PubliSonification2010 - Jerome Joy website

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!!!!ca 1830 __ Metal detector * R.W. Fox (?) * ''Comment :'' “^[...^] Mr. Fox’s beautiful discovery of electric currents in veins, being confined to the veins alone, for neither in his experiments (yet published) nor my own, have we ever detected electric currents in the rocks or in the earthy contents of the veins, the experiments shewing nothing but the existence of electricity or the present contents of veins, in their present places. ^[...^]” ''(In W.J. Henwood, “A Lecture on the phenomena of metalliferous veins, delivered at the Penzance Institution, on Tuesday the 10th of November 1836”, In ‘The Edinburgh New Philosophical Journal’, Vol. XXII, N° XLIII, January 1837, pp. 168-169)'' * ''Attached references :'' Joseph Henry (1797-1878) & Michael Faraday (1791-1867), ''theory of electromagnetism'' (1831) ; Heinrich Wilhem Dove (1803-1879), ''earliest form of induction balance'' (1841) ; Alexander Graham Bell (1847-1922), ''experiments in induction balance with the telephone'' (1877) ; Prof. David E. Hughes (1831-1900) & William Groves (?), ''Induction Balance (I.B.) as a metal locator'' (1879) ; George Hopkins (?), ''Hopkins electric ore finder'' (1881) ; Dr. John Girner (?), ''experimentation with locating metallic masses in the human body'' (1887) ; Captain McEvoy (?), ''electric submarine detector'' (1883 & ca 1905) ; London Electric Ore Finding Company Ltd, ''Bristish patent of a metal detector'' (1902) ; Electric Metal Locating Company of Chicago (and Fred H. Brown (?), ''metal detection'' (?) ; Daniel Chilson (?), ''electromagnetic radio-detector'' (1924) ; George Williams (?), ''Radio-Locator'' (ca 1925) ; Gerhard Fisher (?), ''Metalloscope'' (1929) ; Theodore Theodorsen (1897-1978), ''instrument for detecting metallic bodies buried in the earth : N.A.C.A Bomb Detector'' (1930) ; George Maher (?), ''Alpha'' (?) ; Engineering Research Corporation, ''Terrasearch'' (?) ; Goldak Inc., ''Radioscope'' (ca. 1939) ; J. Evan-Hart & D. Stuckey (?), ''Detectorist'' (2007).{/small} {br}{br}
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