Complex sentence: Electromagnetic induction, the principle of the operation of the transformer, was discovered independently by Michael Faraday in 1831 and Joseph Henry in 1832, although Faraday was the first to publish the results of his experiments and thus receive credit for the discovery.
Split into simpler sentences: Electromagnetic induction, the principle of the operation of the transformer, was discovered independently by Michael Faraday in 1831 and Joseph Henry in 1832. Also, Faraday was the first to publish the results of his experiments and thus receive credit for the discovery.