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DNA science. Artificial intelligence. Smartphones and 3D printers. Science and technology have transformed the world we live in. But how did we get here? It wasn’t by accident. Well, sometimes it was. It was also the result of hard work, teamwork, and competition. And incredibly surprising moments. Hosted by bestselling author Steven Johnson (“How We Got To Now”), American Innovations uses immersive scenes to tell the stories of the scientists, engineers, and ordinary people behind the great ...
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Tycho Brahe’s observations of the Great Comet of 1577 and his discovery of atmospheric refraction led him to reject solid celestial spheres and reassess the structure of the cosmos. Seeking an alternative to both the Ptolemaic and Copernican systems, he developed a geo-heliocentric model in which the Sun orbited the Earth while the planets orbited the Sun, a theory he supported with years of precise measurements, including a (mistaken) parallax for Mars. Though he failed to find definitive proof, Tycho’s tireless pursuit of accuracy and his revolutionary instruments laid the groundwork for the astronomical breakthroughs that would follow.
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Music Credit: Folk Round Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License
Chapters
1. The Great Comet (00:00:00)
2. Tycho's observatory (00:01:23)
3. An interesting observation concerning refraction (00:04:05)
4. The Obliquity of the Ecliptic (00:06:38)
5. Measuring Refraction (00:08:38)
6. Copernicanism (00:11:30)
7. Tycho's alternative hypothesis (00:13:41)
8. Tycho's breakthrough (00:15:54)
9. Looking for evidence for the new model (00:17:42)
10. Ursus (00:21:57)
11. Tycho's publication (00:25:12)
12. End (00:27:27)
41 episodes
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