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  • Many UAVs Vulnerable To Directed-Energy Weapons
    By on November 20, 2013 | Comments Off  Comments

    mask.of.sanity writes “A New Zealand researcher has detailed ways that UAVs can be crashed using cheap tools like Herf guns and GPS jammers, and could even be downed by flying drones with more powerful radio. The attacks (podcast) interfere with the navigation systems used by flying drones and are possible because security was not designed into the architecture of some machines.”

    Read more of this story at Slashdot.


  • Powering Music Player With Kinetic Energy from Pants
    By on August 14, 2010 | Comments Off  Comments

    Talk about a dance, dance revolution: The Dancepants Kinetic Music Player, a shortlisted entry in Designboom’s Green Life competition, makes you work for tunes. Designed by Inesa Malafej and Arunas Sukarevicius from Lithuania, the Dancepants converts kinetic energy from running or dancing into electricity for your MP3 player.


  • Dark Energy Sheds New Light on Universe’s Expansion
    By on July 16, 2010 | Comments Off  Comments

    Through observations of massive galaxy clusters, scientists have made the most precise measurements to date of the effects of dark energy and gravity on cosmological scales. This work is an important step toward understanding why the expansion of the universe is accelerating.


  • ARM Designer Steve Furber On Energy-Efficient Computing
    By on February 26, 2010 | Comments Off  Comments

    ChelleChelle writes “By now, it has become evident that we are facing an energy problem — while our primary sources of energy are running out, the demand for energy is greatly increasing. In the face of this issue, energy-efficient computing has become a hot topic. For those looking for lessons, who better to ask then Steve Furber, the principal designer of the ARM (Acorn RISC Machine), a prime example of a chip that is simple, low power, and (more…)

  • Lifecycle Energy Costs of LED, CFL Bulbs Calculated
    By on November 30, 2009 | 1 Comment1 Comment  Comments

    necro81 writes “The NY Times is reporting on a new study from Osram, a German lighting manufacturer, which has calculated the total lifecycle energy costs of three lightbulb technologies and found that both LEDs and CFLs use approximately 20% of the energy of incandescents over their lifetimes. While it is well known that the newer lighting technologies use a fraction of the energy of incandescents to produce the same amount of light, it has not been (more…)

  • Electric Fish Turn Down Charge for Energy Efficiency
    By on September 29, 2009 | Comments Off  Comments

    Fish that use electric fields to sense their environments dim their signals to save energy during the day when they are resting.