As a droplet of liquid evaporates, any particles suspended in the liquid will naturally migrate to the edge of the droplet, leaving behind a “coffee-ring” pattern when the liquid fully dries. UC ...

A man was electrocuted Tuesday after coming into contact with the third rail on Metro tracks at a station in the Westlake District, authorities said. Firefighters responded about 11:30 a.m. to the ...

Tired of earbuds that vanished months ago or headphones that can’t commit to playing a full song without cutting out? Same.