CHEN212 (introduction to engineering).docx

CHEN212 (introduction to engineering).docx

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Ramzi Bou Khalil CHEN212 Chemical Engineering Spring 2013-2014 Difference between engineer and scientist Both are thoroughly educated in the mathematical and natural sciences, but the scientist primarily uses his knowledge to acquire new knowledge. Whereas the engineer applies the knowledge to design and develop useable devices (mechanical and computer), and structures (civil), and processes. In other words, the scientist seeks to know, but the engineer aims to do. Scientists explore what is. Engineers create what have not been. Engineering is viewed as an art as well as science. The engineers’ knowledge must be tempered with professional judgment. The engineer must weigh conflicting constraints (for each problem there is disadvantage when solving it, the engineer should choose the best solution). The engineer should make judgment based on knowledge, seeking a best optimum solution, and seeking answers to problems. Engineers utilize the materials and forces of nature. There is an almost unlimited list of materials both natural and manufactured on the bases of availability cost and physical properties (weight, strength, durability…). Engineers recognize that the earth supply of materials and energy is not limitless and they must be concerned by their conservation. This involves recycling and reuse of existing materials rehabilitation instead of replacement of old facilities… and also involves seeking new sources of energy. Engineers seek solutions that are economical (scientists do not care about money). That means that benefits must exceed the costs. Engineering must be practiced with appropriate
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  • Winter '15
  • Amir Alimohammad

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