Villari sentence example
- Gregorovius's Lucrezia Borgia (Stuttgart, 1874) contains a great deal of information on the Borgia family; P. Villari's Machiavelli (English translation, new ed., 1892) deals with the subject at some length.
- Villari in 1868 that the magnetic susceptibility of an iron wire was increased by stretching when the magnetization was below a certain value, but diminished when that value was exceeded; this phenomenon has been termed by Lord Kelvin, who discovered it independently, the " Villari reversal," the value of the magnetization for which stretching by a given load produces no effect being known as the " Villari critical point " for that load.
- The Villari critical point for aegiven sample of iron is reached with a smaller magnetizing force when the stretching load is great than when it is small; the reversal also occurs with smaller loads and with weaker fields when the iron is soft than when it is hard.
- The following table shows the values of I and H corresponding to the Villari critical point in some of Ewing's experiments: The effects of pulling stress may be observed either when the wire is stretched by a constant load while the magnetizing force is varied, or when the magnetizing force is kept constant while the load is varied.
- There were reasons for believing that no Villari reversal would be found in nickel.Advertisement
- Heydweiller, 2 which appeared to indicate a reversal in weak fields (corresponding to I= 5, or thereabouts), have been shown by Honda and Shimizu to be vitiated by the fact that his specimen was not initially in a magnetically neutral state; they found that when the applied field had the same direction as that of the permanent magnetization, Heydweiller's fallacious results were easily obtained; but if the field were applied in the direction opposite to that of the permanent magnetization, or if, as should rightly be the case, there were no permanent magnetization at all, then there was no indication of any Villari reversal.
- Thus it has been proved that in annealed cobalt and in nickel-steel there is no Villari reversal.
- So, too, the Villari reversals in iron and cobalt might have been predicted - as indeed that in cobalt actually was - from a knowledge of the changes of length which those metals exhibit when magnetized.
- Davidsohn's Geschichte der Stadt Florenz (Berlin, 1896); P. Villari's Savonarola (English ed., London, 1896) is invaluable for the period during which the friar's personality dominated Florence, and his Machiavelli (English ed., London, 1892) must be also consulted, especially for the development of political theories.
- The standard modern work on Savonarola is Pasquale Villari's, La Storia di Fra Girolamo Savonarola e de' suoi tempi (Florence, 1887) based on an exhaustive study of the original authorities and containing a number of new documents (English translation by Linda Villari, London, 1889).Advertisement
- His chief work is his Lezioni di letteratura italiana, of which the dominant note is the conviction that Italian literature "is as the very soul of the nation, seeking, in opposition to medieval mysticism, reality, freedom, independence of reason, truth and beauty" (P. Villari).
- To explore scientific error paper in which needed to obtain villari also bolstered.