Saturday, June 7, 2008
History
It is astonishing that, after the development of the power driven airplane, and the realization of the impossibility of flying by means of human muscular power, we should have at last succeeded in constructing flying gliders, which without any expenditure of muscular energy are able to remain aloft under most weather conditions for long periods, and even actually to travel at a reasonable speed towards a desired objective. BOOK (3) SOURCE: New Master Pictorial Encyclopedia
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