The Collaborative International Dictionary of English. 2000.
washoe process — ˈwä(ˌ)shō noun Usage: usually capitalized W Etymology: from Washoe county, northwest Nevada : a process of treating silver ores by grinding in pans or tubs with the addition of mercury and sometimes of chemicals (as blue vitriol and salt) … Useful english dictionary
Patio process — The patio process was a process used to extract silver from ore. It was developed by Bartolomé Medina in Pachuca, Hidalgo, Mexico in 1557 for the Pachuca Real del Monte mines. The patio process was the first process to use mercury amalgamation to … Wikipedia
Pan amalgamation — The Pan amalgamation process is a method to extract silver from ore, using mercury. The process was widely used from 1609 through the 1800s; it is no longer used. The patio process had been used to extract silver from ore since its invention in… … Wikipedia
Comstock Lode — Bonanza ore, Consolidated California and Virginia Mine, Comstock Lode The Comstock Lode was the first major U.S. discovery of silver ore, located under what is now Virginia City, Nevada, on the eastern slope of Mount Davidson, a peak in the… … Wikipedia
concept formation — Process of developing abstract rules or mental constructs based on sensory experience. Concept formation figures prominently in cognitive development and was a subject of great importance to Jean Piaget, who argued that learning entails an… … Universalium
Great Basin Indian — ▪ people Introduction member of any of the indigenous North American peoples inhabiting the traditional culture area comprising almost all of the present day states of Utah and Nevada as well as substantial portions of Oregon, Idaho, Wyoming,… … Universalium
animal learning — ▪ zoology Introduction the alternation of behaviour as a result of individual experience. When an organism can perceive and change its behaviour, it is said to learn. That animals can learn seems to go without saying. The cat that… … Universalium
Nim Chimpsky — (November 19, 1973 – March 10, 2000) was a chimpanzee who was the subject of an extended study of animal language acquisition (codenamed 6.001) at Columbia University, led by Herbert S. Terrace. The validity of the study is disputed, as Terrace… … Wikipedia
Visual arts by indigenous peoples of the Americas — encompasses the visual artistic traditions of the indigenous peoples of the Americas from ancient times to the present. These include works from South America, Mesoamerica, North America including Greenland, as well as Siberian Yup ik peoples who … Wikipedia
Lake Tahoe — Tahoe redirects here. For other uses, see Tahoe (disambiguation). Lake Tahoe Lake Tahoe from the east shore (in Nevada) Location California and Nevada,USA … Wikipedia
