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| | The Tunguska Fireball: Solving One of the Great Mysteries of the 20th CenturyOn 30th June 1908 a mysterious fireball exploded in the Siberian sky and flattened 2000 square kilometres of the remote Tunguska forest. As no crater and no material from outer space were ever found, a meteorite could not have caused this explosion. so what did? This book discusses all theories and then analyses the evidence.
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Mechanical Engineer's Handbook (Engineering)The Mechanical Engineer's Handbook was developed and written specifically to fill a need for mechanical engineers and mechanical engineering students throughout the world. With over 1000 pages, 550 illustrations, and 26 tables the Mechanical Engineer's Handbook is very comprehensive, yet affordable, compact, and... | | | | |
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