Scales and Balances: A Guide to Collecting - Couverture souple

Graham, J.T.

 
9780747802273: Scales and Balances: A Guide to Collecting

Synopsis

When prehistoric man picked up his first stone he would not appreciate that its weight was due to the effect of gravity on its mass. Soon, though, he would learn that large objects were sometimes lighter than smaller ones and that he would need an aid to help compare weights and values. Today, we accept weighing as part of everyday life, using its principles as measures of our idea of justice, but giving methods of weighing little thought. Weighing, however, is an ancient art, which has exercised the minds of philosophers, scientists, engineers and even the dishonest for at least 6000 years. This book shows how men strove to produce a machine which would compare more accurately, or more quickly, or would meet a special need or perhaps sell even more cheaply. With the aid of many illustrations and non-technical language, some essential knowledge of the principles of weighing is provided.

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À propos de l?auteur

The late JT Graham had a considerable collection of old scales and old weights and measures and was a senior officer in the weights and measures department of a large local authority. The late Maurice Stevenson, who revised this book for its third edition, was a senior inspector of weights and measures and also a keen collector of old scales and weights. As a member of the International Society of Antique Scale Collectors he contributed articles to its journal 'Equilibrium'

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Autres éditions populaires du même titre

9780852638408: Scales and Balances: A Guide to Collecting

Edition présentée

ISBN 10 :  085263840X ISBN 13 :  9780852638408
Editeur : Shire Publications, 1986
Couverture souple