Inventors at work, with chapters on discovery (1906)
Iles, George, 1852-1942 · New York, Doubleday, Page & company · leaf 38
ement the book now in thereaders hands. CHAPTER II FORM Form as important as substance . . . Why a joist is stirrer than a plank . .The girder is developed from a joist . . . Railroad rails are girders ofgreat efficiency as designed and tested by Mr. P. H. Dudley. ONE January morning in Canada I… … A lens of ice focussing a sunbeam. into a lens as large as a reading glass; tightly fastened in a wood-en hoop it focussed in the open air a sunbeam so as to set fireto a sheet of paper, and char on a cedar shingle a series of zigzaglines. There, indeed, was proof of the importance of form. Tohave…
Inventions · Inventors
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