The London, Edinburgh and Dublin Philosophical Magazine and Journal of ScienceTaylor & Francis, 1878 |
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Side iv
... Resonators . ( Plate I. ) 119 Prof. P. E. Chase on the Nebular Hypothesis . - IX . Radiation and Rotation ... 128 Prof. W. E. Ayrton on the Electrical Properties of Bees ' - wax and Lead Chloride . ( Plate II . ) .. 132 142 Mr. J. Brown ...
... Resonators . ( Plate I. ) 119 Prof. P. E. Chase on the Nebular Hypothesis . - IX . Radiation and Rotation ... 128 Prof. W. E. Ayrton on the Electrical Properties of Bees ' - wax and Lead Chloride . ( Plate II . ) .. 132 142 Mr. J. Brown ...
Side vii
... Resonators . II . Illustrative of Professor Ayrton's Paper on the Electrical Proper- ties of Bee's - wax and Lead Chloride . III . Illustrative of Mr. J. E. H. Gordon's Paper on the Effect of Varia- tion of Pressure on the Length of ...
... Resonators . II . Illustrative of Professor Ayrton's Paper on the Electrical Proper- ties of Bee's - wax and Lead Chloride . III . Illustrative of Mr. J. E. H. Gordon's Paper on the Effect of Varia- tion of Pressure on the Length of ...
Side 119
... Resonators . By D. J. BLAIKLEY * . [ Plate I. ] N bringing before the Physical Society a few notes and experiments on this subject , I would desire to say that ... Resonators . 119 J Blaikley on Brass Wind Instruments as Resonators (Plate I.
... Resonators . By D. J. BLAIKLEY * . [ Plate I. ] N bringing before the Physical Society a few notes and experiments on this subject , I would desire to say that ... Resonators . 119 J Blaikley on Brass Wind Instruments as Resonators (Plate I.
Side 120
... resonator . There are two simple forms of resonators which give the series of notes required in wind instruments : these are the open tube of equal section throughout , and the cone complete to its apex , where it is of course closed ...
... resonator . There are two simple forms of resonators which give the series of notes required in wind instruments : these are the open tube of equal section throughout , and the cone complete to its apex , where it is of course closed ...
Side 121
... , may be illustrated by a conic frustum open at both ends . Holding a vibrating fork over one end ( in this case c 512 ) , gradually sink the tube in water : the water - level when the tube is giving its Instruments as Resonators . 121.
... , may be illustrated by a conic frustum open at both ends . Holding a vibrating fork over one end ( in this case c 512 ) , gradually sink the tube in water : the water - level when the tube is giving its Instruments as Resonators . 121.
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The London, Edinburgh and Dublin Philosophical Magazine and Journal of Science Uten tilgangsbegrensning - 1904 |
The London, Edinburgh and Dublin Philosophical Magazine and Journal of Science Uten tilgangsbegrensning - 1894 |
The London, Edinburgh and Dublin Philosophical Magazine and Journal of Science Uten tilgangsbegrensning - 1901 |
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Populære avsnitt
Side 306 - CLIFFORD — THE ELEMENTS OF DYNAMIC. An Introduction to the Study of Motion and Rest in Solid and Fluid Bodies.
Side 49 - ... in motion ; and the instrument on the board, reacting through the microphone, causes a continuous sound to be produced, which is permanent so long as the independent current of electricity is maintained through the microphone. It follows that the question of providing a relay for the human voice in telephony is thus solved.
Side 45 - The problem which the microphone solves is this — to introduce into an electrical circuit an electrical resistance, which resistance shall vary in exact accord with sonorous vibrations, so as to produce an undulatory current of electricity from a constant source, whose wave-length, height, and form shall be an exact representation of the sonorous waves.
Side 50 - It is easy to speculate on the causes of such behavior, and it may be suggested that the reason of the non-appearance of a dark line may be that the intensity of the light from a great thickness of ignited oxygen overpowers the effect of the photosphere...
Side 61 - Borealis. In other cases, again, it is possible that the composition of a star's atmosphere may be of such a nature as to lead to a state of periodically unstable chemical equilibrium ; that is to say, during a certain period combination may be going on with the accompanying evolution of heat, till at length dissociation again begins to take place. In this manner the phenomena of many variable stars may perhaps be accounted for.
Side 144 - ... and to Sir W. Thomson belongs the credit of having established the fact by experiment, irrespective of his theoretical deductions from the facts of thermo-electricity. He thus describes his decisive experiment : — " A metal bar insulated so as to be movable about an axis perpendicular to the plane of a metal ring made up half of copper and half of zinc, the two halves being soldered together, turns from the zinc towards the copper when positively electrified, and from the copper towards the...
Side 48 - I am inclined to believe, from numerous experiments, that the whole block increases and diminishes in size at all points, in the centre as well as the surface, exactly in accordance with the form of the sonorous wave. Confining our attention, however, to points on A and B, how can this increased molecular size or form produce a change in the electrical waves ? This may happen in two ways : first, by increased pressure on the upper surface, due to its enlargement ; or, second, the molecules themselves,...
Side 132 - J- increased regularly, without discontinuity, in passing from several degrees below the freezing point to several degrees above it. We drew attention to the fact that, in consequence of the absorbed charge in water being immeasurably greater than the surface-charge, we could not hope, by any method of experimenting, to properly compare- the true specific inductive capacity with the index of refraction for light of infinitely long waves ; so that, in fact, the only support that Prof. C.
Side 456 - ... when unpolarized light falls on its surface and it is seen through a Nicol whose principal section is vertical, and when the incident light is polarized perpendicularly to the plane of incidence and it is seen directly. These experiments show that when light falls upon the surface of a film of iodine at an angle of about...
Side 49 - ... sound to be produced, which is permanent so long as the independent current of electricity is maintained through the microphone. It follows that the question of providing a relay for the human voice in telephony is thus solved. " The transmission of sound through the microphone is perfectly duplex ; for if two correspondents use microphones as transmitters, and telephones as receivers, each can hear the other, but his own speech is inaudible ; and if each sing a different note, no chord is heard....