In a metal like copper, however, the outer electrons swim around freely and are shared by all the atoms. That’s why ...

BOSTON - In a letter to Boston Mayor Michelle Wu, several Boston City Councilors are calling for zero tolerance on school violence, and asking the city to beef up police and add more metal detectors ...

Students taking summer classes at John I. Leonard High School in Greenacres became some of the first students in the county to test freestanding metal detectors. It took about two minutes for 40 ...