Earth System Analysis for Sustainability uses an integrated systems approach to provide a panoramic view of planetary dynamics since the inception of life some four billion years ago and to identify principles for responsible management of the global environment in the future.
The first observations of multiple-planet systems around other stars have deepened the consternation of astronomers and theorists of planetary dynamics.
Greg Laughlin of the University of California, Santa Cruz, an expert on planetary dynamics, said the chances of a false alarm rise to 12 percent when uncertainties about the star Gliese 581 itself — stellar noise — are added in.
Around 1900, the situation changed dramatically with more precise measurements of planetary dynamics, e.g. the planet Mercury's orbit, and the absence of the ether in precision laboratory experiments.
The inspired geometer was Isaac Newton (1642 [Old Style] 1727), who made planetary dynamics a matter entirely of geometry by replacing the planetary orbit by a succession of infinitesimal chords, planetary acceleration by a series of centripetal jerks, and, in keeping with Kepler's second law, time by an area.
"I'll lose sleep over this," joked Dr. Douglas N. C. Lin, a theorist of planetary dynamics at the University of California's Santa Cruz campus.
Note that Kepler postulated other less enduring mathematical models of planetary dynamics.
Understanding the subtle and difficult-to-predict boundary between stability and instability is important not only in the study of planetary dynamics but also in other endeavors, like designing a nuclear fusion reactor.
The solution of the field equations that describe general relativity can yield answers to different physical situations, such as planetary dynamics, the birth and death of stars, black holes, and the evolution of the universe.
Gravity defines macroscopic behaviour, and so general relativity describes large-scale physical phenomena such as planetary dynamics, the birth and death of stars, black holes, and the evolution of the universe.
