Handbook of the steam-engine. Containing all the rules required for the right construction and management of engines of every class, with the easy arithmetical solution of those rules. Constituting a key to the 'Catechism of the steam-engine.' (1874)
Bourne, John · New York, D. Appleton · leaf 59
e, by transforming the pounds into shillings, wesee that 400 shillings bear the same relation to 20 shillings that20 shillings bear to 1 shilling; or, in other words, 400: 20 ::20: 1. If we take a rectangular figure such as abcd, say 4 incheslong and 1 inch wide, and if we enlarge this figure by… … .s because the enlargement was not made proportionally, andthe diagonal af consequently does not lie in the same line as the 44 ARITHMETIC OF THE STEAM-ENGINE. diagonal ao. To make the enlargement proportional, we shouldonly have extended ab 1 inch, when we extended ad 4 inches Eiff. 3.
Steam-engines
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