The International System of Units: Physical Constants and Conversion FactorsScientific and Technical Information Division, National Aeronautics and Space Administration, 1969 - 19 стор. |
Загальні терміни та фрази
04 British thermal ampere avoirdupois British thermal unit Btu thermochemical)/foot2 calorie kilogram candela conducteur Conference on Weights coulomb courant definition égale Electric electromotive force Eleventh General Conference engineer or ramden farad femtometer foot U.S. survey H₂O horsepower inch of mercury international nautical)_ international of 1948 International Steam Table International System joule 00 joule calorie joule._ kelvin kg-¹ kilocalorie kilogram 01 kilogram kilogram kilogram kilogram/meter kilopond longueur lumen Magnetic flux mass troy meter per second meter/second meter³ 03 meter³ kilogram meter³ meter³ mètre metric system mile international miscellaneous units National Bureau nautical mile newton second/meter2_ newton newton___ newton/meter² ounce mass ounce U.S. pound force pound mass poundal quart U.S. radian second ephemeris second mean solar sidereal)_ sq meter steradian surveyor or gunter System of Units temperature thermal unit 60 troy or apothecary U.K. nautical U.S. dry U.S. statute watt watt_ horsepower watt/meter2 weber Wb Weights and Measures
Популярні уривки
Сторінка 1 - That from and after the passage of this act, it shall be lawful throughout the United States of America to employ the weights and measures of the Metric System ; and no contract, or dealing, or pleading in any court, shall be deemed invalid or liable to objection, because the weights or measures expressed or referred to therein are weights or measures of the Metric System.
Сторінка 4 - The ampere is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 metre apart in vacuum, would produce between these conductors a force equal to 2 x 10~7 newton per metre of length.
Сторінка 4 - The kilogram is the unit of mass; it is equal to the mass of the international prototype of the kilogram.
Сторінка 6 - The henry is the inductance of a closed circuit in which an electromotive force of 1 volt is produced when the electric current in the circuit varies uniformly at the rate of 1 ampere per second.
Сторінка 4 - The metre is the length equal to 1 650 763.73 wavelengths in vacuum of the radiation corresponding to the transition between the levels 2p,0 and 5d5 of the krypton-86 atom.
Сторінка 5 - The candela is the luminous intensity, in the perpendicular direction, of a surface of 1/600 000 square metre of a black body at the temperature of freezing platinum under a pressure of 101 325 newtons per square metre.
Сторінка 4 - The kelvin, unit of thermodynamic temperature, is the fraction 1/273.16 of the thermodynamic temperature of the triple point of water.
Сторінка 4 - The second is the duration of 9, 192, 631, 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium- 133 atom (13th CGPM, 1967).
Сторінка 5 - The ohm is the electric resistance between two points of a conductor when a constant difference of potential of one volt, applied between these two points, produces in this conductor a current of one ampere, this conductor not being the source of any electromotive force.
Сторінка 4 - La seconde est la durée de 9 192 631 770 périodes de la radiation correspondant à la transition entre les deux niveaux hyperfins de l'état fondamental de l'atome de césium 133 (13