Illustrations of the C.G.S. System of Units: With Tables of Physical Constants |
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Page iv
... Edition published elsewhere . Second Edition printed for Macmillan & Co. , 1879 ( Ext . Fcap . 8vo ) . Third Edition , 1886 ( Globe 8vo ) . Fourth Edition , 1891 . PREFACE . THIS work , in its original form , Phys 440.5.5.
... Edition published elsewhere . Second Edition printed for Macmillan & Co. , 1879 ( Ext . Fcap . 8vo ) . Third Edition , 1886 ( Globe 8vo ) . Fourth Edition , 1891 . PREFACE . THIS work , in its original form , Phys 440.5.5.
Page v
... edition " issued in 1886 . The C.G.S. units having now become the accepted standards of reference throughout the scientific world , there is no longer any reason for suppressing the name . In the present edition they are accordingly ...
... edition " issued in 1886 . The C.G.S. units having now become the accepted standards of reference throughout the scientific world , there is no longer any reason for suppressing the name . In the present edition they are accordingly ...
Page viii
... Great pains have been taken to make the work correct as a book of reference . Readers who may discover any errors will greatly oblige me by pointing them out . EXTRACT FROM PREFACE TO FIRST EDITION OF " UNITS AND viii PREFACE .
... Great pains have been taken to make the work correct as a book of reference . Readers who may discover any errors will greatly oblige me by pointing them out . EXTRACT FROM PREFACE TO FIRST EDITION OF " UNITS AND viii PREFACE .
Page ix
... edition of this work has been made by Dr. C. J. MATTHES , Secretary of the Royal Academy of Sciences of Amsterdam , and was published in that city in 1877 . EXTRACT FROM PREFACE TO THE EDITION OF 1886 . In collecting materials for this ...
... edition of this work has been made by Dr. C. J. MATTHES , Secretary of the Royal Academy of Sciences of Amsterdam , and was published in that city in 1877 . EXTRACT FROM PREFACE TO THE EDITION OF 1886 . In collecting materials for this ...
Page x
... edition , by Prof. J. J. Boguski , was published at Warsaw in 1885 ; and permission has been asked and granted for the publication of an Italian edition . ADDENDA AND CORRIGENDA . PAGE 63. In reducing Cailletet's experiments X PREFACE .
... edition , by Prof. J. J. Boguski , was published at Warsaw in 1885 ; and permission has been asked and granted for the publication of an Italian edition . ADDENDA AND CORRIGENDA . PAGE 63. In reducing Cailletet's experiments X PREFACE .
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Common terms and phrases
acceleration atmosphere body C.G.S. system C.G.S. units capacity Carbonic Acid cell centimetre coefficient column compression Copper Crown 8vo cubic centim denoting density difference of potential dimensions distance dynes dynes per square earth's elasticity electromagnetic unit electromotive force electrostatic unit employed equal equation equivalent ergs farad Fcap following table following values formula fundamental units gases given glass grammes gravity Hence Hydrogen inch index of refraction inductive intensity iron liquid longitudinal magnetic megadyne mercury metre millimetres multiplied Nitrous Oxide numerical value Oxide Peltier effect PHYSICS Platinum pressure Professor quantity of electricity quotient radius ratio Regnault shear Silver specific heat specific resistance square centim standard stress substance sulphate sulphuric acid surface Temp temperature thermoelectric thermoelectric heights thermometer Thomson effect Trans unit of heat unit of length vacuo value of g velocity Viscosity volume wire Young's modulus Zinc
Popular passages
Page 4 - A ratio of t ; and the numerical value — will vary inversely a as l, and directly in the duplicate ratio of t. In other words, the unit of acceleration varies directly as the unit of length, and inversely as the square of the unit of time; and the numerical value of a given acceleration varies inversely as the unit of length, and directly as the square of the unit of time. It will be observed that these have been deduced as direct consequences from the fact that [the numerical value of] an acceleration...
Page 213 - CGS" prefixed, these being the initial letters of the names of the three fundamental units. Special names, if short and suitable, would, in the opinion of a majority of us, be better than the provisional designations "CGS unit of . . . ." Several lists of names have already been suggested ; and attentive consideration will be given to any further suggestions which we may receive from persons interested in electrical nomenclature. The
Page 216 - September 22nd, 1881:— 1. For electrical measurements, the fundamental units, the centimetre (for length), the gramme (for mass), and the second (for time), are adopted. 2. The Ohm and the Volt (for practical measures of resistance and of electromotive force or potential) are to keep their existing definitions, 102 for the Ohm, and 108 for the Volt.
Page 50 - ... large deformations without receiving a permanent set, is said to have wide limits of elasticity. A body which, like steel, opposes great resistance to deformation, is said to have large coefficients of elasticity. Any change in the shape or size of a body produced by the application of force to the body is called a strain; and an action of force tending to produce a strain is called a stress. When a wire of cross-section A is stretched with a force F, the...
Page 211 - FRS, and Professor EVERETT (Reporter). WE consider that the most urgent portion of the task intrusted to us is that which concerns the selection and nomenclature of units of force and energy ; and under this head we are prepared to offer a definite recommendation. A more extensive and difficult part of our duty is the selection and nomenclature of electrical and magnetic units. Under this head we are prepared with a definite recommendation as regards selection, but with only an interim recommendation...