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December 18, 2006

Harvesting the underwater forest

artist rendering of swordfish in action

This seems like something right out of an alternative future...like rocket belts or houses in the sky. A Canadian company called Triton Logging specializes in logging underwater forests -- forests that have been completely submerged by dam construction. They say worldwide more than 300 million market sized trees, worth $50 billion, are under water right now, and they're out to get 'em.

To pull this off, they've created a robotic sub called The Sawfish. The Sawfish dives beneath the water, clamps onto the tree trunk, attaches a large airbag to the tree to help with buoyancy, and then cuts through the trunk with its built-in bad-ass 55 inch chain-saw. The tree bobs to the surface where it's easily retrieved.

Here's a brief article from the Globe and Mail about the Sawfish.

(Thanks nxtbot.com)


Posted by Chris Spurgeon at December 18, 2006 06:44 AM


Uhhh.... beavers?

Posted by: Dr Foo at December 18, 2006 10:53 AM

Beavers don't harvest 4-foot diameter trees that are under a hundred feet of water.

And if they do, I sure as hell don't want to meet those beavers.

Posted by: Chris Spurgeon at December 18, 2006 11:17 AM