 | Neil Arnott - 1829 - 542 sivua
...the vibrations, and with a weight or spring having force enough to counteract the retarding effects of friction and the resistance of the air. The wheels...swings or beats of the pendulum have taken place, because at every beat, a tooth of the last wheel is allowed to pass. Now if this wheel has sixty teeth,... | |
 | 1831 - 472 sivua
...the vibrations ; and with a weight or spring, having force enough to counteract the retarding effects of friction and the resistance of the air. The wheels...swings or beats of the pendulum have taken place, because at every beat, a tooth of the lust wheel is allowed to pass. Now, if this wheel has sixty teeth,... | |
 | John Timbs - 1831 - 302 sivua
...whether it be moving much or little ; that is to say, whether the arc described by it be large or small. resistance of the air. The wheels show how many swings or beats of the pendulum have taken place, because at every beat, a tooth of the last wheel is allowed to pass. Now, if this wheel has sixty teeth,... | |
 | Charles Knight - 1831 - 324 sivua
...the vibrations ; and with a weight orspring, having force enough to counteract the retarding effects of friction and the resistance of the air. The wheels show how ninny swings or beats of the pendulum have taken place, because at every beat, a tooth of the last... | |
 | John Timbs - 1832 - 314 sivua
...the vibrations ; and with a weight or spring, having force enough to counteract the retarding effects of friction and the resistance of the air. The wheels...swings or beats of the pendulum have taken place, because at every beat, a tooth of the last wheel is allowed to pass. Now, if this wheel has sixty teeth,... | |
 | John Timbs - 1832 - 300 sivua
...the vibrations ; and with a weight or spring, having force enough to counteract the retarding effects of friction and the resistance of the air. The wheels...swings or beats of the pendulum have taken place, because at every beat, a tooth of the last wheel is allowed to pass. Now, if this wheel has sixty teeth,... | |
 | John Timbs - 1832 - 362 sivua
...the vibrations ; and with a weight or spring, having force enough to counteract the retarding effects of friction and the resistance of the air. The wheels show how mnny swings or beats of the pendulum have taken place, because at every beat, a tooth of the last wheel... | |
 | Richard Green Parker - 1838 - 266 sivua
...record the number of vibrations. A weight is attached, in order to counteract the retarding effects of friction, and the resistance of the air. The wheels...fixed on the axis of the wheel projecting through the dial plate, will be the second hand of the clock. Other wheels are so connected with the first, and... | |
 | John Lee Comstock - 1838 - 266 sivua
...number of vibrations, and with a weight having sufficient force to counteract the retarding effects of friction, and the resistance of the air. The wheels...tooth of a wheel is allowed to pass. Now if this wheel has sixty teeth, it will just turn round once in sixty beats of the pendulum, or sixty seconds, and... | |
 | Richard Green Parker - 1839 - 298 sivua
...record the number of vibrations. A weight is attached, in order to counteract the retarding effects of friction, and the resistance of the air. The wheels...or in sixty seconds ; and a hand, fixed on the axis ojthe wheel projecting through the dial plate, will be the second hand of the clock. Other wheels are... | |
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... wheel is allowed to pass. Now, if this wheel has sixty teeth, as is common, it will just turn round once for sixty beats of the pendulum, or seconds; and a hand fixed on its axis, projecting through the dial-plate, will be the second hand of the clock. 
