Gravitational waves, Einstein’s ripples in spacetime, spotted for first time

  • metta

    Posts: 39104

    Feb 12, 2016 1:41 AM GMT
    Gravitational waves, Einstein’s ripples in spacetime, spotted for first time




    http://www.sciencemag.org/news/2016/02/gravitational-waves-einstein-s-ripples-spacetime-spotted-first-time
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    Feb 12, 2016 5:55 AM GMT
    And about time. They told us that this thing would be able to operate as a telescope by this time. Weird though, they got the signal within a few days of turning on the new instrument, but it's been six months now... No word of additional signals? How likely is that?

    This may be the first data graph I've ever seen in which the Y axis is labeled as 10^-21 units. icon_eek.gif

    When they were building LIGO, I lived next to the cement plant where they made the concrete tunnel sections for it. The access road Tee'd into the highway at the same light as my apartment complex. I dodged those things going down the highway on trucks every day for about a year.



  • metta

    Posts: 39104

    Feb 13, 2016 10:03 AM GMT
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    Feb 13, 2016 10:20 AM GMT
    mindgarden saidAnd about time. They told us that this thing would be able to operate as a telescope by this time. Weird though, they got the signal within a few days of turning on the new instrument, but it's been six months now... No word of additional signals? How likely is that?

    This may be the first data graph I've ever seen in which the Y axis is labeled as 10^-21 units. icon_eek.gif

    When they were building LIGO, I lived next to the cement plant where they made the concrete tunnel sections for it. The access road Tee'd into the highway at the same light as my apartment complex. I dodged those things going down the highway on trucks every day for about a year.





    It *sounds* like they been running compute jobs against the sample for most of that six months; I caught just a little bit of an interview this morning but not enough to be sure of the context. If I understood correctly they knew when the device would have to be on, almost missed the event, and then spent months filtering and mining the data to be "sure" as well as adjusting pitches to make it audible.

    So until they design circuits and algorithms to do all the signal analysis in real time, definitely no telescope version.
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    Feb 15, 2016 10:41 AM GMT
    A man ahead of his time