John Kerr (physicist)
| John Kerr | |
|---|---|
| John Kerr, c. 1860, photograph by Thomas Annan | |
| Born | 17 December 1824 Ardrossan, Scotland | 
| Died | 15 August 1907 (aged 82) Glasgow, Scotland | 
| Known for | Kerr effect | 
John Kerr FRS (/kɜːr/; 17 December 1824 – 15 August 1907) was a Scottish physicist and a pioneer in the field of electro-optics. He is best known for the discovery of what is now called the Kerr effect.