“Your guest lecture was very good indeed” – Joseph May, CEO of Slipstream Services.

“Mark, fantastic job. Thanks so much for doing it. Your presentation was very well received by the class, and I learned a few things I didn’t know, which makes me even more appreciative.” – Professor John J. Geohegan.

I had the privilege recently of giving a virtual guest lecture on John J. Geoghegan’s fascinating course, When Giants Ruled The Sky, at the Fromm Institute for Lifelong Learning, University of San Fransisco. My topic was the Race to Fly to the North Pole in the 1920s. This was the subject of my book N-4 DOWN: The Hunt for the Arctic airship Italia (HarperCollins, 2021).

I was joined as a guest speaker on the course by the visionary and inspirational Alan Weston, CEO of LTA Research, and the fantastic S. C. Gwynne, the bestselling author of His Majesty’s Airship: The Life and Tragic Death of the World’s Largest Flying Machine.

The course is based on John’s excellent book of the same name When Giants Ruled The Sky.