Skip to content

Science

Global health researchers are working on cheap systems like a home-based pregnancy test that might work for malaria, diabetes or other diseases. A new chemical technique makes medically interesting molecules stick to regular paper — a possible route to building such paper-based diagnostics from paper you could buy at an office-supply store.

A team of University of Washington students designed a unique rocket motor and launched it 5 miles up to claim first prize this summer in the Intercollegiate Rocket Engineering Competition. The UW students built a new type of motor powered by a combination of solid paraffin and liquid nitrous oxide. So-called hybrid propulsion systems are a nontoxic, safer alternative to space agency rockets that use hazardous liquid propellants such as hydrazine, nitrogen tetroxide and fuming nitric acid. Safe but powerful…