back to article Slapnav: Looking for KINKY dark matter? Switch on the GPS!

Although our ancestors would have been amazed by GPS technology for the current generation it's pretty old hat. Nevertheless, scientists have come up with a new idea for using the network of positioning satellites that encircle our globe – the quest to find dark matter. In a paper published in the latest issue of Nature …

  1. Measurer
    Headmaster

    Sorry, but....

    'Our Solar System circles that centre of the galaxy at around 483,000 miles per hour (774 km/h), dragging the planets with it'

    km/h out by a factor of 1000.

    More to the point, how many frickin' double decker busses per hour, or even per second?

    1. willi0000000

      Re: Sorry, but....

      and some here on the left side of the pond (that's Murricans for you folks in the higher latitudes looking south) wonder why we occasionally hit Mars instead of orbiting.

      [oops]

    2. Mage Silver badge

      Re: Sorry, but....

      483,000 mph = 772,800 km / h very approx.

      Compare UK and other Country Speed limits.

    3. Robert Helpmann??
      Childcatcher

      Re: Sorry, but....

      Our Solar System sun circles that centre of the galaxy at around 483,000 miles per hour (774 km/h) 5,621,217 bn/h, dragging the planets with it.

      The planets are part of the Solar system, so they cannot be dragging themselves with themselves. Fixed that for you.

      1. Trevor_Pott Gold badge

        Re: Sorry, but....

        "The planets are part of the Solar system, so they cannot be dragging themselves with themselves."

        Don't we all drag eachother? :)

  2. Richard 12 Silver badge

    That's a pretty video, but it's utter b*****ks

    For a start, the planets orbit fairly close to the galactic plane.

    Having started wrong it rapidly turns mystical and turns from "simplification based on erroneous data" to outright stupidity.

    Very surprised to see it here.

    1. Chemist

      Re: That's a pretty video, but it's utter b*****ks

      "Having started wrong it rapidly turns mystical and turns from "simplification based on erroneous data" to outright stupidity."

      The (tedious) video also seems to be devoid of any significant connection to the rather interesting topic of topological defects in spacetime and their potential to be spotted by effects on time as measured by GPS synchronization.

    2. Anonymous Coward
      Anonymous Coward

      Re: That's a pretty video, but it's utter b*****ks

      For a start, the planets orbit fairly close to the galactic plane

      AFAIK the solar system plane is at ~60 degrees to the galactic plane.

      http://curious.astro.cornell.edu/question.php?number=633

      "Our own solar system is tipped by about 63 degrees with respect to the plane of the galaxy."

  3. John Smith 19 Gold badge
    Go

    Note the GPS were *not* the most accurate design.

    They were the most accurate design you could pack in a satellite small enough you could build 38 of and put in a 1000Km orbit, along with a chunk of TTL logic for the code generating.

    However they are available and they have a nice big back catalogue of data to chomp through.

    Clever idea. Let's see what happens.

  4. Anonymous Coward
    Anonymous Coward

    Isn't dark matter supposed to be mostly on the outer edge of the galaxy?

    It may not be evenly distributed, and may not be near our planet.

    1. Wzrd1 Silver badge

      Re: Isn't dark matter supposed to be mostly on the outer edge of the galaxy?

      Naw, that's the evicted dark matter, as if failed to pay its galactic rent.

      More seriously though, you're thinking of the dark matter halo around the galaxy. It's thought that dark matter may also be in clumps within the galaxy.

      Of course, the entire lot is just a theory. It may be that the detected mass isn't dark matter in the form science thinks it is and that it's really Dalek invasion forces staging areas.

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