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Amedeo Avogadro: A Scientific Biography
One. Amedeo Avogadro, His Country and His Times.- Two. Electrical and Electrochemical Studies.- Three. The Molecular Hypothesis: The 1811 and 1814 Essays.- Four. The Molecular Hypothesis: From 1811Expand
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Electrical and Electrochemical Studies
The first decade of the nineteenth century saw the physical sciences permeated by the entirely new field of research stimulated by the discovery of the Voltaic battery. In those same years Avogadro,Expand
The Molecular Hypothesis: The 1811 and 1814 Essays
The decade which preceded the elaboration by Amedeo Avogadro of the manuscript of his 1811 ‘Essai d’une maniere’ was one of the most fertile periods in the history of the physical sciences. It hadExpand
The Major Chemical Essays (1821)
Two major chemical essays were read by Avogadro before the Royal Academy of Sciences of Turin in February and December 1821. The first, ‘Nouvelles considerations sur la theorie des proportionsExpand
The Molecular Hypothesis: After the Karlsruhe Congress
For some historians of science and a great number of historians of chemistry, the appearance and diffusion of Cannizzaro’s ‘Sunto’ at the Karlsruhe Congress in 1860 represented the moment when ‘theExpand
The Molecular Hypothesis: From 1811 to Cannizzaro’s ‘sunto’ in 1858
In the two decades which followed the ‘Essai d’une maniere’, Avogadro published three more essays dealing with the molecular hypothesis: in 1814 the ‘Memoire sur les masses relatives’ appeared in theExpand
rotary positive displacement pump with helical rotors.
Rotary positive displacement pump comprising a pair of rotors or gears engaging (10, 11), that is, a rotor or drive gear and a rotor or driven, respectively, enclosed in a housing with an ejectionExpand
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Amedeo Avogadro, His Country and His Times
Generally recognized as an Italian, though the definition is correct only in a strict geographic sense, Amedeo Avogadro was a citizen of the Kingdom of Sardinia for sixty-eight years and, during theExpand