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By Ron Taylor   In my father’s generation, leaders were expected to give orders and workers were expected to take them. You did what you were told to do or you were fired.

Boston’s Central Artery/Tunnel Project, commonly known as the Big Dig, was the largest, most complex, and most technically challenging highway project in American history.

By Kerry Ellis   According to the World Bank, more than 1.1 billion people do not have access to clean, safe water, and 1.6 million children die each year as a result of illness related to inadequate water supply and sanitation.

By Don Cohen   NASA’s Chief Technologist talks about fostering innovation.

By Laurence Prusak One of the great questions in history is why the Industrial Revolution that started in the eighteenth century and went on to radically change almost every aspect of the way people live developed in the West, and especially the northwest corner of Europe.

By Ed Hoffman   Last spring I had the opportunity to visit three project-based organizations in the Piedmont region of Italy.

Don Cohen, Managing Editor   This issue of ASK features two apparently divergent themes. One is the importance of far-reaching innovation.

  By Bo Schwerin   Medical technology developed for the space station improves remote diagnostics on Earth.

NASA in the News   NASA is seeking private and corporate sponsors for the Centennial Challenges, a program of incentive prizes designed for the “citizen inventor” that generates creative solutions to problems of interest to NASA and the nation.