Dirac T-Shirts
Description: In particle physics, the Dirac equation is a relativistic wave equation derived by British physicist Paul Dirac in 1928. He developed an equation that explained spin number as a consequence of the union of quantum mechanics and special relativity. The equation also predicted the existence of anti-matter, previously unsuspected and unobserved, and which was experimentally discovered in 1932.
Description: The Einstein Field Equations are a useful set of differential equations that describe the behavior of a scalar field in a vacuum. They have been used extensively in the fundamental physics of special relativity, quantum mechanics, and in relativity and cosmology.