CHEMICAL

One of the first distinctions that must be made is between science and engineering. It is not a simple distinction because the two are so interdependent and intertwined, but whatever difference there is needs to be considered.

Science is the study of “natural” phenomena. It is the collection of theories, models, laws, and facts about the physical world and the methods used to create this collection. Physics, chemistry, biology, geology, etc. try to understand, describe, and explain the physical world that would exist even if there were no humans. It is creative in building theories, models, and explanations, but not in creating the phenomena that it studies. Science has its own philosophy with an epistemology, esthetics, and logic. It has its own technology in order to carry out its investigations, build its tools, and pursue its goals. Science has its organizations, culture, and methods of inquiry. It has its "scientific method" which has served as a model (for better or for worse) in many other disciplines.

Science is old. It was part of the original makeup of a university or college in the form of natural philosophy. It came out of antiquity, developed in the middle ages, blossomed in the renaissance, was the tool of the enlightenment, and came into its present maturity in modernity. Indeed, the history of science is, in some ways, a history of intellectual development. This is certainly only true in conjunction with many other strains of philosophical, economical, theological, and technological development, but science is a central player in that story. Science is often paired with the arts (and Humanities and Social Sciences) in the “College of Arts and Science” of a traditional university.

Engineering is the creation, maintenance, and development of things that have not existed in the natural world and that satisfy some human desire or need. A television set does not grow on a tree. It is the creation of human ingenuity that first fulfilled a fantasy of a human need and then went on to change the very society that created it. I use the term "things" because one should include computer programs, organizational paradigms, and mathematical algorithms in addition to cars, radios, plastics, and bridges.

Science is the study of what is and engineering is the creation of can be. Only recently has engineering developed the set of characteristics that make it a legitimate academic discipline. Earlier, engineering often was viewed only as the application of natural science. Now, engineering has developed its own engineering science for the study of human made things to supplement natural science which was developed to study natural phenomena. Parts of computer science are wonderful examples of that. Engineering has its own philosophy and methodology and its own economics. It even has its own National Academy.

We differentiate science and engineering, not because their difference is great, but because, in many ways, it is small. Science could not progress without technology, and engineering certainly could not flourish without science and mathematics.

A more illuminating comparison might be between the humanities and engineering. One might find more similarity in style (not content) between English literature and engineering than between science and engineering. Both literature and engineering are the study of human created artifacts. Both teach creation in the form of creative writing and engineering design. Both teach analysis in the form of literary criticism and engineering analysis. Both are intimately connected with the needs and desires of individuals and society. A similar analogy could be made between art and engineering looking at studio art, art criticism, and art history.

Most scientists (but not all) feel there is some unique objective truth behind the physical phenomena they are studying. Their goal is to find it and describe and explain it, and this truth is unique although the approaches and approximations to it are certainly not. In literature and engineering, the designed entity is not unique to the situation, but it is a creation of the particular writer or designer and perhaps unique to the creator.

The distinctions of this section are not as clean or clear as have been presented here. The boundary between science and engineering can be and often is murky. Many items of study in science are influenced if not literally created by people. This is obviously true in biology and the life sciences but also true in physics where certain elements in the periodic table do not exist in nature. Perhaps, therefore, the areas of pure science are very limited. On the other hand, since people are members of our natural system, an argument can be made that their products are as natural as anything else and, therefore, the areas of pure scientific study are very broad. Clearly engineering is constrained in what it can create by the laws of science as everything is. Nevertheless, there is a difference in spirit in the two disciplines worth trying to delineate.