Secret wartime experiments were conducted off the New Zealand coast to perfect a bomb that could trigger devastating tidal waves, according to government files declassified in Auckland. The New Zealand Herald, citing the files, said that senior United States defence officials believed the weapon had the potential to be as deadly as the atomic bomb. But the tsunami bomb, as it was known, was never fully tested and the war ended before the project was completed. Its mastermind was Thomas Leech, an Australian professor who as the dean of engineering at Auckland University from 1940 to 1950. He was seconded to the New Zealand Army during the Second World War. He set off a series of underwater explosions that triggered mini tidal waves at Whangaparaoa, just north of Auckland, in 1944 and 1945. Details of the research, known as Project Seal, are contained in 53- year-old documents released by the New Zealand Ministry of Foreign Affairs and Trade. What happened to Project Seal once the final report was forwarded to Wellington in the late 1940s is not clear.
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