Cannabis November 14, 2016November 14, 2016 thcscience_admin For weko-, the unofficial early twenty-first-century proposal for an SI unit prefix standing for 10−30, see here. 1°01′00″N 24°31′00″E / 1.01667°N 24.51667°E / 1.01667; 24.51667 Weko is a community in the Democratic Republic of the Congo.