Looking for earth x ray article using gravitational field

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Offline creationvger

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I am looking for a magazine article from between 92 - 98 where they x-rayd the Earth using its own gravitational field to do it. In the x-ray there were three large oval shaped objects that they claimed were not made of normal matter. How can I find this?

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Offline DoctorBeaver

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Looking for earth x ray article using gravitational field
« Reply #1 on: 12/01/2009 22:44:17 »
How can you X-ray anything using a gravitational field?
Fledgling science site at http://www.sciencefile.org/SF/content/view/54/98/ needs members and original articles. If you can help, please join.

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Offline RD

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Looking for earth x ray article using gravitational field
« Reply #2 on: 12/01/2009 22:53:49 »
Seismology is used to image Earth's interior: it's like sonar, not an x-ray.
http://www.scientificblogging.com/news/high_res_images_show_details_of_earths_structure

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Offline RD

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Looking for earth x ray article using gravitational field
« Reply #3 on: 12/01/2009 23:09:39 »
How can you X-ray anything using a gravitational field?

Maps of the variations in surface gravity can reveal hidden deformations in the crust like the Chicxulub crater...

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http://miac.uqac.ca/MIAC/chicxulub.htm
« Last Edit: 12/01/2009 23:16:51 by RD »

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Offline DoctorBeaver

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Looking for earth x ray article using gravitational field
« Reply #4 on: 12/01/2009 23:36:14 »
I know. But that's not X-ray.
Fledgling science site at http://www.sciencefile.org/SF/content/view/54/98/ needs members and original articles. If you can help, please join.

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Offline RD

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Looking for earth x ray article using gravitational field
« Reply #5 on: 12/01/2009 23:58:16 »
People do use the term "X-ray" to mean "image hidden structure", even though X-rays are not actually used.

Creationvger's "oval objects not made from normal matter" sound like science fiction to me,

although strictly speaking the Earth and its inner cores are "oval" (oblate spheroids).