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Updated: June 11, 2025
In order to obtain this desirable knowledge, the author considers that the three following points should form the aim of experimentalists: First, the determination of the efficiency, K, of the principal kinds of magneto-electric, or dynamo-electric machines working as generators; second, the determination of the efficiency, K1, of the same machines working as motors; third, the determination of the law according to which the magnetism of the cores of these machines varies with the intensity of the current.
Hybrids are seldom raised by experimentalists in great numbers; and as the parent-species, or other allied hybrids, generally grow in the same garden, the visits of insects must be carefully prevented during the flowering season: hence hybrids will generally be fertilised during each generation by their own individual pollen; and I am convinced that this would be injurious to their fertility, already lessened by their hybrid origin.
The sterility is of all degrees, and is often so slight that the two most careful experimentalists who have ever lived, have come to diametrically opposite conclusions in ranking forms by this test. The sterility is innately variable in individuals of the same species, and is eminently susceptible of favourable and unfavourable conditions.
In Sweden and Germany, this sect of fanatics increased rapidly, and were called spiritualists, to distinguish them from the followers of M. de Puysegur, who were called experimentalists.
"First crosses between forms sufficiently distinct to be ranked as species, and their hybrids, are very generally, but not universally, sterile. The sterility is of all degrees, and is often so slight that the two most careful experimentalists who have ever lived have come to diametrically opposite conclusions in ranking forms by this test.
He explained it to her, well knowing that he spoke to unsympathetic ears, for whatever Doris might draw for her publishers, she was a passionate and humble follower of those modern experimentalists who have made the Slade School famous.
There have indeed been most illustrious exceptions; some men protected by their greatness of mind, some by their religious profession, some by the fear of public opinion; but I suppose the run of experimentalists, external to the Catholic Church, have more or less inherited the positive or negative unbelief of Laplace, Buffon, Franklin, Priestley, Cuvier, and Humboldt.
But from the nature of its purpose, the R.F.C. has borne the major part of our aerial burden during the war. In doing so, it has grown from a tiny band of enthusiasts and experimentalists to a great service which can challenge comparison with any other branch of the Army. The history of this attainment is intensely interesting.
But after that a second stage must be reached at which on the foundation of this neutral research special theoretical investigations are undertaken which originate from practical conditions. As long as industrial managers have no contact with the experiments of the laboratory and the experimentalists are shy of any contact with the industrial reality, humanity will pass through social suffering.
Smiles says that exactly at the point when ordinary experimentalists would have abandoned the task, Watt became thoroughly aroused. "Every obstacle," says Professor Robison, "was to him the beginning of a new and serious study, and I knew he would not quit it until he had either discovered its worthlessness or had made something of it." The difficulty here was serious. No one had touched it.
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