Michael Faraday was a British scientist who made significant contributions to the fields of physics and chemistry in the 19th century. He is best known for his work in electromagnetism and electrochemistry. Faraday discovered electromagnetic induction, which laid the foundation for the development of electric generators and transformers. He also formulated the laws of electrolysis, which are fundamental to the understanding of chemical reactions involving electricity. Faraday's work has had a lasting impact on modern technology and science, and he is considered one of the greatest experimental scientists in history.