Jason Hurlburt has written e-books and books on physics. You can buy him on xlibris.com and other online retailers. He has written the following e-books and books on physics: Hurlburt's Constant, Big Bang Hole, Hurlburt Effect, Hurlburt's Rule, Hurlburt's Law, Torque of Universe, Thermal Volume, Black Hole Distribution, and Gravitational Forces.