Presentation planned on Teflon invention

Chuck Martin will present “Roy Plunkett: Inventor of Teflon” at 6 p.m. on Monday, July 21, the Oakes-Beitman Memorial Library in Pleasant Hill.

Learn more about the accidental invention that changed the way Americans cook. For more information, call the library at 937-667-2731. NANCY BOWMAN, CONTRIBUTING WRITER