Volta-Congo languages — Infobox Language family name=Volta Congo region=West Africa familycolor=Niger Congo fam2=Atlantic Congo child1=Kru child2=? Senufo child3=Savannas child4=Kwa child5=Volta Niger child6=Benue CongoIn the classification of African languages, Volta… … Wikipedia
Phonograph — Turntable redirects here. For other uses, see Turntable (disambiguation). Edison cylinder phonograph ca. 1899 … Wikipedia
History of electromagnetism — The history of electromagnetism, that is the human understanding and recorded use of electromagnetic forces, dates back over two thousand years ago, see Timeline of electromagnetism. The ancients must have been acquainted with the effects of… … Wikipedia
Alberto Contador — Contador redirects here. For the actress and TV host, see Javiera Contador. This name uses Spanish naming customs; the first or paternal family name is Contador and the second or maternal family name is Velasco … Wikipedia
western Africa, history of — Introduction history of the region from the 11th century to the present. A reasonable body of sources for the writing of western African history begins to be available about AD 1000. Three centuries earlier, the Arabs (Arab) had… … Universalium
Alexander Graham Bell — Infobox Person name = Alexander Graham Bell image size = 225px caption = Portrait of Alexander Graham Bell c. 1910 birth date = 3 March 1847 birth place = Edinburgh, Scotland, UK death date = death date and age|1922|8|2|1847|3|3|df=y death place … Wikipedia
Water supply and sanitation in Ghana — The water supply and sanitation sector in Ghana faces severe problems, partly due to a neglect of the sector until the 1990s. Tariffs were kept at a low level which was far from reflecting the real cost of the service. Economic efficiency still… … Wikipedia
electromagnetism — /i lek troh mag ni tiz euhm/, n. 1. the phenomena associated with electric and magnetic fields and their interactions with each other and with electric charges and currents. 2. Also, electromagnetics. the science that deals with these phenomena.… … Universalium
Battery (electricity) — For other uses, see Battery (disambiguation). Various cells and batteries (top left to bottom right): two AA, one D, one handheld ham radio battery, two 9 volt (PP3), two AAA, one C, one … Wikipedia
Alexander Graham Bell honors and tributes — Alexander Graham Bell c.1918–1919 Alexander Graham Bell honours and tributes include honours bestowed upon him and awards named for him … Wikipedia
