PBS Space Time Season 2020 Episode 3 Solutions to the Three Body Problem

PBS Space Time is a science documentary series that covers a range of topics pertaining to outer space, the universe, and the laws of physics. Season 2020 Episode 3, titled "Solutions to the Three Body Problem," examines one of the most perplexing and complex problems in physics.

The Three Body Problem refers to the issue of calculating the trajectories of three celestial bodies that orbit each other. In the case of these celestial bodies, the forces of gravity are constantly acting on them, causing them to move in unpredictable ways. This is due to a number of factors, including the distance between the bodies, their mass, and their positions.

The episode delves into the history of the Three Body Problem, exploring the work of scientists such as Isaac Newton and Henri Poincaré. Despite the fact that these brilliant minds made significant contributions to the field of physics, they were unable to find a satisfactory solution to the Three Body Problem.

The episode then goes on to discuss the current state of research into the Three Body Problem. Scientists are using a range of techniques and technologies to try to solve this issue, including supercomputers, artificial intelligence, and machine learning. These technologies are allowing scientists to create complex simulations that model the movements of celestial bodies with incredible accuracy.

The episode also takes a deep dive into some of the solutions that have been proposed for the Three Body Problem. These include the use of Lagrangian points, which are points in space where the gravitational forces of two large celestial bodies (such as planets) and the centrifugal force of a smaller body balance each other out. This allows for a smaller body to remain in a stable orbit around a larger body.

Another proposed solution is the use of gravitational slingshots, which allow spacecraft to harness the gravitational pull of a planet to propel them further into space. This technique has been used by a number of spacecraft, including the Voyager probes, which are currently exploring the outer reaches of our solar system.

The episode also explores some of the implications of solving the Three Body Problem. One of the most exciting aspects of this is the potential for interplanetary travel. By understanding the movements of celestial bodies, we can better plan spacecraft trajectories and potentially travel further and faster than we ever have before.

Overall, "Solutions to the Three Body Problem" is an engaging and thought-provoking episode that delves into one of the most complex problems in physics. Viewers are sure to come away with a deeper understanding of the challenges posed by the movements of celestial bodies and the solutions that scientists are working on to overcome them.