'All living things on our planet share the same genetic code - we are all just different messages written in the universal language of DNA.' CASSELL'S LAWS OF NATURE is an exciting new work of popular science reference. It describes, in a series of clear and concise A-Z essays, the discovery, significance and functioning of the laws, principles and theories that govern the workings of our physical universe. As well as describing the historical milestones of human understanding in every area of the sciences, from Kepler's Law of Planetary Motion to Mendel's Laws of Genetics, CASSELL'S LAWS OF NATURE unravels for a general readership the often mystifying complexities of 20th-century scientific theory, from Heisenberg's Uncertainty Principle to Godel's Incompleteness Theorems.