Open AccessIX. The constitution of the electric spark
Publication year - 1908
Publication title -
philosophical transactions of the royal society of london. series a, containing papers of a mathematical or physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9258
pISSN - 0264-3952
DOI - 10.1098/rsta.1908.0023
Subject(s) - spark (programming language) , optics , electric spark , prism , constitution , spark discharge , lens (geology) , plane (geometry) , physics , materials science , electrode , computer science , law , geometry , mathematics , quantum mechanics , political science , programming language
1.Previous Experiments .—In the year 1899 Professor Schuster and Dr. Hemsalech published the results of their experiments on the Constitution of the Electric Spark. On a slit parallel to the spark they formed an image of a spark produced between metal electrodes by a Wimshurst machine and photographed the light passing through the slit, both directly and after analysis by a prism, on a moving film in the focal plane of the camera lens, the direction of motion of the film being at right angles to the direction of the slit. A summary of their results is given below:— (1.) In the photographs on the moving film the lines in the spectrum which are due to the metallic vapour were inclined, whilst the air lines were straight.