Faraday's Research on Electromagnetic Rotation

In this article,the authors illustrate Faraday's experiment progress of discovering the phenomena of electromagnetic rotation and his other correlative researches.By comparing Faraday's research with Ampere's Wollaston's researches,they explain Faraday's research uses for reference of both Ampere's Wollaston's researches,but Faraday has his own characteristic methods during his progress,which is the reason for his success.In the article,they also reveal the exact cause of Faraday's research,the original experimental instrument and the guide line,and then clarify some differences mistakes of former researches,ending with a discussion on Faraday's research method and scientific ideas.