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Yale University

Hubble's Law, the Big Bang, and Measuring Cosmic Distances

Yale University via YouTube

Overview

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Explore the foundations of modern cosmology in this 51-minute lecture from Yale University's Frontiers/Controversies in Astrophysics course. Delve into the historical development of cosmology as a scientific discipline, including the discovery of dark energy and dark matter. Examine the pivotal "Great Debate" surrounding spiral nebulae and Hubble's groundbreaking redshift diagram, which laid the groundwork for Big Bang cosmology. Learn about various methods for measuring celestial distances, including the parallax and standard candle techniques. Gain insight into the magnitude scale for measuring brightness and review logarithms. This comprehensive lecture covers key topics in astrophysics, from the basics of cosmology to advanced measurement techniques, providing a solid foundation for understanding the universe's structure and evolution.

Syllabus

- Chapter 1. Introduction to Cosmology
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- Chapter 2. Spiral Nebulae and Hubble's Redshift Diagram
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- Chapter 3. Measuring the Distance of a Star: The Parallax Method
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- Chapter 4. Measuring Brightness: The Standard Candle Method
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- Chapter 5. Absolute and Apparent Magnitude
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- Chapter 6. Conclusion
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