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Search Results - Other, April 2007

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Bryan Bartley (left) and Allan Wiles (right).

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The original Vertical Shaft Impactor

Thirty-six years after the invention of the Barmac Vertical Shaft Impactor (VSI), co-creator Bryan Bartley demystifies some of the myths that still remain. Read more »

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Wednesday, 26 June, 2019 8:54pm
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