UnitSystems (julia): Physical unit systems (Metric, English, Natural, etc...)
Keywords: physics|natural-units|codata|cgs-units|constants|electronics-engineering|si-units|units-of-measurement|unit-system|unit-converter|units|nist|units-of-measure|mathematica|wolfram-language|julia-language|physical-quantities|dimensional-analysis|unit-conversion|unit-conversions