Some Pittsburgh schools closed for the day over water issue

Insufficient chlorine in Pittsburgh's public water supply led to the closure Wednesday of nearly two dozen grade schools and a boil-water advisory in neighborhoods that include the University of Pittsburgh and Carnegie Mellon ...

Pollution from dead Ivy League lab mice worries neighborhood

Neighbors of Dartmouth College property where for years the Ivy League school disposed of mice and other small animals used in science experiments say they fear pollution from the site has contaminated their groundwater and ...

Bottle-brush design enhances cellular imaging

The bottle brush, with its long stalk and dense spray of plastic bristles, is the unsung hero of kitchens everywhere, fitting through the narrow necks of water bottles and vases and into the hard-to-reach interiors of mugs ...

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