Chiliogramma
E Vicipaedia
(Redirectum de Chiliogrammata)
Chiliogramma (-tis, n.) est mensura massae et una ex septem principalibus physicae mensuris.
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Definitio[recensere]
Prisca[recensere]
Unum chiliogramma (1 kg) fuit massa quae in uno litro aquae apud temperaturam IV graduum Celsii continetur. Chiliogramma est etiam 1000 grammae (hoc est, gramma est millensima pars chiliogrammae).
Hodierna[recensere]
De anno 1889 1 kg est, per definitionem, massa quae continetur in exemplari prisco apud Officinam Internationale in Pondera et Mensuras Lutetiae sito. Exemplar metallis platino (90%) atque Iridio (10%) factum est. In forma cylindri 39mm alti, cum radio 19.5mm fusum est.
Nexus externi[recensere]
- National Institute of Standards and Technology: NIST Improves Accuracy of ‘Watt Balance’ Method for Defining the Kilogram, www.nist.gov
- National Physical Laboratory: Are any problems caused by having the kilogram defined in terms of a physical artefact? (FAQ - Mass & Density), www.npl.co.uk
- NPL: Avogadro Project, www.npl.co.uk
- NPL: NPL watt balance, www.npl.co.uk
- Metrologia in Francia: Watt balance, www.french-metrology.com
- Australian National Measurement Institute: Redefining the kilogram through the Avogadro constant, www.measurement.gov.au
- International Bureau of Weights and Measures: Pagina domestica, www.bipm.org
- NZZ Folio: What a kilogram really weighs
- NPL: http://www.npl.co.uk/reference/faqs/what-are-the-differences-between-mass,-weight,-force-and-load-(faq-mass-and-density) What are the differences between mass, weight, force and load?] www.npl.co.uk
- BBC: Getting the measure of a kilogram, news.bbc.co.uk
- NPR: This Kilogram Has A Weight-Loss Problem, conloquium cum Ricardo Steiner, physico in National Institute of Standards and Technology, www.npr.org
- Avogadro and molar Planck constants for the redefinition of the kilogram, www.inrim.it
- Realization of the awaited definition of the kilogram, www.inrim.it
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Vicimedia Communia plura habent quae ad chiliogramma spectant. |
