Links for 28th October 2009

Fresh from the clogged tubes of teh intarwubs…

  1. Detroit: Where Private Security Is Booming

    "Members of the Historic Indian Village Association, a local residents' group, share the cost of private security — about $30 per household each month. Association president Doug Way, 42, moved to Detroit with his wife seven years ago and fell in love with Indian Village's 19th century manors, built for the city's emerging industrial barons. Footing the bill for private security is almost like paying an extra tax, he acknowledges, but it's worth the cost. The median sale price of homes in Detroit has plunged from $59,700 in August 2005 to $8,000 just two months ago. "You could argue that one reason the homes are less expensive in the city is the level of services isn't as high," he says. "If there's some way we can make this a better place to live, these homes will actually be worth a lot more in the long term.""

    Tagged with: Detroiturbandeclinedecayprivate-securityburbclaves

  2. Quantum gravity theories wiped out by a gamma ray burst

    "The discovery suggests that massive stars were being born and exploding in very short order after the birth of the universe. The similarity of the burst with more modern ones suggests that, on some levels, the early universe wasn't entirely different from its current state. It also raises the prospect that we can use further bursts of this age to study the Cosmic Dark Ages, when the gasses that make up much of the visible matter of the universe had cooled enough to form neutral atoms, absorbing much of the light. This period ended as the first stars started re-ionizing these atoms, allowing light to propagate across the Universe. This era started at about 800 million years post-big bang, so GRB 090423 may provide a window into the era."

    Tagged with: cosmologyastrophysicsquantumgravitytheoryuniverse

  3. Xerox develops silver ink to usher in new era of low cost printable electronics

    "Printable electronics promises to make the mass production of thin, cheap and flexible electronic circuits a reality, but researchers have been faced with the difficult challenge of developing conductive electronic inks that work in an ordinary, everyday environment. By creating a silver ink to print the conductor, Xerox has developed all three of the materials necessary for printing plastic circuits.

    Using Xerox's new technology, circuits can be printed just like a continuous feed document without the extensive clean room facilities required in current chip manufacturing. In addition, scientists have improved their previously developed semiconductor ink, increasing its reliability by formulating the ink so that the molecules precisely align themselves in the best configuration to conduct electricity."

    Tagged with: fabbingelectronicscircuitprintingsilverconductiveink

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