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Fwd = Gravity detector spots underground hideaways

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  • Frits Westra
    Forwarded by: fwestra@hetnet.nl URL: http://www.alphagalileo.org/ReadNotice.cfm?releaseid=5427 Original Date: 3 Feb 2001 01:29:15 -0000
    Message 1 of 1 , Feb 3, 2001
      Forwarded by: fwestra@...
      URL: http://www.alphagalileo.org/ReadNotice.cfm?releaseid=5427
      Original Date: 3 Feb 2001 01:29:15 -0000

      ========================== Forwarded message begins ======================

      Date Posted : 25 Jan 2001
      Dr Alice Larkin
      Institute of Physics
      0207 470 4800
      This release was under embargo
      26 Jan 2001 14:00
      Keywords :
      Earth Sciences, Physics, Technology,

      Gravity detector spots underground hideaways

      A new way of detecting underground bunkers or hideaways called gravity
      gradiometry is announced today in the Institute of Physics journal,
      Journal of Physics D: Applied Physics. Gravity gradiometry detects
      differences in the Earths gravitational attraction caused by hollows
      in the ground where underground stores or tunnels lie. Ways of finding
      underground hideaways include satellite image analysis and geophysical
      exploration techniques, but researchers in Massachusetts and New York
      say that only by merging existing techniques with gravity gradiometry,
      will results be conclusive.

      Moving a facility underground is one of the most effective ways to
      protect and conceal it. Such facilities include tunnels under the
      Korean demilitarised Zone, buried command and control bunkers in Iraq,
      as well as tunnels between Mexico and the United States used by drug
      traffickers. Identifying these facilities is an important priority for
      various federal agencies, but detecting them has always been a
      challenging problem.

      When a tunnel or underground facility is constructed, the mass of
      earth that is removed results in a weaker gravity signal at the
      surface. This is detectable with present instrumentation, but its
      sensitivity is not particularly good. To improve on this, the rate of
      change of gravity, rather than gravity itself, is calculated which is
      much more sensitive to underground facilities.

      In the not too distant future, sensitive gradiometers, employing
      recent cutting-edge technologies, will be more widely used to detect
      underground facilities, said Anestis Romaides of AFRL.

      Notes for Editors
      1. For further information on this research please contact Anestis J
      Romaides, Air Force Research Laboratory, Massachusetts, Tel: 00 1 781
      377 3486 Email: Anestis.Romaides@.... This paper will be
      published in Journal of Physics D: Applied Physics, Vol 34, Number 3.

      2. Journal of Physics D: Applied Physics is published by Institute of
      Physics Publishing, a wholly owned subsidiary of the Institute of
      Physics. For further information on this please contact: Jason Wilde,
      Tel: 0117 930 1116, Fax: 0117 929 4318, Email:
      jason.wilde@..., http://www.iop.org/Journals/jd

      3. For more information on this press release and other Institute
      activities, contact the Public Affairs Section: Alice Larkin, Press
      Officer, Tel +44 (0)20 7470 4800, Fax +44 (0)20 7470 4848, Email
      alice.larkin@... For more Institute of Physics press releases see

      4. The Institute of Physics is a leading international professional
      body and learned society with over 30,000 members, which promotes the
      advancement and dissemination of a knowledge of and education in the
      science of physics, pure and applied. It has a world-wide membership
      and is a major international player in:
      - scientific publishing and electronic dissemination of physics;
      - setting professional standards for physicists and awarding
      professional qualifications;
      - promoting physics through scientific conferences, education and
      science policy advice.

      The Institute works in collaboration with national physical societies,
      plays an important role in transnational societies such as the
      European Physical Society and represents British and Irish physicists
      in international organisations. In Great Britain and Ireland the
      Institute is active in providing support for physicists in all
      professions and careers, encouraging physics research and its
      applications, providing support for physics in schools, colleges and
      universities, influencing government and informing public debate.

      Peer reviewed publication and references
      Journal of Physics D: Applied Physics, Vol 34, No.3

      Reference URL : www.iop.org/Journals/jd

      � AlphaGalileo March 2000

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