Philosophical MagazineTaylor & Francis., 1917 - Physics |
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Common terms and phrases
absorption æther air-coal gas aluminium angle approximately assumed atomic weight axis calculated coefficient colour component cone connexion constant corresponding curve deflexion density determined distance effect electric energy equal equation error experimental experiments expression field force formula free electrons frequency gamma rays gas flame gases given H₂ heat hydrogen impurity inertia ionization ionization potential J. J. Thomson lines luminosity magnetic mass maximum mean measured Mercury method millimetre mixture mobility molecules motion negative ions nitrogen number of free observed obtained OLIVER JOSEPH LODGE orbit oxygen paper perihelion petroleum ether Phil Philosophical Magazine plane plate Poisson's equation positive potential present pressure proportional quantity radiation radium radius rays shown spectrum speed surface temperature theory tube V₁ vapour velocity vibration volts wave-length wire zero ди
Popular passages
Page 430 - I find is due to the fact that the collodion film "frills," the mesh, however, being so small that it can only be detected with the highest powers of the microscope. Commercial ether and collodion should be used. If chemically pure ether obtained by distillation is used, the film does not frill...
Page 485 - The author wishes to acknowledge his indebtedness to the Government Grant Committee of the Royal Society for the means of purchasing some of the apparatus used in these experiments, and also to Prof.
Page 93 - An infinite mass of homogeneous incompressible fluid acted on by no forces is at rest, and a spherical portion of the fluid is suddenly annihilated...
Page 57 - ... have at any given instant a number of free electrons and a certain number of ions, but if we were to follow one electron throughout its motion we should find it associated on the average with a mass intermediate between that of an electron and that of a molecule Ultimately at very low pressures the carriers would be all free electrons.
Page 59 - ... electron will decrease as it recedes ; in accordance with the above view we may imagine a sphere drawn round the parent molecule of such a radius that the electron will be effective in forming a negative ion only for impacts within this sphere. It is probable that the circumstances of an encounter as well as the relative velocity will determine the effectiveness of a collision, so that only a fraction of...