I’D like to start today’s post with a special experience I had while working for NASA (I was a U.S. National Academy of Science/National Research Council senior research associate assigned to NASA-Johnson Space Center in the mid-70’s to assist with water quality issues on the proposed International Space Station and up and coming Space Shuttle). One of my many objectives was to work on reclaiming used water to drinkable (potable) standards. At that time about half of the launch weight o...


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