Computation materials science utilizes computers to simulate material structures and predict their feasibility and properties. Recent and rapid advances in computer technology combined with the reduction in the cost of computers, have made this one of the fastest growing areas in materials science. Using computational material science, a researcher creates a computer model of a desired substance. Then by changing the parameters of the program, the scientist can determine if the material is stable under a variety of different conditions. Computer modeling can also help scientists determine the various properties of a material, such as the magnetic properties of an advanced ceramic. Using the computer allows results to be determined without wasting time and money on actual physical fabrication and testing of the material in question.