025 - Book 15 Chapters 19 - 26Twenty-nine varieties of the fig historical anecdotes connected with the fig episode artwork

EPISODE · Feb 3, 2026 · 32 MIN

025 - Book 15 Chapters 19 - 26Twenty-nine varieties of the fig historical anecdotes connected with the fig

from Opticks · host Pliny the Elder

Discover the wonders of the natural world through Naturalis Historia, an incredible encyclopedia authored by Pliny the Elder around AD 77-79. This monumental work stands as one of the largest surviving texts from the Roman Empire, ambitiously covering the vast expanse of ancient knowledge. Pliny meticulously references original sources, creating a model for all subsequent encyclopedias with its extensive subject matter and comprehensive indexing. The text is divided into two main realms the organic world of plants and animals, and the inorganic domain of minerals and metals, enriched with insightful digressions. Pliny goes beyond mere description, examining how humanity, particularly the Romans, interacts with nature—both in its appreciation and exploitation. This third volume features books eleven to fifteen, delving into the fascinating topics of insects, trees, exotic flora, and fruit trees, offering a treasure trove of knowledge for history enthusiasts and nature lovers alike.

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025 - Book 15 Chapters 19 - 26Twenty-nine varieties of the fig historical anecdotes connected with the fig

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Adventures of Unc Billy Possum Sir Isaac Newton Step into the fascinating world of optics with the legendary physicist Sir Isaac Newton, who captivated audiences with his lectures from 1670 to 1672. Explore his groundbreaking experiments on light refraction through prisms and his discovery of chromatic aberration. Delve into his revolutionary ideas about the corpuscular nature of light and the mysterious ether that transmits forces between particles. This fourth edition of Opticks, published in 1730 and personally corrected by Newton before his passing, offers a glimpse into his profound insights. Join us as we uncover the brilliance of Newtons work, summarized beautifully by Availle. Trees Every Child Should Know Christiaan Huygens Published in 1690, Treatise on Light stands as one of the most significant scientific volumes on light prior to Newtons Opticks. This groundbreaking work delves into the nature of light, exploring its velocity and the fascinating phenomena of refraction and reflection when it interacts with surfaces. A significant portion of the book is dedicated to the intriguing double refraction observed in Iceland crystal, with all conclusions meticulously supported by geometric proofs. Christiaan Huygens (1629 - 1695), a distinguished physicist and astronomer, made remarkable contributions, including the concepts of centrifugal force and collision laws, while championing the wave theory of light. As a contemporary of great minds like Galileo and Descartes, Huygens also held membership in the French Royal Society from 1663. (Summary by Availle) Treatise on Light Christiaan Huygens Treatise on Light was published in 1690 and is probably the largest scientific volume on light published before Newton's Opticks. The book explains how light travels (i.e., that it has a certain velocity), and what happens when it hits a surface (refraction and reflection). A large portion of the book is devoted to the double refraction occurring in Iceland chrystal, and all drawn conclusions are proved geometrically. Christiaan Huygens (1629 - 1695) was a prominent physicist and astronomer. His main discoveries are the centrifugal force, collision laws for bodies and the argument that light consists of waves. He was a contemporary of Galilei and Descartes, and a member of the French Royal Society since 1663. (Summary by Availle)

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