Lecture within WDS IPAS
Microsoft Teams
New International System of Units, SI
dr inż. Aleksandra Kowal
Remote lecture using MS Teams application. Access to the team from the intibs.pl domain (option "Join the team or create a team" + "Join the team by entering the code") using the code: 6qfzlub.
Wykład zdalny przy pomocy aplikacji MS Teams. Dostęp do zespołu z domeny ntibs.pl (opcja „Dołącz do zespołu lub utwórz zespół” + „Dołącz do zespołu, wpisując kod”) przy pomocy kodu: 6qfzlub.
On 16 November 2018, during the 26th meeting of the General Conference on Weights and Measures (CGPM) in Versailles, the new International System of Units, SI, was approved. In the new system, all seven units of measurement are defined by universal constants making the system independent of the properties of matter, as well as the place and time of the individual units realization. The four basic units - kilogram, ampere, kelvin, and mole - were re-defined in terms of the following physical constants: the Planck constant h, the elementary charge e, the Boltzmann constant k, and the Avogadro constant NA, respectively.
In the presentation, a brief history of the system of units is presented, and information on the activity of scientists and the International Bureau of Weights and Measures that led to the redefinition of the system is provided.
