Kepler's Laws: Why Are Planetary Orbits Elliptical?

Описание к видео Kepler's Laws: Why Are Planetary Orbits Elliptical?

Of all the possible shapes, why do all planets orbit stars in ellipses? This is known as Kepler's 1st Law of Planetary Motion, but why is it true?
Using Newton's laws of gravity and motion, Ryan MacDonald - a Theoretical Astrophysicist based at Cambridge University - proves from first principles Kepler's laws of planetary motion (Part 1 of 2)

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