This week, we're learning about the science and history of lighter-than-air flight. We'll spend the hour with biographer and science writer Richard Holmes, to talk about his newest book, "Falling Upwards: How We Took to the Air." We'll talk about the technology of 19th century ballooning, and the pioneering men and women who took to the skies and changed our view of the world.

(For more information on the Strathcona Freethought Society, check out their Facebook and Meetup pages.)