Why do Gold smiths blow the outer most Zone of a flame with a metal blow pipe for melting gold and sliver
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Answer:
Goldsmiths blow the outer most zone of a flame in order to melt gold or silver because the outermost zone is a zone of complete combustion, also known as luminous zone. The ignition temperature of this zone is the highest and thus helps in melting the metal the best in order to creat desired designs or patterns.
Explanation:
Because outer layer is hot.
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