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No. 57: May-Jun 1988

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Outrageous Earthquake Waves

"Shock waves produced by earthquakes travel faster through the earth when going in a north-south direction than when they travel east-west.

"When these waves, called seismic waves travel east-west they take two seconds longer to reach a point on the other side than if they travel north-south. The measurements of velocity take the slightly wider girth of the Earth from east to west into account."

D. Anderson, director of Cal Tech's seismological laboratory states, "all of the possible explanations of this phe nomenon are outrageous."

The "least outrageous" explanation for the anomaly is that the earth's outer core is not a pure liquid, but more like a slurry of aligned solid particles.

(Anonymous; "Earthquake Waves Give 'Outrageous' Result," New Scientist, p. 38, February 18, 1988.)

From Science Frontiers #57, MAY-JUN 1988. 1988-2000 William R. Corliss

Science Frontiers Sourcebook Project Reviewed in:

Quotes

  • "A sourcebook of unexplained phenomena is therefore a valuable addition to a collection of scientific literature. William R. Corliss has provided this in the past with his source books of scientific anomalies in several subjects, and now he has provided it for astronomy. He has done an excellent job of collecting and editing a large amount of material, taken in part from scientific journals and in part from scientific reporting in the popular or semi-scientific press." -- "The Mysterious Universe: A Handbook of Astronomical Anomalies", reviwed by Thomas Gold, Cornell University, in Icarus, vol.41, 1980

  • "An interesting, systematic presentation of unusual weather [..] This book is recommended for a general audience" --"Corliss, William R., Tornados, Dark Days, Anomalous Precipitation, and Related Weather Phenomena, Sourcebook Project, 1983.", revieweed in Choice, September 1983
  • "..the science is necessarily somewhat speculative, but Corliss's symthesis is based on reputable sources." -- "Corliss, William R. (Compiler). Lightning, Auroras, Nocturnal Lights, and Related Luminous Phenomena" reviwed by Joseph M. Moran, Univ. of Wisconsin in Science Books and Films, Sep/Oct 1983

  • "Before opening the book, I set certain standards that a volume which treads into dangerous grounds grounds like this must meet. The author scrupulously met, or even exceeded those standards. Each phenomenon is exhaustively documented, with references to scientific journals [..] and extensive quotations" -- "Book Review: The moon and planets: a catalog of astronomical anomalies", The Sourcebook Project, 1985., Corliss, W. R., Journal of the Royal Astronomical Society of Canada, Vol. 81, no. 1 (1987), p. 24., 02/1987