The result relied heavily on techniques developed for studying the topology of Heegaard splittings. Pneumatocysts grow after the first few blade splittings. It motivated much progress in the understanding of splittings of groups. There are several classes of three-manifolds where the set of Heegaard splittings is completely known. India is the world's biggest producer of mica blocks and mica splittings. There is an analogous notion of thin position, defined for knots, for Heegaard splittings. The single H-NMR signal is made complex by the "J" and two different "J" splittings. By using experimental indices of refraction he gave an estimate of the Stark splittings. The importance of handlebodies in 3-manifold theory comes from their connection with Heegaard splittings. Consumption of muscovite and phlogopite splittings was about 308 t in 2008. This diagram indicates the electron Zeeman, nuclear Zeeman and hyperfine splittings. Muscovite splittings from India accounted for essentially all US consumption. Splittings of Seifert fiber spaces are more subtle. For example, Waldhausen's Theorem shows that all splittings of formula 23 are standard. It is easy to show that the stabilization procedure yields stabilized splittings.