Deeds of a Great Railway a Record of the Enterprise And Achievements of the Lon
Deeds of a Great Railway a Record of the Enterprise And Achievements of the Lon
G R S Darroch
The book Deeds of a Great Railway a Record of the Enterprise And Achievements of the Lon was written by author G R S Darroch Here you can read free online of Deeds of a Great Railway a Record of the Enterprise And Achievements of the Lon book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Deeds of a Great Railway a Record of the Enterprise And Achievements of the Lon a good or bad book?
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Our gunner experts (armchair no doubt as well as professional) will, of course, tell us that the flight of a shell is gyroscopic, this possibly in lucid contradistinction from that of the convex- shaped boomerang, which, according to reliable information, is gifted with the graceful, albeit inconvenient, art of returning to its original point of departure. The shell, however, ere it quits the muzzle of the gun, thanks to what is known as the rifling or grooving of the bore of the gun, thanks, t...oo, to the action of that indispensable little adjunct familiarly known as the copper band, is imparted with the vigorous twist, and THE ANCESTRAL CANNON-BALL 103 once launched in mid-air spins round its longi- tudinal axis, undeterred, like the gyroscope, either by force of gravity or by atmospheric pressure. This longitudinal spin is rendered eminently desirable, in fact imperative, for various reasons, of which length and explosive capacity of the projectile, accuracy in flight, diminished air- resistance in proportion to weight, and finally range, may be quoted as the more obvious desiderata.
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