Science, Volume 1John Michels (Journalist) American Association for the Advancement of Science, 1895 Since Jan. 1901 the official proceedings and most of the papers of the American Association for the Advancement of Science have been included in Science. |
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Página 10
... known that the length of this column was nearly three millimetres too small to correctly represent the ohm of the British Association Committee . This result had been established by investiga- tions by Rowland in this country , and by ...
... known that the length of this column was nearly three millimetres too small to correctly represent the ohm of the British Association Committee . This result had been established by investiga- tions by Rowland in this country , and by ...
Página 12
... known as the international ohm , which is substantially equal to one thousand million units of resistance of the centimetre - gramme - second system of electro - magnetic units , and represented by the resistance offered to an unvarying ...
... known as the international ohm , which is substantially equal to one thousand million units of resistance of the centimetre - gramme - second system of electro - magnetic units , and represented by the resistance offered to an unvarying ...
Página 13
... known that Congress has never exercised this power except in the Act of 1866 , which involves the semi - establishment of such a system by making the use of the Metric System permissive throughout the United States . Aside from this ...
... known that Congress has never exercised this power except in the Act of 1866 , which involves the semi - establishment of such a system by making the use of the Metric System permissive throughout the United States . Aside from this ...
Página 30
... known , and that plan was taught by Pythagoras more than five hundred years before Christ . It must have been known to the Egyptians and Chaldeans still earlier , if Pythagoras really acquired his knowledge of astronomy from them as is ...
... known , and that plan was taught by Pythagoras more than five hundred years before Christ . It must have been known to the Egyptians and Chaldeans still earlier , if Pythagoras really acquired his knowledge of astronomy from them as is ...
Página 31
... known , it only remains to de- termine the scale of the system , for which purpose the distance between any two planets suffices . We know little about the early history of the subject , but it is clear that the primitive astronomers ...
... known , it only remains to de- termine the scale of the system , for which purpose the distance between any two planets suffices . We know little about the early history of the subject , but it is clear that the primitive astronomers ...
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Abbildungen Academy American anatomy animals annual Archæology argon astronomical Auflage Biology Botany BRINTON catalogue cells centrosomes character chemical Chemistry Cloth Columbia College course Cretaceous Darwin discussion earth edition electric energy Engineering experiments fact fauna Figuren flora fossil FREDERICK BEDELL genera geographical Geological Geology germ given glacial growth HART MERRIAM HENRY HENRY FAIRFIELD OSBORN ical illustrated important interest investigation IRA REMSEN JOSEPH LE CONTE Journal known Laboratory larvæ lectures London Lord Kelvin Macmillan magnetic mathematical means measure mechanical meeting ment method Notes O. C. MARSH observations organism original ovipositor paper period Physics Physiology plants present President Prof Professor publication published recent region Scientific Literature Seiten species student surface tain temperature Text theory tion United University valley variation volume W. M. DAVIS Washington William York Zoology
Passagens mais conhecidas
Página 3 - If to do were as easy as to know what were good to do, chapels had been churches and poor men's cottages princes' palaces. It is a good divine that follows his own instructions : I can easier teach twenty what were good to be done, than be one of the twenty to follow mine own teaching.
Página 86 - I hold every man a debtor to his profession; from the which, as men of course do seek to receive countenance and profit, so ought they of duty to endeavor themselves, by way of amends, to be a help and ornament thereunto.
Página 45 - ... we feel sorry because we cry, angry because we strike, afraid because we tremble, and not that we cry, strike, or tremble because we are sorry, angry, or fearful, as the case may be.
Página 56 - Works by WILLIAM A. TILDEN, D.Sc. London, FRS, Professor of Chemistry in the Royal College of Science, South Kensington. A SHORT HISTORY OF THE PROGRESS OF SCIENTIFIC CHEMISTRY IN OUR OWN TIMES. Crown 8vo., y.
Página 12 - ... As a unit of electromotive force, the international volt, which is the electromotive force that, steadily applied to a conductor whose resistance is one international ohm, will produce a current of one international ampere, and which is represented sufficiently well for practical use by \\\% of the electromotive force between the poles or electrodes of the voltaic cell known as Clark's cell, at a temperature of 15° C., and prepared in the manner described in the accompanying specification...
Página 13 - Ampere, which is one-tenth of the unit of current of the CGS system of electromagnetic units and which is represented sufficiently well for practical use by the unvarying current which, when passed through a solution of nitrate of silver in water, in accordance with a certain specification, deposits silver at the rate of 0.001118 of a gramme per second.
Página 294 - Ohm, which is based upon the ohm equal to io9 units of resistance of the CGS system of electromagnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grammes in mass of a constant cross-sectional area, and of the length of 106.3 centimetres.
Página 522 - This is an excellent book, and should be in the hands of all who are interested in the construction and design of medium-sized stationary engines. . . . A careful study of Its contents and the arrangement of the sections leads to the conclusion that there is probably no other book like It in this country. The volume aims at showing the results of practical 'experience, and it certainly...
Página 391 - Lastly, physical investigation, more than anything besides, helps to teach us the actual value and right use of the Imagination — of that wondrous faculty, which, left to ramble uncontrolled, leads us astray into a wilderness of perplexities and errors, a land of mists and shadows; but which, properly controlled by experience and reflection, becomes the noblest attribute of man; the source of poetic genius, the instrument of discovery in Science, without the aid of which Newton would never have...
Página 12 - As a unit of resistance, the international ohm, which is based upon the ohm equal to 10" units of resistance of the CGS system of electromagnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grams in mass, of a constant cross-sectional area and of the length of 106.3 centimetres.