From 1956, the Homemade Homeschoolers Podcast Network presents part 1 of Science in Action: Submarines.

Science in Action was a San Francisco TV program produced at the California Academy of Sciences and hosted by Dr. Earl S. Herald at 7 p.m. once a week for 14 years, between 1952 and 1966. Dr. Herald was superintendent of the Steinhart Aquarium at the California Academy of Sciences, and an expert on fish.

This episode, in Kinescope, is devoted to submarines – their design, operation, and the duties of the crew. Guests include Fleet Admiral Chester Nimitz and Vice Admiral Charles Lockwood to explain the technology behind Submarines of the time, such as the famous nuclear-powered Nautilus (the first vessel to complete a submerged transit across the North Pole), using models, diagrams and film footage.

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