This film presents the discovery of the speed of light through the connection of various scientific experiments which preceded it. Using the work of Albert Einstein, Isaac Newton, and Galileo Galilei, James Clerk Maxwell made this discovery unintentionally after measuring the speed of electromagnetic waves. Throughout the film, animations of concepts in theoretical physics give viewers access into the minds of geniuses. Distributed by PBS Distribution.

Streaming video file encoded with permission for digital streaming by Infobase on September 04, 2015.

Introduction: In Pursuit of Light: The Physics of Light --(2:44) -- Galileo: Mathematics Professor -- (3:08) -- Galileo: Crafting a Telescope -- (3:16) -- Galileo: Star-Gazing -- (3:26) -- Galileo: Jupiter's Moons -- (3:00) -- Galileo: Measuring the Speed of Light -- (2:51) -- Newton: Understanding Color -- (3:25) -- History of Studying Color -- (2:28) -- Newton: Prism Experiments -- (4:13) -- Newton: The Crucial Experiment -- (3:01) -- Maxwell: Childhood Curiosity -- (3:37) -- Maxwell: Electromagnetic Waves -- (4:49) -- Maxwell: Calculating Speed -- (5:51) -- Credits: In Pursuit of Light: The Physics of Light -- (2:11).