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Từ điển WordNet v3.1 - WordNet Dictionary
Heaviside
English physicist and electrical engineer who helped develop telegraphic and telephonic communications;
in 1902 (independent of A. E. Kennelly) he suggested the existence of an atmospheric layer that reflects radio waves back to earth (1850-1925)
• Syn:
Oliver Heaviside
• Instance Hypernyms:
physicist, electrical engineer
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