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    From the Vault: Oil and Troubled Water, Part 2

    enAugust 24, 2024
    How did ancient swimmers use oil before diving?
    What techniques did ancient pearl divers employ underwater?
    Who explained the phenomenon of oil preventing wave motion?
    What modern podcasts explore historical uses of oil?
    Why might oil layers help reduce tropical cyclone turbulence?

    Podcast Summary

    • Oil and waterAncient civilizations used oil to lubricate their bodies before swimming in cold waters and to calm stormy seas, and today we can learn about these historical uses through podcasts like Amber and Lacey's and David Eagleman's Inner Cosmos.

      Throughout history, oil has been used in various ways to enhance experiences involving water. From ancient texts, we learn that oil was used by swimmers to lubricate their bodies before entering cold waters, with the belief that it provided insulation and protection. This practice is mentioned in accounts of battles and swimming competitions, suggesting that it was a common method used by ancient civilizations. Additionally, oil was also used to calm stormy seas and improve visibility for divers. Today, we can find podcasts like Amber and Lacey's and David Eagleman's Inner Cosmos, or shows like Part-Time Genius and Stuff to Blow Your Mind, which explore these historical uses and many other fascinating topics. So whether you're interested in history, science, or just looking for a good listen, consider checking out these podcasts and diving into the world of oil and water.

    • Ancient underwater oil usageAncient divers in various regions used oil to improve underwater visibility, likely for better navigation and resource finding, by calming the water surface and creating a glass-like effect.

      Ancient free divers in various regions, such as the Persian Gulf and the waters between India and Sri Lanka, used oil to improve their underwater visibility. This practice was likely used to help divers see through the water more clearly, especially in choppy conditions. The oil was believed to calm the surface of the water, creating a glass-like effect. This technique was also used in medieval traditions, such as the Italian legend of Cola Pache, who was said to release oil into the water column while diving to improve his sight. The use of oil for underwater visibility is an intriguing aspect of ancient diving practices, and it highlights the importance of being able to see clearly in order to navigate and find valuable resources underwater. Additionally, the use of oil for this purpose suggests that ancient divers had a deep understanding of the ocean and its unique challenges. However, the exact mechanism of how oil improves underwater visibility remains a topic for further research.

    • Ancient diving techniquesAncient pearl divers used various methods like rupturing eardrums, using oil in ears, and plugging nostrils to enhance their underwater vision and reduce discomfort during dives, possibly influenced by traditional calming water practices.

      Ancient pearl divers used various techniques to enhance their underwater vision and experience less discomfort while diving. They ruptured their eardrums to equalize pressure and clarified the water by using oil in their ears. For their nostrils, they used plugs or nose clips to keep water out and possibly equalize sinus and ear pressure. These practices may have been influenced by traditional methods of calming water surfaces for better visibility. The use of oil underwater also raises the possibility of early human observations of oil interacting with water, potentially influencing later practices like oiling the body before diving. Ben Franklin, an early American polymath, is known for his scientific discoveries, including his experiments with electricity, which involved the storage and discharge of electrical potential in batteries. These inventions demonstrate the human curiosity and ingenuity in enhancing experiences and solving problems, from ancient diving techniques to modern technological advancements.

    • Franklin's Lightning RodBenjamin Franklin's advocacy for lightning rods was a political statement during colonial times, and modern research suggests blunt-tipped rods are more effective in attracting lightning strikes.

      Benjamin Franklin's groundbreaking electrical research included investigating the connection between electricity and lightning, leading to the invention of the lightning rod. However, there is a debate about whether Franklin personally conducted the famous kite experiment, and modern research suggests that blunt-tipped rods are more effective in attracting lightning strikes. Despite some misconceptions about how lightning rods work, Franklin's advocacy for their use was a political statement during colonial times. Additionally, Franklin's fascination with storms and natural phenomena is evident in his role as an envoy on a storm-tossed ship during his journey to England in 1757. This episode highlights Franklin's scientific curiosity, his contributions to the understanding of electricity, and the political implications of scientific discoveries.

    • Oil on water experimentBen Franklin's experimentation with adding oil to the water led to the discovery that a small amount could calm rough seas, demonstrating the impact of small interventions on natural phenomena.

      Ben Franklin's observation of smoother sailing ships led him to experiment with adding oil to the water to calm the waves. He found that a small amount of oil spread over a large area could make the water as smooth as a mirror. This simple discovery, made through a series of experiments, demonstrated the profound impact of small interventions on natural phenomena. Franklin's curiosity and persistence in investigating this observation led to a better understanding of the relationship between oil and water, and the practical application of this knowledge in calming rough seas.

    • Franklin's oil experimentFranklin's oil experiment led to the discovery of a monomolecular layer of oil on water, contributing to the first rough estimate of molecule size and understanding of oil-water repulsion

      Benjamin Franklin's experiment with oil on water led to the discovery of a monomolecular layer of oil on the surface of water. This discovery, although not made by Franklin himself, paved the way for later scientists to calculate the height of a single molecule of oil, which could have given Franklin the first roughly accurate estimate of the size of a molecule in history. Franklin's observation of the different behaviors of oil on solid surfaces versus water also contributed to his understanding of the natural repulsion between oil and water, and how it may have been used to still the waves. This discovery was significant in the field of science and laid the foundation for further research in the area of surface chemistry.

    • Oil monolayer wavesAn oil monolayer on water's surface prevents wave generation due to its hydrophobic reaction and inextensible behavior, potentially reducing turbulence in tropical cyclones

      An oil monolayer on the surface of water can prevent wave motion due to its hydrophobic chemical reaction with the water and itself. This oil layer behaves like an inextensible membrane, preventing the water from submitting to the periodic extensions and contractions required for wave generation. The oil strongly resists stretching or contracting, making it difficult for waves to be generated unless the forces are very strong. This phenomenon was first explained by Lord Rayleigh and has been suggested as a potential method to prevent the formation of turbulence in tropical cyclones, potentially reducing their overall strength. However, it's important to note that this is based on mathematical modeling and may not be effective in all situations, especially against powerful storms. Additionally, the Cino Show, hosted by addiction specialist and coach Cino McFarland, offers inspiration and education through compelling interviews with individuals with noteworthy stories every Wednesday on various podcast platforms.

    • Hurricane calming methodsDespite advancements in technology and scientific understanding, there's no proven method to stop or significantly reduce hurricane strength. Ancient beliefs in magical solutions, like the Venerable Bead story, are controversial and uncertain.

      Despite advancements in technology and scientific understanding, there is currently no proven method to stop or significantly reduce the strength of hurricanes. While researchers continue to explore various approaches, the idea of calming storms through oil or other means remains controversial and uncertain. The ancient belief in magical solutions to calm storms, as depicted in the Venerable Bead story, raises questions about the potential for exaggeration and misinterpretation. Ultimately, the fascination with the topic lies in its seemingly fantastical nature, yet the underlying scientific principles that make it plausible to some degree. If you're a UK listener, don't forget to subscribe to the Stuff to Blow Your Mind UK feed to continue receiving episodes.

    • Cino McFarland's missionCino McFarland, a podcast host, dedicates himself to helping people find freedom from struggles, especially addiction, through transformation, translation, and spiritual guidance. He emphasizes that no one should feel alone in their journey towards healing and growth.

      Cino McFarland, the host of the Cino Show, is dedicated to helping people wake up and find freedom from their struggles, particularly those related to addiction. He sees himself as a facilitator of transformation, a translator, and a spiritual guide. His mission is to bring light into people's lives and help them shift their narratives. You can listen to the Cino Show every Wednesday on various podcast platforms, including iHeart Radio App and Apple Podcast, to benefit from his insights and support. Most importantly, Cino emphasizes that no one should feel alone in their journey towards healing and growth.

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