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Evidence Of Tunguska-type Impacts Over The Pacific Basin Around The Year
1178 A.D.

Abstract of poster presentation by Emilio Spedicato

   University of Bergamo, Piazza Rosate 2, 24129 Bergamo, Italy. email:
   emilio[at]ibguniv.unibg.it
   Presented at the SIS Conference: Natural Catastrophes during Bronze
   Age Civilisations (11th-13th July 1997)

   In year 1178 A.D., as related by Clube and Napier in their book The
   Cosmic Serpent, a strange event was observed to affect the Moon, which
   may be explained by a large impact on the hidden face, originating the
   Giordano Bruno crater. A number of observations suggest that
   catastrophic cometary or meteoritic impacts around the same time also
   affected the Pacific basin: Maori legends of great fires destroying
   forests and the moa bird, to be associated to the recently found
   Tapanui craters; dynastic changes and migrations throughout Polynesia;
   very intense El Niņo activity with flooding of the coastal Peruvian
   regions; demise of the local Moche civilizations, and the birth of the
   Incas civilization higher in the Andes; the emigration of the Aztects
   from the Pacific coast to the interior in the most well protected area
   from tsunams; unusually intense typhoon activity in the
   Chinese-Japanese see; unusually strong floods in Northern China with
   diversion of the course of the Huang Ho; unusually cold wheather in
   the Mongolian plateau, probably a main reason for the Mongolians
   invading nearby areas; a great sign in the sky seen by the boy Gengis
   Khan forecasting his future of world master; the number of comets seen
   in the sky as recorded by Chinese astronomers was unusually higher.
                    ___________________________________

   EMILIO SPEDICATO born in Milano, graduated in Physics and has been
   working since 1971 in numerical analysis (linear algebra and
   optimisation) and applied mathematics. His main work, with Abaffy and
   Broyden and several Chinese mathematicians, has been the development
   of the ABS algorithms, which unify the field of algorithms for solving
   linear algebraic equations and linearly constrained optimisation and
   provide novel and better methods than their classical counterparts
   (e.g. the implicit LX algorithm which is generally faster and more
   accurate and has less storage than the classical best algorithm,
   Gaussian elimination). Since 1979 he has been involved in the
   catastrophical reproach of homo sapiens history and related events in
   the Earth history. He has proposed that Hispaniola was the original
   location of Atlantis and is working on a project aiming to study
   mathematically the feasibility of a revised "polar model" approach to
   the history of the solar system (transition from a configuration with
   aligned planets in synchronous revolution around the Sun to the
   present configuration after capture of Jupiter at a time when homo
   sapiens already inhabited the Earth). He is professor of Operations
   Research at University of Bergamo.