University of Georgia professor William Kisaalita engineers simple, practical solutions — a milk chiller, a nutcracker and an egg incubator — for Africa's rural poor.
It's not insufficient schooling or a shortage of scientists. It's a lack of job opportunities. Americans need the reasonable hope that spending their youth preparing to do science will provide a satisfactory career.
Our Michael Haederle reports live from El Paso, where academics gathered at a conference looking for practical innovations to address the big problems.
Although solar energy is often seen as a technology tied either to spacecraft or terra firma, a new generation of engineers and adventurers is crafting solar-powered aircraft.