Ponce Inlet Lighthouse docents Bill Henry, John Mann and Steven Oshinski will present an interactive program that focuses on the challenges encountered throughout history when attempting to use, harness, and concentrate the energy and power of light. For sailors, the ability to see a lighthouse at a distance was a game-changer. Follow along as the lighthouse keepers explore the pitfalls and triumphs of light as a navigation aid and how it eventually led to the first modern optic, the Fresnel lens. This presentation is part of the free Lemonade Lectures series sponsored by Volusia County. Light refreshments and lemonade will be served.