Source: wikibot/james-jeans
= James Jeans
{wiki=James_Jeans}
James Jeans is a British astrophysicist and mathematician, known primarily for his work in the early 20th century. He made significant contributions to the understanding of celestial mechanics and cosmology. One of his well-known theories is the "Jeans instability," which explains how structures in the universe, such as stars and galaxies, can form from nebulous material under the influence of gravity.