- Top secret wartime experiments were conducted off the
New Zealand coast to perfect a tidal wave bomb believed to be potentially
as effective as the atom bomb, a report said yesterday citing declassified
files.
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- Auckland University professor Thomas Leech set off a
series of underwater explosions triggering mini-tidal waves at Whangaparaoa,
just north of Auckland, in 1944 and 1945, the New Zealand Herald reported.
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- His work was considered so significant that US defense
chiefs said if the project had been completed before the end of the war
it could have played a role as effective as that of the atom bomb.
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- Details of the tsunami bomb, known as Project Seal, are
contained in 53-year-old documents released by the New Zealand Ministry
of Foreign Affairs and Trade.
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- Papers stamped "top secret" show the US and
British military were eager for Seal to be developed in the post-war years
too. They even considered sending Leech to Bikini Atoll to view the US
nuclear tests and see if they had any application to his work.
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- He did not make the visit, although a member of the US
board of assessors of atomic tests, Dr. Karl Compton, was sent to New Zealand.
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- "Dr. Compton is impressed with Professor Leech's
deductions on the Seal project and is prepared to recommend to the Joint
Chiefs of Staff that all technical data from the test relevant to the Seal
project should be made available to the New Zealand Government for further
study by Professor Leech," said a July 1946 letter from Washington
to Wellington.
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- Leech, who died in his native Australia in 1973, was
the university's dean of engineering from 1940 until 1950.
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- News of his being awarded a CBE in 1947 for research
on a weapon led to speculation in newspapers around the world about what
was being developed.
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- Though high-ranking New Zealand and US officers spoke
out in support of the research, no details of it were released because
the work was on-going.
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- A former colleague of Leech, Neil Kirton, told the New
Zealand Herald that the experiments involved laying a pattern of explosives
underwater to create a tsunami.
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- Small-scale explosions were carried out in the Pacific
and off Whangaparaoa, which at the time was controlled by the army.
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- It is unclear what happened to Project Seal once the
final report was forwarded to Wellington Defense Headquarters late in the
1940s.
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- The bomb was never tested full scale, and Kirton doubts
the public would have noticed the trials.
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- "Whether it could ever be resurrected ... Under
some circumstances I think it could be devastating," he said.
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