Showing 1–10 of 10 results

  1. News |

    • THE ordinary method of commercial weighing byputting the weights in one... scale and the commodity to be weighed in the other, and then observing when a sufficient... ...To avoid any such errors, and obtain scientific precision in the... ...is found in a system of double weighing. There are two...
  2. News |

    • ...was originated, the French standards of weights were the series known... of 16 , and double the . The metric equivalent of the (or drachms), and the of 9216 French ...equal to 489.506 grammes, and 7554 English troy grains.... ...In determining the new unit of metric weight, it was... ...of...
  3. News |

    • IN the comparison of standard weights, the difficulty and risk of error in determining the weight... of air displaced by them is... to be avoided by weighing them not in air,... ...are employed for this kind of weighing.
  4. News |

    • ...STANDARD POUND THE standard unit of imperial weight is the avoirdupois... pound of platinum, constructed under the... superintendence of the Commission for Restoration of the Standards. The mode of constructing this new standard of weight, together with full... ...of all the scientific... ...of...
  5. News |

    • ...STANDARD YARD THE immediate superintendence of the construction of the new standard yard was... ...conducted all the preliminary investigations and experiments. After his death... ...Mr. Sheepshanks, by whom and under whose direction by far... ...largest proportion of the actual operations was...and
  6. News |

    • ...that the gravitation or weight of bodies varies with their density... , and the density of the medium in which they... ...well as the actual weight of standard weights differing in density... when they are weighed in air, it is... ...to allow for the weight of air displaced by each.... ...'z§ht of...
  7. News |

  8. News |

    • AS a system of weights and measures, constructed on strictly scientific... ...established upon the fundamental basis of the , its primary unit of length bearing a determinate decimal... ratio to one of the largest natural constants,... ...say, the tenmillionth part of the earth's meridian-... ...of...
  9. News |

    • ...frequently drawn to the subject of our national weights and measures. The administrative and social questions of the improvement of our existing system, and of the proposed introduction into this... country of the decimal metric system—first... ...in France, and now being generally adopted...
  10. News |

    • ...had been at a standstill, and the dicta of Aristotle had been the highest... authority in science. But now the night of mediævalism was approaching its end... , and the dawn of modern progress was at hand... ...clocks by discovering the isochronism of the simple pendulum; had... ...action of...