An iron can be worked even when it’s not hot. However, it becomes softer when heated, so working on cloth becomes easy. When iron, like any other metal, is heated, it absorbs energy which excites its molecules. This makes the metal softer. This property was known to ancient craftsmen and is used even today in producing iron implements.
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सोना यानि गोल्ड धरती पर पाई जाने वाली पवित्र और मूल्यवान धातुओं में से एक …