This chapter explores early scientific approaches to celestial mechanics, focusing on Newton's concerns about orbital stability and Laplace's development of perturbation theory. The discussion highlights the chaotic nature of multi-body systems, particularly the three-body problem, and contrasts it with the restricted three-body problem for clearer predictions.
What is the three body problem? How will the universe end? Neil deGrasse Tyson and comedian Chuck Nice break down the case of Planet X, why the three body problem is unsolvable, and prevailing theories on how the universe will come to an end.
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