(Financial Times) -- The increasing amount of personal information that can been gleaned by computer programs that track how people use Facebook has been revealed by an extensive academic study. Such programmes can discern undisclosed private information such as Facebook users' sexuality, drug-use habits and even whether their parents separated when they were young, according to the study by Cambridge university academics. In one of the biggest studies of its kind, scientists from the university's psychometrics team and a Microsoft-funded research centre analysed data from 58,000 Facebook users to predict traits and other information that were not provided in their profiles. The algorithms were 88 per cent accurate in predicting male sexual orientation, 95 per cent for race and 80 per cent for religion and political leanings. Personality types and emotional stability were also predicted with accuracy ranging from 62-75 per cent. Facebook declined to comment. The study highlights growing concerns about social networks and how data trails can be mined for sensitive information, even when people attempt to keep information about themselves private. Less than 5 per cent of users predicted to be gay, for example, were connected with explicitly gay groups. Michal Kosinksi, one of the report's authors, told the Financial Times that the university's techniques could easily be replicated by companies to infer personal attributes a person did not wish to share, such as sexual orientation or political views: "We used very simple and generic methods. Marketing companies and internet companies could spend much more time and resources, and hence get much higher accuracy than we did." Last week , the EU agreed to water down proposals for a radical overhaul of data privacy regulation. The move reflects governments' reluctance to impede internet businesses that might spur economic growth, and follows fierce lobbying from technology companies including Facebook and Google. Personal data has become big business. Wonga, the UK online lender, makes credit judgments within seconds based on thousands of pieces of information, including an applicant's Facebook profile. Tesco, the supermarket chain, this month started to use its customers' shopping histories to sell targeted online advertising. The report also revealed some unexpected correlations -- such as people who liked 'curly fries' having higher IQs, while those who like Facebook's "Sliding on Floors With Your Socks On" page were unlikely to use drugs. 

Has Facebook commented on the ability of computer programs that track how people use Facebook to discern undisclosed private information?


The idea that Earth is a magnet is far from new. It was first proposed in 1600 by a British physician named William Gilbert. Knowing it acts like a magnet is one thing. Knowing why it acts like a magnet is more difficult. In fact, finding out why is a fairly recent discovery. To find out why required new technology. It was the seismograph that made it possible to learn why the Earth acted like a magnet. Seismograph are used to study earthquakes. By studying earthquake waves they were able to learn about Earths interior. They discovered that Earth has an inner and outer core. The outer core consists of liquid metals, mainly iron and nickel. Scientists think that Earths magnetic field is generated here. It is caused by the motion of this liquid metal. The liquid metal moves as Earth spins on its axis. 

How does Earth create its magnetism?


When 74-year-old Penny Sweat was evicted from the HUD-subsidized Glendale Senior Housing in Salt Lake City last month, she moved to a nonsubsidized apartment at five times her previous rent because she was unaware of her rights. It turns out the manager of the seniors complex, its attorneys and government overseers were unaware, too. Lee Kemp, a hearing-impaired World War II disabled vet, also was evicted, but he contacted Utah Legal Services and was told to stay put. Attorney Marty Blaustein then notified Utah Nonprofit Housing Corp., the building's owner, that Kemp's eviction was not legal and that he had a right to a hearing. That didn't stop Utah Nonprofit Housing's attorneys from then sending Kemp a summons to show cause why he had not moved out. Meanwhile, Sweat's granddaughter called Salt Lake City housing officials, federal housing officials, state officials and several agents of Utah Nonprofit Housing to find out about her grandmother's rights. Nobody knew. Blaustein then took Sweat's case along with Kemp's and demanded her ousting be rectified. Utah Nonprofit Housing President Marion Willey returned from an out-of-town trip and learned HUD procedures were not followed. The eviction was activated because of ongoing personality conflicts among seniors in the complex, he said, and the new building manager decided the problems were with Sweat and Kemp. Several tenants blame other neighbors as perpetrators of the rift, however. Willey said when his building manager called attorneys retained by the company, they erroneously told her she could go ahead and kick out the tenants. When she called HUD to make sure, the inquiry got bogged down in bureaucracy and nobody called her back. Willey says he has offered Sweat and Kemp apartments in another complex operated by his company at their old rates. He also is retaining new attorneys. 


After the eviction of Penny Sweat, who was unaware of her rights?