 ... placed with its north end between the two arms of a horse-shoe magnet. When the latter was excited by the current, the end of the bar thus placed was attracted by one arm of the horse-shoe, and repelled by the other, and was thus caused to move in...  Smithsonian Miscellaneous Collections - Стр. 25авторы: Smithsonian Institution - 1862Полный просмотр - Подробнее о книге
 | James Curtis Booth, Campbell Morfit - 1862 - Страниц: 740
...experimenting in regard to the second, I arranged around one of the upper rooms in the Albany Academy a wire of more than a mile in length, through which...simply a steel bar, permanently magnetized, of about len inches in length, supported on a pivot, and placed with its north end between the two arms of a... | |
 | Smithsonian Institution - 1880 - Страниц: 560
...wire of more than a mile in length, through which I was enabled to make signals by sounding a -bell. The mechanical arrangement for effecting this object...placed with its north end between the two arms of a liorse-shoe magnet. When the latter was excited by the current, the end of the bar thus placed was... | |
 | 1880 - Страниц: 552
...wire of more than a mile in length, through which I was enabled to make signals by sounding a bell. The mechanical arrangement for effecting this object was simply a steel bar, permanently ri>agnetized, of about ten inches in lengt^, supported on a pivot, and placed with its north end between... | |
 | Smithsonian Institution - 1880 - Страниц: 548
...wire of more than a mile in length, through which I was enabled to make signals by sounding a bell. The mechanical arrangement for effecting this object was simply a steel bar, j)ermanently magnetized, of about ten inches in length, supported on a pivot, and placed with its north... | |
 | Smithsonian Institution - 1881 - Страниц: 850
...wire of more than a mile in length, through which I was enabled to make signals by sounding a bell. The mechanical arrangement for effecting this object...a steel bar, permanently magnetized, of about ten indies in length, supported on a pivot, and placed with its north end between the two arms of a horse-shoe... | |
 | Joseph Henry - 1886 - Страниц: 582
...more than a mile in length, through which I was enabled to make signals by sounding a bell. (Fig. 7.) The mechanical arrangement for effecting this object...about ten inches =-. in length, supported on a pivot, Fl0' 7. and placed with its north end between the two arms of a horse-shoe magnet. When the latter... | |
 | 1891 - Страниц: 850
...sounder was a bell. For striking the bell he employed a pivoted steel bar, permanently magnetized, and "placed with its north end between the two arms 'of a horseshoe magnet." "When the magnet was excited by the current," continues Henry, in his own account of the experiment, " the end... | |
 | George Iles - 1900 - Страниц: 486
...The mechanical arrangement for effecting this object was simply a steel bar, permanently magnetised, of about ten inches in length, supported on a pivot,...north end between the two arms of a horseshoe magnet. \Vhen the latter was excited by the current, the end of the bar, thus placed, was attracted by plG... | |
 | George Iles - 1900 - Страниц: 486
...wire of more than a mile in length, through which I was enabled to make signals by sounding a bell. The mechanical arrangement for effecting this object was simply a steel bar, permanently magnetised, of about ten inches in length, supported on a pivot, and placed with its north end between... | |
 | George Iles - 1902 - Страниц: 212
...more than a mile in length, through which I was enabled to make signals by sounding a bell, (Fig. 7.) The mechanical arrangement for effecting this object...about ten inches in length, supported on a pivot, 34 and placed with its north end between the two arms of a horse-shoe magnet. When the latter was excited... | |
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