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Continuing improvements led to the furnace and bellows and provided, for the first time, the ability to smelt and forge gold, copper, silver, and lead – native metals found in relatively pure form in nature. The advantages of copper tools over stone, bone, and wooden tools were quickly apparent to early humans, and native copper was probably used from near the beginning of Neolithic times . Native copper does not naturally occur in large amounts, but copper ores are quite common and some of them produce metal easily when burned in wood or charcoal fires. Eventually, the working of metals led to the discovery of alloys such as bronze and brass . The first uses of iron alloys such as steel dates to around 1800 BCE. Science, Engineering, And Technology Meet the people who can coax treasure out of messy, unstructured data. Present performance appraisal techniques evaluate behavior by making subjective and impressionistic judgments rather than quantitative judgments and providing... Con

Electronic Commerce Research and Applications aims to create and disseminate enduring knowledge for the fast-changing e-commerce environment. A major dilemma in e-commerce research is how to achieve a balance between the currency and the life span of knowledge. Mail Magazine To receive the latest news on our products, please fill in the subscription form. E-JC was founded in 1994 by Herbert S. Wilf and Neil Calkin, making it one of the oldest electronic journals. This option searches the Official Gazette for marks published or registered on a particular date. Please logout when you are done to release system resources allocated for you. Test Your Vocabulary With Our Fun Image Quizzes Dub music was pioneered by studio engineers, such as Sylvan Morris, King Tubby, Errol Thompson, Lee "Scratch" Perry, and Scientist, producing reggae-influenced experimental music with electronic sound technology, in recording studios and at sound system parties. These were fertile years for e

Ambient dub was pioneered by King Tubby and other Jamaican sound artists, using DJ-inspired ambient electronics, complete with drop-outs, echo, equalization and psychedelic electronic effects. It featured layering techniques and incorporated elements of world music, deep basslines and harmonic sounds. Other notable artists within the genre include Dreadzone, Higher Intelligence Agency, The Orb, Ott, Loop Guru, Woob and Transglobal Underground. Laurie Spiegel developed the algorithmic musical composition software "Music Mouse" for Macintosh, Amiga, and Atari computers. Musical melodies were first generated by the computer CSIRAC in Australia in 1950. There were newspaper reports from America and England that computers may have played music earlier, but thorough research has debunked these stories as there is no evidence to support the newspaper reports . Origin Of Electronic In the United States, electronic music was being created as early as 1939, when John Cage published