A period of intense activity in the study of aerodynamics began In the 1880s. Daring pioneers designed gliders made of little more than wood and canvas and risked their lives to further our knowledge of flight. Louis Bleriots cross-channel flight of 1909 was made in a
simple monoplane with a three-cylinder engine and stick-and-rudder controls of the type still used today. World War I forced a fast rate of development, leading to more robust and manoeuvrable aeroplanes. (查看原文)
Before the advent of high-strength metal alloys and
reliable welding techniques, the most effective way of making a light, rigid airframe was to build it in wood and brace it with wire. There was nothing simple or crude about such structures, which employed hundreds of
intricate metal fittings and carefully selected timber. The wings of the Bleriot XI were designed to be detached and stacked alongside the fuselage for road and rail transport (查看原文)
0 有用 Amyvilian 2021-12-04 10:55:16
飞机百科全书 和飞行器百科不同（介绍飞机飞行历史）更适合小朋友阅读 图文并茂。
0 有用 Lynn 2017-03-02 21:31:28
一眼瞅到。满足好奇
0 有用 安身 2023-09-18 23:26:01 山东
有错别字
0 有用 量子 2021-10-22 21:31:02
人类从大地中提取了这么多的元素和能量出来，从地球的动物植物其他物种中提取了这么多，不仅满足了我们必须的，也满足了很多很多非必须的。这种情况，不能持续太久。我们作为the chosen one，应该做些正事。
0 有用 单宁 2021-12-28 22:06:33
一本可以走马观花的知识文献图册，趣味性差了些。