Science and Technology: News & Views

Discussion in 'Members Corner' started by RPK, Aug 18, 2009.

  1. nrj

    nrj Stars and Ambassadors Stars and Ambassadors

    Nov 16, 2009
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    NASA satellite reveals new black hole info

    COLLEGE PARK, Md., May 26 (UPI) -- NASA says data from its Swift satellite have helped astronomers determine why only about one percent of supermassive black holes emit vast amounts of energy.

    Space agency scientists said the new data confirm black holes "light up" when galaxies collide, and the findings might offer insight into the future behavior of the black hole in our own Milky Way galaxy.

    The scientists said intense emission from galaxy centers, or nuclei, arises near a supermassive black hole containing between a million and a billion times the sun's mass. Giving off as much as 10 billion times the sun's energy, some of the active galactic nuclei include quasars and blazars.

    "Theorists have shown that the violence in galaxy mergers can feed a galaxy's central black hole," said Michael Koss, the study's lead author and a graduate student at the University of Maryland. "The study elegantly explains how the black holes switched on."

    Last edited: May 26, 2010
    Holy Triad and LETHALFORCE like this.
  2. sorcerer

    sorcerer Senior Member Veteran Member Senior Member

    Apr 13, 2013
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  3. Holy Triad

    Holy Triad Senior Member Senior Member

    Dec 16, 2018
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    Google announces the Pixel 4 will have FaceID, radar-powered gestures
    The Pixel 4 is getting a full face unlock package with cameras and IR sensors.


    Soli, or "Motion Sense" as it's being called in the Pixel 4, is powered by radar. Google's Advanced Technology and Projects team (ATAP) has been working on shrinking down radar into a tiny chip for the last five years. As originally pitched, Soli was capable of detecting a number of fine hand gestures, like tapping your thumb and index finger together for a virtual button press or rubbing the two fingers together to scroll or turn a virtual dial.

    Wow, a smaller/portable tr system...

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