Uncategorized
-
19225
Your article on home-water disinfection in Africa reminds me of a water treatment method proposed a long time ago. It consisted of a long (200-foot), U-shape tube sunk in the ground as part of the water-delivery system. No organism could survive the pressure at the bottom of it. Lawrence EldenDearborn, Mich.
- Earth
A Safe Solution
A home-based technique for treating microbe-contaminated water with chlorine solution could save millions of lives in countries that are currently unable to provide residents with safe drinking water.
- Materials Science
Technique may yield vocal cord stand-in
A plastic material used in some biological implants could someday form a foundation for tissue that can repair or replace human vocal cords.
