Critical Mass: How One Thing Leads to Another, a non-fiction book by English chemist and physicist Philip Ball originally published in 2004, discusses the concept of a "physics of society". Ball discusses thinkers such as Thomas Hobbes, Lewis Mumford, Emyr Hughes, and Gottfried Achenwall who have attempted to apply (or argue against the use of) physics, chemistry, or mathematics in the study of mass social phenomena. He also discusses how the concept relates to recent research, including his own. Source: Wikipedia (en)