Edugain Q&A

science - physics


who invented magnet ? and how ?                        

Magnet was discovered by a Greek shepherd named Magnes.it is said that the nail in his shoes and the iron tip of his staff got stuck to a large black rock on which he was standing. This was named as magnetite. This way first magnet was discovered.

Thank you Vartika     smiley

 

why gram is standard unit of mass

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