The know-how handed down today is not only the craft of single practitioners but also a vast literature of words, numbers, and pictures that describe and give directions. But just as important as accumulated practical knowledge is the contribution to technology that comes from understanding the principles that underlie how things behave—that is, from scientific understanding.
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Now engineering, the systematic application of scientific knowledge in developing and applying technology, has grown from a craft to become a science in itself. Scientific knowledge provides a means of estimating what the behavior of things will be even before we make them or observe them. Moreover, science often suggests new kinds of behavior that had not even been imagined before, and so leads to new technologies.
Engineers use knowledge of science and technology, together with strategies of design, to solve practical problems.
Technology provides the eyes and ears of science—and some of the muscle, too. The electronic computer, for example, has led to substantial progress in the study of weather systems, demographic patterns, gene structure, and other complex systems that would not have been possible otherwise.
Technology is essential to science for purposes of measurement i.e data collection, treatment of samples, computation, transportation to research sites, sample collection, protection from hazardous materials, and communication.
New instruments and techniques are being developed through technology that make it possible to advance various lines of scientific research.
Technology does not just provide tools for science, however; it also may provide motivation and direction for theory and research.
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