Excerpt from Aeroplanes in Gusts: Soaring Flight and the Stability of Aeroplanes The mathematics, which some pages of the book may appear to contain, will, on inspection, be seen to be hardly more than symbolic arithmetic; and, more over, owing to the use made Of graphical constructions, the physical meanings of the steps of the arguments may Often be followed quite independently of the quantitative work. Since progress in all the sciences has depended, as is well known (though the knowledge is not always applied), upon satisfactory measures being employed for the quantities concerned, the very first duty of this work is to state, in Chapter I., a suitable measure of a gust, or, in other words, the how much of a gust. That done, a great part Of the rest of the book is mere routine work, that, for academic purposes, but not without sacrificing the simple pioneer character of the book, could have been carried much further into details. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.