Pure Home Water has reached more than 100,000 poor rural women, children, and families with safe drinking water via ceramic pot filters produced at a factory in Tamale, Ghana.Photo courtesy of the researcher
Said Ahmed, a sophomore at the MATCH School in Boston, displays his self-powered aircraft at the SEED Academy final presentation on May 8. Ninth-graders studied mechanical engineering and built catapults while the 10th-graders worked in aeronautics and astronautics. Photo / MARK MORELLI
A version of this article appeared in MIT Tech Talk on May 14, 2003.