The international system of units : a shift to fundamental constants. : NR16-429/2023E-PDF
"The International System of Units (SI) is the most widely used system of units with official status in almost every country in the world. It contains seven base units, which are all dependent simply, repeatably and accurately on physical constants, which are always the same and can be measured anywhere. The Planck constant is a fundamental constant of nature that scales the relationship between the energy and frequency of light. The National Research Council of Canada (NRC) is one of a few national metrology institutes providing leadership in experiments that are essential to determining the unit kilogram from Planck constant"--Innovation in Canada’s measurement standards, page [3].
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.930458&sl=1
| Ministère/Organisme | National Research Council Canada, issuing body. |
|---|---|
| Titre | The international system of units : a shift to fundamental constants. |
| Type de publication | Monographie |
| Langue | [Anglais] |
| Autres langues publiées | [Français] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Cover title. Issued also in French under title: Le système international d'unités : vers des constantes fondamentales. |
| Information sur la publication | [Ottawa] : National Research Council Canada = Conseil national de recherches Canada, [2023]. ©2023 |
| Description | 1 online resource (8 unnumbered pages) : illustrations, photographs |
| ISBN | 9780660688718 |
| Numéro de catalogue |
|
| Descripteurs | Metric system -- Canada. |