scholarly journals On the production of vibrations and sounds by electrolysis

1863 ◽  
Vol 12 ◽  
pp. 217-236
Keyword(s):  
Liquid Metal ◽  
Electric Current ◽  
Sheet Glass ◽  
Royal Society ◽  
Thin Sheet ◽  
Circular Disk ◽  
Mutual Contact

1. Under some circumstances, which I have already briefly recorded (Proceedings of the Royal Society, No. 44. p. 177), vibrations of singular beauty, accompanied by definite sounds, are produced at the surfaces of mutual contact of a liquid metal and electrolyte by the passage of an electric current. 2. The most convenient mode of obtaining the vibrations and sounds is as follows. Take a circular disk of thin sheet glass about 2 or 3 inches in diameter, and procure a thin hoop of glass about 1 inch wide and of the same diameter as the disk, by cutting off the end of an ordinary glass shade.

The Isotope Effect of a Direct Electric Current through Liquid and Solid Metals

1956 ◽  
Vol 11 (1) ◽  
pp. 71-75
Author(s):  
E. Haeffner ◽  
Th. Sjöborg ◽  
S. Lindhe
Keyword(s):  
Liquid Metal ◽  
Electric Current ◽  
Isotope Effect ◽  
Direct Current ◽  
Capillary Tube ◽  
Isotope Separation ◽  
Direct Electric Current ◽  
Separation Effect ◽  
A Current

The isotope separation effect of a direct electric current in a liquid metal is demonstrated by passing a current through mercury, which is enclosed in a capillary tube. The second part of the paper deals with an attempt of establishing an isotope effect when a direct current is passed through an uranium wire.

scholarly journals XIV. On thermal radiation in absolute measure

1887 ◽  
Vol 178 ◽  
pp. 429-450 ◽  
Keyword(s):  
Thermal Radiation ◽  
Electric Current ◽  
Royal Society ◽  
Surface Emissivity ◽  
Present Communication ◽  
Electrically Conducting ◽  
Absolute Measure ◽  
Carbon Filaments ◽  
Metallic Wires ◽  
Considerable Range

In June, 1884, I had the honour of laying before the Royal Society a communication “On the Permanent Temperature of Conductors through which an Electric Current is passing, and on Surface Emissivity." In carrying out the experiments described in that communication, it became evident that the method then adopted would lend itself readily to the determination in absolute measure of the loss of heat, under various circumstances, from the surface of electrically conducting wires; from metallic wires, for example, and from carbon filaments, such as those used in incandescent electric lamps. Accordingly, at the conclusion of the paper just referred to, the results were given of some preliminary experiments on radiation from metallic wires in high vacuums; and I desire in the present communication to give an account of a more extended investigation in the same direction. Although loss of heat by radiation and convection has been studied by various experimenters, few determinations in absolute measure of the loss under definite circumstances have been made; and, with the exception of those of Schleiermacher, to be mentioned immediately, no determinations, so far as I am aware, have been made through any considerable range of temperatures, or with a difference of temperatures between cooling body and surroundings of considerably more than 100°C.

scholarly journals An experimental determination of the critical electron velocities for the production of radiation and ionisation on collision with argon atoms

1920 ◽  
Vol 97 (681) ◽  
pp. 1-23 ◽  
Keyword(s):  
Experimental Determination ◽  
Electric Current ◽  
Circular Hole ◽  
Royal Society ◽  
Tungsten Filament ◽  
Electron Collisions ◽  
Similar Investigation ◽  
Helium Atoms ◽  
Electric Effect

In the ‘Proceedings of the Royal Society’ for 1919 (A, vol. 95, p. 408) we have given an account of an investigation of the effects of electron collisions with helium atoms. The apparatus and method there described have been somewhat modified, and applied to a similar investigation with argon. With this gas Franck and Hertz came to the conclusion that ionisation occurs when the velocity of the colliding electrons is raised to 12 volts, but the method of experimenting used by them was not able to distinguish between ionisation of the gas and the photo-electric effect of radiation produced by the collisions. The main features of the apparatus used in the present research have been described in the earlier paper; the modifications introduced will be seen by reference to the diagrammatic view in fig. 1. A short tungsten filament, F, which could be heated to incandescence by an electric current, was used as the source of electrons. This was supported horizontally and about 1·5 mm. below the top of the platinum thimble, E, which was plane and circular, and had at its centre a circular hole 1·5 mm. in diameter.

A simple model for liquid metal electric current limiters

2006 ◽  
Vol 18 (5) ◽  
pp. 058103 ◽  
Author(s):  
Thomas Boeck ◽  
André Thess ◽  
Peter Terhoeven
Keyword(s):  
Simple Model ◽  
Liquid Metal ◽  
Electric Current

VIII. On the electrical resistance of thin liquid films, with a revision of Newton’s table of colours

1881 ◽  
Vol 172 ◽  
pp. 447-489 ◽  
Keyword(s):  
Electric Current ◽  
Electrical Resistance ◽  
Royal Society ◽  
Soap Film ◽  
Liquid Films ◽  
Thin Liquid Films ◽  
Preliminary Note ◽  
Method Evidence ◽  
Novel Method ◽  
Made In

In a preliminary note read before the Royal Society in June, 1877, we stated the results of some observations in which an electric current was used in investigating the properties of soap films. These observations were made in the course of an enquiry (then incomplete) as to whether the resistance offered by a soap film to an electric current is inversely proportional to its thickness, and our object in undertaking this was to obtain, by a novel method, evidence as to the value of previous experiments by which various physicists had from time to time attempted “to obtain from the phenomena of capillarity, or from observations on liquid films, an indication of the magnitude of the radius of molecular attraction.” Since that date we have had but few opportunities of carrying out our research in common (as was necessary), and hence the long delay which has taken place; but we are now in a position to state the results of our later experiments, in which the method has been in several respects altered, and the apparatus considerably improved.

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