For the last six years, patrons of the Brown County Public Library, nestled in rural Ohio, checked out portable Wi-Fi hot spots in droves. The 60 hot spots circulated more than 1,300 times a year, ...

When high explosives are subjected to sudden shock waves, such as from an impact or detonation, tiny regions of intense heat—called hot spots—form at microstructural defects such as pores. These hot ...