- Source: World Metrology Day
World Metrology Day is an event occurring on 20 May celebrating the International System of Units. The date is the anniversary of the signing of the Metre Convention in 1875. Metrology is the study of measurement.
The World Metrology Day project is currently realized jointly by the BIPM and the OIML.
2019
The 2019 Metrology Day is when the changes to the International System that were decided on in 2018 come into effect, among them the replacement of the International Prototype of the Kilogram with a redefinition based on the Planck constant.
2023
World Metrology Day adopted as one of UNESCO international days.
External links
WorldMetrologyDay.org – official website
See also
2019 revision of the SI
References
Kata Kunci Pencarian:
- Bumi
- Laju cahaya
- World Metrology Day
- Metrology
- International Bureau of Weights and Measures
- Kibble balance
- UNESCO international days
- May
- Chronometry
- Pseudoscientific metrology
- Metre Convention
- May 20
