![photo of Willard Harrison Bennett](https://i0.wp.com/famousfindlay.com/wp-content/uploads/2022/07/bennett2.jpg?resize=200%2C256&ssl=1)
Invented the radio frequency mass spectrometer, in 1955, a device that measures the mass of ions. In the 1930’s Bennett pioneered studies in plasma physics – the study of gases ionized by high-voltage electricity. Born in Findlay.
(b.1903 d.1987: Physicist and inventor)