Elements of Physical Manipulation, Part 1Hurd & Houghton, 1873 |
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Page 16
... the experiment we reduce the vibrations to seconds by swinging our pendulum , and counting the number of oscillations per minute . By graduating the tape properly , we may readily construct 16 PHYSICAL MEASUREMENTS .
... the experiment we reduce the vibrations to seconds by swinging our pendulum , and counting the number of oscillations per minute . By graduating the tape properly , we may readily construct 16 PHYSICAL MEASUREMENTS .
Page 18
... vibrations of a tuning - fork in- stead of a pendulum . A fine brass point is attached to the fork which is kept vibrating by an electro - magnet . If a plate of glass or piece of paper covered with lampblack , is drawn rapidly past the ...
... vibrations of a tuning - fork in- stead of a pendulum . A fine brass point is attached to the fork which is kept vibrating by an electro - magnet . If a plate of glass or piece of paper covered with lampblack , is drawn rapidly past the ...
Page 19
Edward Charles Pickering. of vibrations made . The reed produces a musical note , and any irregularity is at once detected by a change in its pitch . Measurement of Weight . This is done almost exclusively by the ordinary balance , whose ...
Edward Charles Pickering. of vibrations made . The reed produces a musical note , and any irregularity is at once detected by a change in its pitch . Measurement of Weight . This is done almost exclusively by the ordinary balance , whose ...
Page 47
... vibrating through a large arc , so that it will not come to rest for a long time . It is better while using the larger weights to lower the supports a very small amount only , and notice which way the index moves . As it is below the ...
... vibrating through a large arc , so that it will not come to rest for a long time . It is better while using the larger weights to lower the supports a very small amount only , and notice which way the index moves . As it is below the ...
Page 84
... vibrations a second re- places the pendulum of an ordinary clock . It therefore ticks a thousand times a second , and measures small intervals of time with great precision . Very good results may be obtained with a com- mon marine clock ...
... vibrations a second re- places the pendulum of an ordinary clock . It therefore ticks a thousand times a second , and measures small intervals of time with great precision . Very good results may be obtained with a com- mon marine clock ...
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abscissas accuracy accurate amount angle of incidence angular aperture aperture Apparatus attached axis barometer beam brass Canada balsam centre coincide color column compute construct contour lines cross-hairs crystal curve determined diameter distance divided draw equal equation error Experiment eye-piece focus friction gives graduated circle hole horizontal hydrometer inches index of refraction instrument intervals latter length lens lenses liquid marked measure mercury meter method micrometer microscope millimetre minute mirror moving nearly Nicol's prism object observations obtained opthalmoscope paper parallel pass piece placed plane of polarization plate of glass polariscope polarized light position pressure reading reflected refraction remove rendered residual curve retina right angles scale scale-pan screw side slide slit specific gravity spherometer surface telescope temperature tenths tube turn varying velocity vernier vertical vibrations visible volume wave-length weight wire