A tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
A complete metric system of units of measurement for scientists; fundamental quantities are length (meter) and mass (kilogram) and time (second) and electric current (ampere) and temperature (kelvin) and amount of matter (mole) and luminous intensity (candela)
Systeme International d'UnitesSysteme InternationalSI system
The Situationist International was an international organization of social revolutionaries made up of avant-garde artists, intellectuals, and political theorists.
The Aymara or Aimara people are an indigenous people in the Andes and Altiplano regions of South America; about 2.3 million live in northwest Argentina, Bolivia, Chile, and Peru.
Sarekat Islam or Syarikat Islam was an Indonesian socio-political organization founded at the beginning of the 20th Century during the Dutch colonial era.
In 2019, four of the seven SI base units specified in the International System of Quantities were redefined in terms of natural physical constants, rather than human artifacts such as the standard kilogram.
2019 redefinition of the SI base unitsredefinition of SI base units
The Hellenic Air Force Academy is a military academy responsible for supplying the Hellenic Air Force with military pilots, aeronautical engineers, air traffic and air defence controllers.
The University of Michigan School of Information is the informatics and information science school of the University of Michigan, a public research university in Ann Arbor, Michigan.
In the history of Mexico, the Plan de la Noria was a revolutionary call to arms intended to oust President Benito Juárez, who had been elected to a fourth term.
Yu Di, courtesy name Yunyuan, formally initially Duke Li of Yan and later Duke Si of Yan, was a Chinese diplomat, military general, politician, and warlord during the Tang dynasty.
The Red Party, also known as the Party of the Regeneration and nicknamed together the Tailed Ones, was an historical Dominican political party from the late 19th century to the mid-20th century founded by Buenaventura Báez.
«Esta noche sólo cantan para mí» es el segundo sencillo del tercer álbum de estudio del grupo de pop La Casa Azul, La revolución sexual lanzado en España por Elefant Records en julio de 2008.
Shrub with terminal tufts of elongated leaves used locally for thatching and clothing; thick sweet roots are used as food; tropical southeastern Asia, Australia and Hawaii
Sì is a traditional spherical dessert made from glutinous rice, eaten in celebration of the Winter Solstice festival in Fuzhou, Fujian Province, China.
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