Henry Petroski

My first book, 'To Engineer Is Human,' was prompted by nonengineer friends asking me why so many technological accidents and failures were occurring. If engineers knew what they were doing, why did bridges and buildings fall down? It was a question that I had often asked myself, and I had no easy answer.

Nine years after I had my own accident, I find that in trying to go back to doing those things that I used to do just doesn't fit. Everything seems to just fall apart. I don't know why but I think it is because I am this new creature.

Over the past decade... while many businesses have pursued what I call 'business as usual,' I have been part of a different, smaller business movement, one that tried to put idealism back on the agenda.

Ironically, it is only when disaster strikes that the shuttle makes the headlines. Its routine flights attracted less media interest than unmanned probes to the planets or the images from the Hubble Telescope. The fate of Columbia (like that of Challenger in 1986) reminded us that space is still a hazardous environment.