Search Results

Videos from YouTube

Topics related to "Burning desire to learn ; Pupils and parents were armed with Bunsen burners"

	burner ... Read more
	Bunsen burner Bunsen burner gas burner, commonly used in scientific laboratories, consisting essentially of a hollow tube which is fitted vertically around the flame and which has an opening at the base to admit air. A smokeless, nonluminous flame of high temperature is produced. The underlying principle of the... Read more
	lighting lighting light produced by artificial means to allow visibility in enclosures and at night. For stage lighting, see scene design and stage lighting . Early Sources of Artificial Lighting The earliest means of artificial lighting were the open fire, firebrands, and torches. The first lamp was a... Read more
	flame flame phenomenon associated with the chemical reaction of a gas that has been heated above its kindling temperature with some other gas, usually atmospheric oxygen (see combustion ). The heat and light given off are characteristic of the specific chemical reaction (or reactions) going on; the... Read more
	Carbonari Carbonari [Ital.,=charcoal burners], members of a secret society that flourished in Italy, Spain, and France early in the 19th cent. Possibly derived from Freemasonry, the society originated in the kingdom of Naples in the reign of Murat (1808-15) and drew its members from all stations of life,... Read more
	Robert Wilhelm Bunsen Robert Wilhelm Bunsen , 1811-99, German scientist, educated at the Univ. of Göttingen, where he received his doctorate in 1830. He served on the faculties of several universities and was at Heidelberg from 1852 to 1889. His first important contribution to chemistry came with his investigation... Read more
	Fred Williams Williams, Fred (b Melbourne, 23 Jan. 1927; d Melbourne, 22 Apr. 1982). Australian painter and printmaker, regarded as the most original portrayer of his country's landscape. He studied in Melbourne, 1944–9, then in London, 1951–6. His earliest etchings, often with music-hall subjects,... Read more
	flame test flame test test used in the identification of certain metals. It is based on the observation that light emitted by any element gives a unique spectrum when passed through a spectroscope. When a salt of the metal is introduced into a Bunsen burner flame, the metallic ion produces characteristic... Read more
	mixture mixture in chemistry, a physical combination of two or more pure substances (i.e., elements or compounds). A mixture is distinguished from a compound, which is formed by the chemical combination of two or more pure substances in a fixed, definite proportion. The components of a mixture retain their... Read more
	Coleman Coleman ♂ Variant of Colman (from Late Latin Columbanus, a derivative of Columba ‘dove’ see Callum). In part it also represents a transferred use of the surname, which derives in most cases from the Gaelic personal name Colmán, but in others may be an occupational term for... Read more