Lost technologies and the secrets they hold, in 53 minutes | Sam Kean: Full Interview

Quick Overview

Author Sam Kean successfully recreated ancient activities, including making ostrich egg canteens and Roman concrete, using experimental archaeology to gain visceral understanding of historical practices, which is often superior to armchair study.

Key Points: Sam Kean, author of "Dinner with King Tut," practices experimental archaeology to better understand lost technologies and ancient life. Kean replicated making an ostrich egg canteen (used by the San people 75,000 years ago) by cracking the thick shell with a stone tool and using an ostrich egg canteen to carry water. He recreated Roman concrete, noting that the ancient version, which uses quicklime and natron, self-heals cracks when exposed to water, unlike modern concrete. He also recreated ancient Roman bread using emmer, coriander, salt, and yeast, noting it tasted distinctly sour compared to modern beer due to the lack of hops. The process of creating ancient tools like flint blades or trepanation tools is dangerous; Kean accidentally cut himself while flint-knapping and discovered the Romans likely used ancient techniques to bore holes in skulls (trepanation) without killing the patient immediately. The Allies' mission to sabotage the Nazi atomic bomb project relied on espionage (like Klaus Fuchs) and intelligence gathering, including monitoring German heavy water production in Norway. The ethical dilemma of the atomic age is highlighted by Oppenheimer's later regret over creating a weapon that could destroy the world, contrasted with the fear that prevented the Nazis from developing one first.

Context: Sam Kean, an author known for exploring historical science and forgotten technologies, discusses the value of experimental archaeology—physically recreating ancient processes—as a way to gain deeper insight into lost practices, contrasting it with purely theoretical study. The interview covers experiments ranging from ancient food preparation (ostrich egg canteens, Roman bread) and construction (Roman concrete) to historical espionage related to World War II's Manhattan Project and the Nazi atomic bomb efforts.