 | Andrew Ure - 1821 - 512 páginas
...charcoal, about an inch long, and one-sixth of an inch in diameter, were brought within l^JOth or l-10th of an inch of each other, a bright spark was produced,...half the volume of the charcoal became ignited to whiuncss; and by drawing back the points a hule from each other, a constant discharge took place, through... | |
 | John Lee Comstock, Sir Richard Phillips - 1822 - 260 páginas
...in diameter, were brought within the circui' and near each other, a bright spark was, produced, and than half the volume of the charcoal became ignited to whiteness, and by withdrawing the points from each other, a constant discharge took place through the heated air, in... | |
 | John Lee Comstock - 1825 - 252 páginas
...about an inch long, and one sixth of an inch in diameter, were brought within the circuit and near each other, a bright spark was produced, and more...of the charcoal became ignited to whiteness, and by withdrawing the points from each other, a constant discharge took place through the heated air, in... | |
 | Sir Richard Phillips - 1826 - 322 páginas
...diameter, were brought near each other (within the thirtieth or fortieth part of an inch,) a bright epark was produced, and more than half the volume of the charcoal became ignited to whiteness ; and, by withdraw ing the points from each other, a constant discharge took place through the heated air, in... | |
 | Andrew Ure - 1827 - 904 páginas
...charcoal, about an inch long¿ and one.sixth of an inch in dia. meter, were brought within 1-30th or 1.40th of an inch of each other, a bright spark was produced,...drawing back the points a little from each other, a constantdischarge took place, through the heated air, in a space equal at least to four inches, producing... | |
 | Andrew Ure - 1828 - 872 páginas
...inch in diameter, were brought within l-30lh or l-40th of an inch of each other, a bright spark wai produced, and more than half the volume of the charcoal...constant discharge took place, through the heated air, in a space equal at least to four inches, producing a most brilliant ascending arch of light, expanded... | |
 | John Ayrton Paris - 1831 - 582 páginas
...inch in diameter, were brought near each other, (within the thirtieth or fortieth parts of an inch,) a bright spark was- produced, and more than half the...of the charcoal became ignited to whiteness, and by withdrawing the points from each other a constant discharge took place through the heated air, in a... | |
 | John Ayrton Paris - 1831 - 598 páginas
...inch in diameter, were brought near each other, (within the thirtieth or fortieth parts of an inch,) a bright spark was produced, and more than half the...of the charcoal became ignited to whiteness, and by withdrawing the points from each other a constant discharge took place through the heated air, in a... | |
 | 1832 - 640 páginas
...inch, and the diameter one-sixth of an inch, became ignited to whiteness. By withdrawing the points from each other, a constant discharge took place through the heated air, in a space at least equal to four inches, forming an arch of light in the form of a double cone, of... | |
 | Peter Mark Roget - 1832 - 324 páginas
...inch, and the diameter one-sixth of an inch, became ignited to whiteness. By withdrawing the points from each other, a constant discharge took place through the heated air, in a space at least equal to four inches, forming an arch of light in the form of a double cone, of... | |
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When pieces of charcoal about an inch long and onesixth of an inch in diameter, were brought near each other (within the thirtieth or fortieth part of an inch) a bright spark was produced, and more than half the volume of the charcoal became ignited to... 
