor Numeracy Ruining Lives? 489

Hugh Pickens writes "The BBC reports on how millions of people struggle to understand a payslip or a train timetable, or pay a household bill. Government figures show that almost half the working population of England have only primary school math skills, and research suggests that weak math skills are linked with an array of poor life outcomes such as prison, unemployment, exclusion from school, poverty and long-term illness. 'We are paying for this in our science, technology and engineering industries but also in people's own ability to earn funds and manage their lives,' says Chris Humphries. He is the chairman of National Numeracy, an organization seeking to emulate the success of the National Literacy Trust, which has helped improve reading and writing standards since it was set up nearly 20 years ago. The Department for Education wants the vast majority of young people to study math up to 18 within a decade to meet the growing demand for employees with high level and intermediate math skills. 'It is simply inexcusable for anyone to say "I can't do maths,"' adds Humphries. "
Science

Warp Drives May Come With a Killer Downside 458

An anonymous reader writes "Alcubierre warp-drives (theoretically) allow rocket ships to travel faster than the speed of light, while staying within the rules of Einstein's general theory of relativity. New research (PDF) has shown that as such warp-drives zip through the universe, they gather up particles and radiation, releasing them in a burst as the warp-drive slows down. This is bad news for family and friends waiting for the ship to arrive, as this intense burst will fry them."
Programming

Computer Programmers Only the 5th Most Sleep Deprived Profession 204

garthsundem writes "As described in the NY Times Economix blog, the mattress chain Sleepy's analyzed data from the National Health Interview Survey to find the ten most sleep deprived professions. In order, they are: Home Health Aides, Lawyer, Police Officers, Doctors/Paramedics, Tie: (Economists, Social Workers, Computer Programmers), Financial Analysts, Plant Operators (undefined, but we assume 'factory' and not 'Audrey II'), and Secretaries."
Businesses

Science and Engineering Workforce Has Stalled In the US 433

dcblogs writes "The science and engineering workforce in the U.S. has flatlined, according to the Population Reference Bureau. As a percentage of the total labor force, S&E workers accounted for 4.9% of the workforce in 2010, a slight decline from the three previous years when these workers accounted for 5% of the workforce. That percentage has been essentially flat for the past decade. In 2000, it stood at 5.3%. The reasons for this trend aren't clear, but one factor may be retirements. S&E workers who are 55 and older accounted for 13% of this workforce in 2005; they accounted for 18% in 2010. 'This might imply that there aren't enough young people entering the S&E labor force,' said one research analyst."
Space

One In Eight Chance of a Financially Catastrophic Solar Storm By 2020 337

An anonymous reader writes "A privately employed solar scientist named Pete Riley estimates there's a 12 percent chance of a massive solar storm comparable to the Carrington Event in 1859 which resulted in breathtaking aurorae across the United States and other temperate regions of the globe. The electromagnetic surge from the 1859 event caused failures of telegraph systems across Europe and North America. A similar storm today could knock out power grids, GPS and communication satellites, data centers, transportation systems, and building and plumbing infrastructures and wreak $1 trillion or more of economic damage in the first year alone, according to a 2008 report from the National Academy of Sciences."
Wireless Networking

'Twisted' Waves Could Boost Capacity of Wireless Spectrum 147

New submitter Ogi_UnixNut writes "In Venice, Italy, physicists have shown that it is possible to use two beams of incoherent radio waves, transmitted on the same frequency but encoded in two different orbital angular momentum states, to simultaneously transmit two independent radio channels. In principle this allows the implementation of an infinite number of channels in a given, fixed bandwidth, even without using polarization, multiport or dense coding techniques. It's potentially a boon for congested spectrum problems, although at the moment I suspect it would only work for directional links."
Medicine

World's First Biodegradable Joint Implant Grows New Joints 102

cylonlover writes "Joint implants should always be made of materials like titanium, so they can last the lifetime of the patient ... right? Well, not according to researchers at Finland's Tampere University of Technology. They've developed a product known as RegJoint, which is reportedly the world's first biodegradable joint implant. Unlike permanent implants, it allows the patient's bone ends to remain intact, and it creates a new joint out of their own tissue."
NASA

NASA Squandering Technology Commercialization Opportunities 48

coondoggie writes "The commercialization of all manner of space technologies has always been a forte of NASA, but the space agency faces a number of economic and internal challenges if that success is to continue. A report by released this week (PDF) by NASA Inspector General Paul Martin that assesses NASA's technology commercialization efforts is highly critical of the space agency's ability to identify and get important technologies out of the lab and out the door to commercial applications."
News

Majorana Fermion May Have Been Spotted At TU Delft 73

vikingpower writes "A research group at Technical University Delft around prof. Kouwenhoven has probably not only spotted pairs of so-called Majorana Fermions for the first time (these had been predicted to exist by the Italian physicist Ettore Majorana), but also demonstrated that, by generating them at the end of an Indium-Arsenide microwire, quantum computing with them may have come one more step closer to reality. The excitement around Prof. Kouwenhoven at the American Physical Society annual congress in Boston, after he completed his presentation, was considerable.A nice illustration is provided by this newspaper article (in Dutch)."
Biotech

Controversial Bioethicist Resigns From Celltex 48

ananyo writes "Bioethicist Glenn McGee has resigned his position as president of ethics and strategic initiatives at the stem-cell firm Celltex Therapeutics in Houston, Texas. Yesterday, Slashdot posted a story that suggested Celltex may have administered unproven treatments to several patients. The move comes at the end of a turbulent three months, which has seen McGee blasted by other bioethicists for working at the controversial stem-cell company while also holding the post of editor-in-chief of the American Journal of Bioethics, the most cited bioethics journal in the world. McGee announced that he had resigned, effective 28 February, on Twitter last night — the move came just two weeks after the 13 February press release by Celltex announcing that he would take the position."
ISS

Stolen NASA Laptop Had Space Station Control Code 79

astroengine writes "NASA had 5,408 computer security lapses in 2010 and 2011, including the March 2011 loss of a laptop computer that contained algorithms used to command and control the International Space Station, the agency's inspector general told Congress Wednesday. According to his statement (PDF), 'These incidents spanned a wide continuum from individuals testing their skill to break into NASA systems, to well-organized criminal enterprises hacking for profit, to intrusions that may have been sponsored by foreign intelligence services seeking to further their countries’ objectives.'"
Hardware

Speech-Jamming Gun Silences From 30 Meters 370

MrSeb writes "Japanese researchers have created a hand-held gun that can jam the words of speakers who are more than 30 meters (100ft) away. The gun has two purposes, according to the researchers: At its most basic, this gun could be used in libraries and other quiet spaces to stop people from speaking — but its second application is a lot more chilling. The researchers were looking for a way to stop 'louder, stronger' voices from saying more than their fair share in conversation. The paper reads: 'We have to establish and obey rules for proper turn-taking when speaking. However, some people tend to lengthen their turns or deliberately interrupt other people when it is their turn in order to establish their presence rather than achieve more fruitful discussions. Furthermore, some people tend to jeer at speakers to invalidate their speech.' In other words, this speech-jamming gun was built to enforce 'proper' conversations."
Biotech

Flesh-eating Bacteria Inspires Highly Selective Instant Adhesive 52

cylonlover writes "A strong and highly selective instant adhesive inspired by the bacterium Streptococcus pyogenes has been developed by Oxford University researchers. S. pyogenes is a common resident of human throats that is normally kept in check by the body's defenses, but when it gets out of control it can cause diseases ranging from strep throat to toxic shock syndrome or flesh-eating disease. By engineering a protein that is central to S. pyogenes' infectious arsenal, the researchers have developed a new superglue that can't be matched for sticking molecules together and not letting go."
Biotech

Stem Cell Firm May Have Administered Unproven Treatments 221

ananyo writes "With Texas pouring millions of dollars into developing adult stem-cell treatments, doctors there are already injecting paying customers with unproven preparations, supplied by an ambitious new company. Celltex Therapeutics 'multiplies and banks' stem cells derived from people's abdominal fat and its facility in Sugar Land opened in December 2011 and houses the largest stem-cell bank in the United States. But Nature has uncovered evidence that the company is involved in the clinical use of the cells on US soil, which the FDA has viewed as illegal in other cases."
NASA

Commercial Suborbital Balloon Flight Facility Takes Shape 54

coondoggie writes "The Near Space Corporation this week said it would begin developing a $6.9 million phase of what it says is the first commercial high altitude balloon flight facility in the country. Commercial balloon flights to near space will be launched – though the company didn't say when — from the new facility in Tillamook, Oregon, including several of those reserved through the NASA's Flight Opportunities Program."
China

China May Restrict Genetically Engineered Rice 183

An anonymous reader writes "China's State Council has released a proposal for a grain law that establishes legislation restricting research, field trials, production, sale, import and export of genetically engineered grain seeds, the first initiative in the world that deals with GE food legislation at state law level. Monsanto had tried and failed to commercialize GE wheat in Canada. Now they were hoping China would become the first guinea pig, opening the gate to genetic experiments with staple crops."
The Internet

Seti Live Website To Crowdsource the Search For Alien Life 90

bs0d3 writes "Scientists need your help in the search for life beyond Earth. The SETI Institute is asking the public to join in its hunt for signals from intelligent civilizations out there in the universe. Anyone can register on the new website, SETI Live, to help analyze data from SETI's radio telescope devoted to scanning the heavens for signals from E.T.."
Science

The Inside Story of Virgin Oceanic's Mission To the Mariana Trench 93

the_newsbeagle writes "Millionaire adventurer Chris Welsh, the driving force behind Virgin Oceanic, wants to name his sub "Scarlett" after Scarlett Johansson—that's how sexy this vehicle is. Welsh plans to pilot the experimental, cutting-edge sub to the bottom of the Mariana Trench sometime this year, in what would be only the second human descent to the deepest spot in the world's oceans (the first trip down was in 1960). This inside account of the Virgin Oceanic mission describes a team fueled by ego, science, and derring-do, and explains how their high-tech sub could usher in a new kind of marine exploration. The article also tells the story of an adventure on the high seas last summer, when Welsh & co visited the trench to test some robotic deep-sea landers... and ran smack into a typhoon."
Science

Huge Jurassic Fleas May Have Fed On Dinosaurs 85

ananyo writes "Primitive fleas were built to sup on dinosaur blood in the Jurassic period, more than 150 million years ago. The potential host–parasite relationship has been uncovered thanks to a set of beautifully preserved fossils found in China. Today, the varied group of parasitic insects known as fleas frequently infests mammals and birds. But little is known about their origins. Researchers have now extended the history of the parasites by at least 60 million years. Whereas modern fleas range from 1 to 10 millimeters in length, the Jurassic and Cretaceous species were between 8 and 21 millimeters. The Jurassic and Cretaceous fleas also lacked the spring-legged, jumping specializations of modern species, and their siphoning mouthparts were armored structures studded with saw-like projections, unlike the smooth jaws of modern fleas."
Math

The Math of Leap Days 225

The Bad Astronomer writes "We have leap days every four years because the Earth's day and year don't divide evenly. But there's more to it than that... a lot more. A year isn't exactly 365.25 days long, and that leads to needing more complicated math and rules for when we do and don't have a leap year. If you've ever wanted to see that math laid out, now's your chance, and it only comes along every four years. Except every hundred years. Except every four hundred years."

Slashdot Top Deals