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Asides

Lifesaver water filter

Check out this TED talk by engineer Michael Pritchard, who invented a portable water filter that filters down to 15 nanometers. While the initial cost looks high (over $100), running costs are only .5c per day. The comments and discussion that follow the video are interesting.

Discussion

One comment for “Lifesaver water filter”

  1. I watched the video and the filter looks great.

    Posted by Johan | September 19, 2009, 3:49 pm

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