In the Vinony graph
Within Vinony's link graph, Planck mass connects to Planck units.
Its subject is documented across 37 Wikipedia language editions.
Wikidata facts
- Instance of
- Planck units
- Subclass of
- natural units
- Part of
- Planck units
- Named after
- Max Planck
- Image
- Derived Planck Units CODATA 2014.png
Show 6 more facts
- numeric value
- 0.00000002176434
- conversion to SI unit
- 0.00000002176434
- measured physical quantity
- mass
- conversion to standard unit
- 21.764
- Wikidata SPARQL query equivalent
- wd:Q592634 p:P2370/psn:P2370 [wikibase:quantityAmount ?source; wikibase:quantityUnit ?base]. ?item p:P2370/psn:P2370 [wikibase:quantityAmount ?target; wikibase:quantityUnit ?base]. BIND(?source / ?target as ?value)
- maintained by WikiProject
- WikiProject Mathematics
Sources (1)
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Encyclopedic overview
A mass–radius log plot of various objects
In particle physics and physical cosmology, Planck units are a system of units of measurement defined exclusively in terms of four universal physical constants: c, G, ħ, and kB. Expressing one of these physical constants in terms of Planck units yields a numerical value of 1. They are a system of natural units, defined using fundamental properties of nature (specifically, properties of free space) rather than properties of a chosen prototype object. Originally proposed in 1899 by German physicist Max Planck, they are relevant in research on unified theories such as quantum gravity.
Excerpted from Wikipedia’s “Planck mass” article, available under the CC BY-SA 4.0 licence.