 ... of the same nature." This the lecturer found to be generally the case when the hot rocker rested upon a block, or on the edge of a thick plate of the same metal ; but the case was quite altered when a thin plate of metal was used. Thus, a copper rocker...  Mechanics' Magazine - 174 ページ1854全文表示 - この書籍について
 | 1855 - 424 ページ
...same metal ; but the case was quite altered when a thin plate of metal was used. Thus, a copper rocker laid upon the edge of a penny-piece did not vibrate...rocker on the edge of a dinner knife gave continuous vibration?. A flat brass rocker placed upon the points of two common brass pins, and having its handle... | |
 | Perry Fairfax Nursey - 1854 - 616 ページ
...metal ; but the case was quite altered when a thin plate of metal was used. Thus, a copper rocker, laid upon the edge of a penny-piece, did not vibrate permanently ; but when the coin was beuten out by a hammer, so as to present a thin sharp edge, constant vibrations were obtained. A silver... | |
 | 1855 - 424 ページ
...same metal ; but the case was quite altered when a thin plate of metal was used. Thus, a copper rocker laid upon the edge of a penny-piece did not vibrate...edge of a dinner knife gave continuous vibrations. A flat brass rocker placed upon the points of two common brass pins, and having its handle suitably... | |
 | 1855 - 424 ページ
...the case was quite altered when a thin plate of metal was used. Thus, a copper rocker laid upon trie edge of a penny-piece did not vibrate permanently...edge of a dinner knife gave continuous vibrations. A flat brass rocker placed upon the points of two common brass pins, and having its handle suitably... | |
 | 1855 - 424 ページ
...same metal ; but the case was quite altered when a thin plate of metal was used. Thus, a copper rocker laid upon the edge of a penny-piece did not vibrate permanently ; but when the coiu was beaten out by a hammer, so as to present a thin sharp edge, constant svibrations were obtained.... | |
 | John Tyndall - 1863 - 502 ページ
...same metal ; but the case was quite altered when a thin plate of metal was used. Thus a copper rocker laid upon the edge of a penny-piece did not vibrate...vibrations were obtained. A silver rocker resting resting on the edge of a half-crown refused to vibrate permanently ; but on the edge of a sixpence... | |
 | John Tyndall - 1863 - 538 ページ
...same metal ; but the case was quite altered when a thin plate of metal was used. Thus a copper rocker laid upon the edge of a penny-piece did not vibrate...edge, constant vibrations were obtained. A silver GENERAL LAWS OP PROPESSOR FORBES.' 129 rocker resting on the edge of a half-crown refused to vibrate... | |
 | John Tyndall - 1866 - 492 ページ
...same metal ; but the case was quite altered when a thin plate of metal was used. Thus a copper rocker laid upon the edge of a penny-piece did not vibrate...vibrations were obtained. A silver rocker resting resting on the edge of a half-crown refused to vibrate permanently ; but on the edge of a sixpence... | |
 | John Tyndall - 1869 - 566 ページ
...metal was used. Thus a copper rocker laid upon the «dge of a penny-piece did not vibrate permanentiy ; but when the coin was beaten out by a hammer, so as...vibrations were obtained. A silver rocker resting resting on the edge of a half-crown refused to vibrate permanently ; but on the edge of a sixpence... | |
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