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Gravitational Forces: Orbits and Space Debris
This lecture covers the principles of gravitational forces, focusing on satellite orbits and space debris. Topics include different types of satellite orbits, the impact of space debris on satellite operations, the concept of escape velocity, and the characteristics of black holes. The instructor also discusses the speed of rotation of spiral galaxies and the properties of planets in the solar system, highlighting the transition from the geocentric to the heliocentric model. The presentation concludes with a discussion on the concept of angular momentum and its applications in celestial mechanics.