| AlchemyJoseph Wright of Derby, 1771) Alchemy is an early protoscientific practice combining elements of chemistry, physics, astrology, art, semiotics, metallurgy, medicine, mysticism, and religion. Two intertwined goals sought by many alchemists were the philoso | AlienFor the 1979 movie, see Alien (movie). For live organisms which are not from Earth, see Extraterrestrial life Aliens are foreigners to their surroundings. The word is commonly used in law to denote non- citizens of the country of their whereabouts, and in | Al GoreAlbert Arnold Gore Jr. born March 31, 1948) is an American Democratic politician who served as the forty-fifth Vice President of the United States from 1993 to 2001. He ran for President in 2000 following Bill Clinton's two four-year terms, but was defeat |
| AlaskaOn January 3, 1959, Alaska was admitted to the United States as the 49th state. The population of the state is 626,932, as of 2000. The name "Alaska" is most likely derived from the Aleut word for "great country" or "mainland. The natives called it "Alyes | Aldous HuxleyAldous Leonard Huxley ( July 26, 1894 November 22, 1963) was a British writer. Best known for his novels and wide-ranging output of essays, he also published short stories, poetry and travel writing. Biography Early years Huxley was born in Godalming, Sur | AlgaThe algae (singular is alga comprise several different groups of living things that produce energy through photosynthesis. They are generally regarded as simple plants, and some are related to the higher plants. Others represent independent lines of evolu |
| AlkaneAn alkane in organic chemistry is a type of hydrocarbon in which the molecule has the maximum possible number of hydrogen atoms and so has no double bonds (they are saturated). The generic formula for acyclic alkanes, also known as aliphatic hydrocarbons | Alkali metalThe alkali metals are a chemical series. They are the elements in Group 1 of the Periodic Table, excluding hydrogen: that is, lithium, sodium, potassium, rubidium, caesium and francium. They are all highly reactive. The alkali metals are silvery colored, | AlphabetAn alphabet is a complete standardized set of letters—basic written symbols—each of which roughly represents or represented historically a phoneme of a spoken language. This as distinguished from other writing systems such as ideograms, in which symbols r |