""A Treatise Upon The Art Of Flying, By Mechanical Means: With A Full Explanation Of The Natural Principles By Which Birds Are Enabled To Fly"" is a book written by Thomas Walker in 1810. The book provides a detailed account of the principles of flight, exploring the mechanics of bird flight and how it can be replicated in machines. It covers topics such as aerodynamics, wing design, and the use of propellers and other mechanical devices to achieve...