Abstract
ABSTRACT ‘ black elephant ’ is an idea or invontion which is finally used industrially. A ‘ white elephant ’ is one which for one reason or another is not used. All laboratories produce good ideas, which do not come to fruition in industrial practico : sometimes ideas are ‘ before their time ’ ; sometimes an idea needs the enthusiasm of the inventor to develop it to full stature–a foster-paront loses interest in it before the inevitable difficulties have been overcome ; sometimes the cost of development is prohibitive ; and sometimes the invention is rendered obsolete by the march of science. Examples of these manifestations, taken from the work in the A.E.I. Research Laboratory, are discussed, the subjects considered depending upon instrumentation, new techniques and novel apparatus for their development. From the wealth of experience at these laboratories ideas and inventions are chosen relating to electron, optical and x-ray microscopy and their application to the study of wear, to dislocations in meta...
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