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" Many new technologies come with a promise to change the world, but the world refuses to cooperate. "
Henry Petroski
New
Change The World
Change
Related Quotes:
" Case studies of failure should be made a part of the vocabulary of every engineer so that he or she can recall or recite them when something in a new design or design process is suggestive of what went wrong in the case study. "
Henry Petroski
Design
Failure
Process
" No design, no matter how common or seemingly insignificant, is without its adamant critics as well as its ardent admirers. "
Henry Petroski
Critics
Well
Matter
" The definition of 'safe' is not strictly an engineering term; it's a societal term. Does it mean absolutely no loss of life? Does it mean absolutely no contamination with radiation? What exactly does 'safe' mean? "
Henry Petroski
Loss
Safe
Engineering
" For as long as I can remember, I have been fascinated by things large and small. I wanted to know what made my watch tick, my radio play, and my house stand. I wanted to know who invented the bottle cap and who designed the bridge. I guess from early on I wanted to be an engineer. "
Henry Petroski
Stand
Bridge
Long
" Engineering is achieving function while avoiding failure. "
Henry Petroski
Engineering
Achieving
Failure
" The space shuttle was designed, at least in part, to broaden our knowledge of the universe. To scientists, the vehicle was a tool; to engineers, it was their creation. "
Henry Petroski
Knowledge
Universe
Space
" You can almost say that a design error is a human error because, after all, it's we humans who do the designing. "
Henry Petroski
You
Almost
Because
" Because every design must satisfy competing objectives, there necessarily has to be compromise among, if not the complete exclusion of, some of those objectives, in order to meet what are considered the more important of them. "
Henry Petroski
Important
Design
Compromise
" Because they are so humbled by their creations, engineers are naturally conservative in their expectations of technology. They know that the perfect system is the stuff of science fiction, not of engineering fact, and so everything must be treated with respect. "
Henry Petroski
Respect
Technology
Science
" A common misconception about how things such as space shuttles come to be is that engineers simply apply the theories and equations of science. But this cannot be done until the new thing-to-be is conceived in the engineer's mind's eye. Rather than following from science, engineered things lead it. "
Henry Petroski
Science
Mind
Done
" I employ case studies of failure into my courses, emphasizing that they teach us much more than studies of success. It is not that success stories cannot serve as models of good design or as exemplars of creative engineering. They can do that, but they cannot teach us how close to failure they are. "
Henry Petroski
Good
Success
Failure
" It has been said, by engineers themselves, that given enough money, they can accomplish virtually anything: send men to the moon, dig a tunnel under the English Channel. There's no reason they couldn't likewise devise ways to protect infrastructure from the worst hurricanes, earthquakes and other calamities, natural and manmade. "
Henry Petroski
Money
Moon
Enough
" As long as there are things to wonder about, there are stories to be written about them. That makes me happy, because writing about things seems to be my thing. "
Henry Petroski
Happy
Writing
Wonder
" I emphasize that virtually every engineering calculation is ultimately a failure calculation, because without a failure criterion against which to measure the calculated result, it is a meaningless number. "
Henry Petroski
Engineering
Failure
Measure
" I relax by looking at things and reading about things. Even the simplest thing can reveal a great deal about the world around us. It relaxes me greatly to sit back with my feet up and look around my study at the everyday things that surround me. "
Henry Petroski
World
Reading
Great
" Companies selling a product play down its vulnerability and emphasize its robustness. But only after technology leaves the dock is it really tested. For human operators in control of a supposedly infallible system, complacency and overconfidence can take over, and caution may be thrown to the wind. "
Henry Petroski
Wind
Technology
Complacency
" Failure is central to engineering. Every single calculation that an engineer makes is a failure calculation. Successful engineering is all about understanding how things break or fail. "
Henry Petroski
How
Understanding
Engineering
" Any design, whether it's for a ship or an airplane, must be done in anticipation of potential failures. "
Henry Petroski
Ship
Design
Done
" An over-reliance on past successes is a sure blueprint for future failures. "
Henry Petroski
Sure
Past
Future
" If I could go upstairs and write every day, I would be happy. I don't need recreation. "
Henry Petroski
Day
Every Day
Happy
" As engineers, we were going to be in a position to change the world - not just study it. "
Henry Petroski
World
Change
Change The World
" Everything we do is designed, whether we're producing a magazine, a website, or a bridge. Design is really the creative invention that designs everything. "
Henry Petroski
Design
Website
Bridge
" Too much redesign has to do more with fad and fashion than with fitness and function. It is change for the sake of change. Such redesign is not only unnecessary, it is all too often also retrogressive, leading to things that work less effectively than those they were designed to replace. "
Henry Petroski
Fashion
Change
Work
" Luxury, not necessity, is the mother of invention. Every artifact is somewhat wanting in its function, and that is what drives its evolution. "
Henry Petroski
Evolution
Luxury
Invention
" The same aspirations to celebrate and uplift the spirit that drove the Egyptians to build the pyramids are still driving us. The things we're doing differ only in magnitude. "
Henry Petroski
Celebrate
Build
Doing
" Successful design is not the achievement of perfection but the minimization and accommodation of imperfection. "
Henry Petroski
Imperfection
Perfection
Achievement
" It is really want, rather than need, that drives the process of technological evolution. "
Henry Petroski
Want
Need
Evolution
" I'm a firm believer that no matter how small an object is, you can find interesting things out about it and its history. "
Henry Petroski
Find
History
Interesting
" Many of the familiar little things that we use every day have typically evolved over a period of time to a state of familiarity. They balance form and function, elegance and economy, success and failure in ways that are not only acceptable, but also admirable. "
Henry Petroski
Success
Time
Failure
" Successful engineering is all about understanding how things break or fail. "
Henry Petroski
Successful
Understanding
Engineering