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    Re: Chile and deltaT
    From: George Huxtable
    Date: 2010 Mar 3, 19:13 -0000

    Peter Hakel commented on a news item-
    http://www.msnbc.msn.com/id/35662192/ns/technology_and_science-space/?GT1=43001
    
    This gave rise to an old-fashioned rant from Frank, which is copied below.
    
    I know nothing about the outfit that produced that report, but I can see
    nothing seriously wrong with the resulting article, which has appeared in
    similar form in various news outlets around the World including my
    "Guardian" this morning.. The only serious error was Peter's, in confusing
    the predicted change in day-length, correctly stated in microseconds, to
    refer to milliseconds.
    
    Indeed, the piece brought to my attention a fact that I was previously
    unaware of, the seasonal change in Earth spin-rate, over the year. The fit
    to the observations, provided by Seidelmann in the "explanatory supplement",
    which correspond to the plots provided by Richard Langley in 2004 that Frank
    has reminded us about, account for  nearly a millisecond difference between
    the longest and shortest day. Exactly as the article stated. Indeed, the
    source, Richard Gross, pointed to cause as the momentum changes in
    atmospheric jet-stream, and ocean currents, just as I had hypothesised;
    though I seem to have seriously underestimated the magnitude of such
    effects.
    
    An example of Frank Reed denigration was his phrase about Gross; "supposedly
    of NASA JPL", who should for some reason be ashamed of himself. What was the
    "supposedly" intended to imply? Does he have any grounds for questioning
    that affiliation?
    
    But strangest of all was this criticism-
    "They're still pulling victims from the rubble in Chile, and people are
    profiting from death and destruction. They are profiting either directly in
    terms of the cash that the stories generate or indirectly by putting the
    media spotlight on some trivial research and the researchers who produce
    it."
    
    What, on Earth, has consideration of the geophysics involved, to do with
    whether or not they are still pulling victims from the rubble?
    
    George.
    
    contact George Huxtable, at  george@hux.me.uk
    or at +44 1865 820222 (from UK, 01865 820222)
    or at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.
    ----- Original Message -----
    From: "Frank Reed" 
    To: 
    Sent: Wednesday, March 03, 2010 5:36 AM
    Subject: [NavList] Re: Chile and deltaT
    
    
    For your future reference, the folks who wrote that article work for
    space.com. This is a "barely there" news organization staffed by mediocre
    journalists who have a bad habit of getting the details wrong. They also
    excel at taking press releases literally.
    
    These supposed changes in the Earth's axis of rotation due to earthquakes
    are miniscule, well below the normal variations. Nearly the same crap was
    published by various media outlets a few days after the big Sumatra
    earthquake. I would contend that these stories and the press releases that
    generated them are in the same category as "ambulance chasing". They're
    still pulling victims from the rubble in Chile, and people are profiting
    from death and destruction. They are profiting either directly in terms of
    the cash that the stories generate or indirectly by putting the media
    spotlight on some trivial research and the researchers who produce it. Even
    if they had waited a year or so for the immediate tragedy to be well behind
    us, this is still little more than a "golly gee whiz" story. They didn't
    measure anything. It's not an observation of the Earth's rotation. It is
    merely output from a computer program. It does nothing to enlighten any
    reader's understanding of geophysics or the natural world generally. Richard
    Gross, supposedly of NASA JPL, and also the media who fed off this, should
    be ashamed of themselves. And I can guarantee you this: if this devastating
    earthquake had happened in Califonia, there would be no gee-whiz stories
    about such silly trivia.
    
    Please, Peter, do not think that any of the above applies to you. It applies
    to the people who produced the article, not those who read it.
    
    -FER
    
    
    
    
    
    

       
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