Smithsonian Miscellaneous Collections, Band 35Smithsonian Institution, 1897 - 280 Seiten |
Inhalt
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Häufige Begriffe und Wortgruppen
air column altitude angle aqueous vapor argument is given Attached Ther avoirdupois BAROMETER IN INCHES BAROMETER TO SEA BAROMETER TO STANDARD barometric pressure CO-ORDINATES FOR PROJECTION coefficient COMMON LOGARITHMS computed conversion factor corresponding cubic centimetre decimal degree parallels Density Derivation of table DEVELOPED PARALLEL dew-point dimensional formula ENGLISH MEASURES equation error Fahrenheit Feet foot grains grammes gravity humidity kilogramme kilometres kilometres per hour Latitude of parallel length liii-lvi logarithms longitude magnetic mean temperature mercury meridian metres per second METRIC MEASURES millimetres observed OII OII pounds Pressure of aqueous PROJECTION OF MAPS psychrometric quadrilateral quantity REDUCTION scale sea level side argument sin² SMITHSONIAN TABLES spheroid square miles STANDARD GRAVITY STANDARD TEMPERATURE SUBTRACTED table explained table gives tabular values thermometer top argument units values are given Values of 2000 vapor pressure velocity wwwww ΙΟ ΙΟΙ
Beliebte Passagen
Seite 219 - B with the sound velocity where y is the ratio of the specific heat at constant pressure to the specific heat at constant volume, and p is the gas pressure.
Seite 21 - As a unit of resistance, the international ohm, which is based upon the ohm equal to 109 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 106.3 centimetres.
Seite 22 - 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...
Seite 5 - The only authorized material standard of customary weight is the Troy pound of the Mint. It is of brass of unknown density, and therefore not suitable for a standard of mass. It was derived from the British standard Troy pound of 1758 by direct comparison.
Seite 21 - 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.
Seite 22 - Henry, which is the induction in a circuit when the electro-motive force induced in this circuit is one international volt while the inducing current varies at the rate of one Ampere per second.
Seite 4 - The straight line or distance between the centres of the transverse lines in the two gold plugs in the bronze bar deposited in the Office of the Exchequer shall be the genuine standard of length at 62° F., and if lost it shall be replaced by means of its copies.