Photo courtesy of TEDx Engineer Imad Naffa, at industry conference in May, was a strong advocate of social networking. Related Links: TEDx Dead Sea Imad Naffa Video Imad Naffa, a civil engineer and building code software developer who propelled his "passion for people" to become a global social media networking phenomenon, died suddenly on Sept. 6 in Fresno, Calif. He was 49 and suffered a fatal heart attack, according to a Twitter post by Loretta Naffa, his wife and office manager.The death of Naffa, a self-proclaimed "Twitterologist," generated a buzz among his followers, who numbered more than 56,000, making him
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.