Boomerang
Boomerang angled or slightly bent throwing object, which comes back to the thrower when properly thrown. The boomerang was the throwing weapon of the australian aborigines. If it missed a target, it came back to them. Today the boomerang is a piece of sport equipment, with which competitions in distance throwing, exact catching, and number of successive catches are held. The flight characteristics of the boomerang (made of wood, plastic or glass fibre, sometimes with stabilizing led weights attached to the arms) are related to its plane convex or asymmetrical biconvex cross-section and the slight twist of the two arms in relation to each other. Velocities of up to 160 km/h and distances of up to 100 m can be reached with a boomerang. (H.Haag &g. Haag, dictionary, 2003, 93 p.)
Source: http://lspa.eu/files/study/lection_materials/U.Svinks/Sport_lexis_terms_explanatory_dictionary_in_english.pdf
List of Literature and The List of Abbreviations sources used in the source document
1. Chambers Sports Factfinder. Chambers Harrap Publishers Ltd 2005. [ISBN 0550 101616] (Chambers. Sports Factf.,2005)
2. Dictionary of Leisure, Travel and Tourism. Third edition. A&C Black Publishers Ltd, 2008. [ISBN 9780713685459] (Dict. of Leis., Trav. and Tour., 2008)
3. Dictionary. Sport, Physical Education, Sport Science. Editors Herbert Haag&Gerald Haag. Kiel, Institut für Sport und Sportwissenschaften, 2003. [ISBN 3-7780-3419-7] ((H.Haag &G. Haag, Dictionary, 2003)
4. Dictionary of Sport and Exercise Science A&Black Publishers Ltd 2006. [ISBN -10: 0713677856; ISBN-13: 9780713677850] (Dict. of Sp.and Ex.Sc,2006)
5. Dictionary of the Sport and Exercise Sciences. Mark H.Anshel, Editor. Human Kinetics Books Champaign, Illinois, 1991 [ISBN: 0-87322-379-9] (Dict. of sp. and Ex. Sc. 1991)
Web site to visit: http://lspa.eu
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