Elements of Physical Manipulation, Part 1Hurd & Houghton, 1873 - 225 pages |
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Common terms and phrases
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
Popular passages
Page 89 - Archimedes stated that a body immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid.
Page 146 - ... that the ratio of the sines of the angles of incidence and refraction is constant for refraction in the same medium, was effected by Snell and Descartes.
Page 6 - The principle upon which it is proposed to solve this problem is, that the proposed observations should be rejected when the probability of the system of errors obtained by retaining them is less than that of the system of errors obtained by their rejection multiplied by the probability of making so many, and no more, abnormal observations.
Page 3 - Now, according to Art. 11, the most probable system of values of x, y, z.... (and, consequently, the most probable system of errors) is that which makes the sum of the squares of the errors a minimum: thus, we are to reduce to a minimum the function [vv~] = v'v' + v"v" + v'"v'" + .... Regarding [rr] as a function of the variables x,y,z...
Page 217 - ... one another so as to form a pile. The other measurements of the polarization of the reflected beam were obtained by quite a different method. A large Babinet's goniometer, or optical circle, was employed, the slit being removed and replaced by a Nicol's prism, which was free to turn around its axis, the angle of rotation being measured by a graduated circle and index. In the eye-piece of the observing telescope, a Nicol's prism was placed, and TABLE XIII. Observed Polarization of 1, 2, 8, and...
Page v - ... work has been prepared, based on the experience gained in the Massachusetts Institute of Technology during the past four years. The preliminary chapter is devoted to general methods of investigation, and the more common applications of the mathematics to the discussion of results. The graphical method does not seem to have attracted the attention it deserves ; it is accordingly compared here with the analytical method. Some new developments of it are moreover inserted. It is of fundamental importance...
Page 100 - ... movable clips placed on the coils. Since the oscillator generates quite a strong second harmonic at least over its higher range, the actual frequency variation is from 75 to 500 megacycles. The over-all length of the oscillator including tubes is about nine inches. It is mounted on a movable base in such a way that it may be raised or lowered at will. In order to demonstrate that the field of the 2-3 16A oscillator is indeed of the inverted symmetrical type, a curve was plotted like that in Fig....
Page i - ... science or the better grade of artisan. " — Iron. Pickering.— ELEMENTS OF PHYSICAL MANIPULATION. By EC PICKERING, Thayer Professor of Physics in the Massachusetts Institute of Technology. Part I., medium 8vo. 1o*. 6d. ' ' We shall look with interest for the appearance of the second volume, and when finished 'Physical Manipulation* will no doubt be considered the best and most complete text-book on the subject of which it treats.
Page vi - ... and explaining the method in which the book was to be used, he continues : Perhaps the greatest advantage to be derived from a course of physical manipulation is the means it affords of teaching a student to think for himself. This should be encouraged by allowing him to carry out any idea which may occur to him and as far as possible devise and construct with his own hands the apparatus needed. The method of conducting a Physical Laboratory for which this book is especially designed and which...
Page 110 - It is, however, customary to assume that the air is saturated with moisture, and at the same temperature as the water with which it is in contact.