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Spearfishing: The mother of invention

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You get a lot of time to think, hunched for hours in a chair over a spearfishing hole in a darkhouse.

Time to think about that spear — or that chair.

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Yes, gazing into the underwater world of a Minnesota winter, it turns out, is the mother of invention. So it was with Loren Hjelle and Myron Isaacson.

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