safety glass is like a sandwich

Categories: Comparisons

An analogy used to explain a science concept:

"The name 'triplex' coined for the new safety glass referred to the design of the material: it consisted of a sandwich in which two sheets of glass acted as the bread and the meat as a sheet of cellulose nitrate between them; the three sheets of transparent material were bonded together by heat."

Royston M. Roberts (1989) Serendipity. Accidental discoveries in science

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Author: Keith

Former school and college science teacher, teacher educator, research supervisor, and research methods lecturer. Emeritus Professor of Science Education at the University of Cambridge.