13/06/25 - Episode was removed due to audio errors and reuploaded.  Sorry!

In 1572, a mysterious new star appeared in the sky, defying the ancient belief that the heavens never changed. Tycho Brahe, a Danish nobleman with a passion for astronomy, set out to uncover the truth. His meticulous observations challenged established ideas and sparked debates among scholars. But Tycho’s journey wasn’t just about science, it was a struggle against family expectations, social norms, and the limits of the tools at his disposal. This episode is the first of three parts exploring how one man’s curiosity reshaped our understanding of the universe and set the stage for a new era of discovery.

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In 1572, a mysterious new star appeared in the sky, defying the ancient belief that the heavens never changed. Tycho Brahe, a Danish nobleman with a passion for astronomy, set out to uncover the truth. His meticulous observations challenged established ideas and sparked debates among scholars. But Tycho’s journey wasn’t just about science, it was a struggle against family expectations, social norms, and the limits of the tools at his disposal. This episode is the first of three parts exploring how one man’s curiosity reshaped our understanding of the universe and set the stage for a new era of discovery.

Contact: [email protected]
BlueSky: https://bsky.app/profile/gethinrichards.bsky.social
Music Credit: Folk Round Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License

In this episode we trace the early development of magnetism and the compass—from ancient Chinese navigation to the groundbreaking insights of medieval and Renaissance Europe. The episode highlights the work of Peter Peregrinus, a 13th-century scholar whose detailed experiments with magnets laid the foundation for future magnetic science, and Robert Norman, who devised a method to reveal the mysterious “dip” of the magnetic needle. It also explores early efforts to understand magnetic declination, map its behavior, and investigate the nature of Earth’s magnetic forces. From the legends surrounding the compass’s invention to the precision of William Gilbert’s De Magnete, this episode examines how magnetism evolved from a mystical force into a measurable, mappable phenomenon—marking a crucial step on the path to modern science. 

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Music Credit: Folk Round Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License

At the start of the 17th century Harvey finally put all of the pieces in place.  He had discovered that blood circulates through the body with the heart acting as a pump.  Realising that he was undermining a millenia of Galenism, he set out carefully, working to convince his peers of his discovery.  He made many public demonstrations to support his findings, meeting both support and controversy.  

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 In 1602, William Harvey joined the College of Physicians to secure his medical career, but behind the scenes, he was conducting bold anatomical research. Through dissections, vivisections, and innovative experiments on blood flow and the heart, Harvey began challenging Galen’s teachings. His relentless curiosity would soon lead to the groundbreaking discovery of blood circulation. 

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In late 1599, William Harvey, having completed his B.A. at Cambridge, sought further education abroad. His father, a successful businessman, funded his journey to Padua, a renowned center of medical learning. 

At Padua, Harvey encountered the teachings of Aristotle, particularly the idea of understanding the "final cause" of things, which influenced his approach to medicine. He also studied under Hieronymous Fabricius, who combined Aristotelian philosophy with detailed dissections, shaping Harvey’s future medical practices. 

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 Realdo Colombo, a former student and colleague of Vesalius, challenged aspects of Galenic anatomy and made significant strides in understanding blood circulation. Through vivisection, Colombo discovered that blood circulates through the lungs, a finding that corrected earlier theories and contributed to a major shift in Renaissance anatomical and physiological studies. His work, though not initially credited, played a crucial role in advancing medical knowledge and laid the groundwork for future discoveries in human physiology. 

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The background and early life of the great renaissance anatomist Andreas Vesalius.

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Music Credit: Folk Round Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License