Gyan Johari

Gyan P. Johari was a British-Canadian engineering researcher. He was a Professor Emeritus of Materials Science and Engineering at McMaster University. Johari is best known for his contributions to the state of liquids and the Johari–Goldstein relaxation.

Career
While teaching in New York City, Johari collaborated with Martin Goldstein in studying the state of liquids. Together, they discovered a dynamical process in viscous liquids and in the glassy state of polar liquids. Their research into a universal property of glasses and certain other disordered materials was published as the Johari–Goldstein relaxation. After joining the faculty at McMaster University, Johari was elected a Fellow of the Royal Society of Canada in 1993. In 2007, Johari received an honorary degree from Trinity College Dublin.