Antonio Pacinotti

(17 June 1841 – 24 March 1912)
Pacinotti was an Italian physicist and Professor of Physics at the University of Pisa.
1860. Invented an improved form of direct-current electrical generator (dynamo), and described it in a paper published in Il Nuovo Cimento of 1865.
It used a ring armature around which was wrapped a coil of wire, to produce a smoother current than that available from previous types of dynamo. He found that the device could also be used as an electric motor.
July 1862, One of several independent discoverers of the comet 109P/Swift-Tuttle. [1]