Giovanni Battista Venturi
Giovanni Battista Venturi was an Italian physicist, savant, man of letters, diplomat and historian of science. He was the discoverer of Venturi effect, which was described in 1797 in his Recherches Experimentales sur le Principe de la Communication Laterale du Mouvement dans les Fluides applique a lExplication de Differens Phenomenes Hydrauliques, translated into English in 1837 by Thomas Tredgold as Experimental Inquiries Concerning the Principle of the Lateral Communication of a Motion in Fluids, in Tracts on Hyraulics. Because of this discovery, he is the eponym for the Venturi tube, the Venturi flow meter and the Venturi pump.
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Source: Wikipedia