Mathmatical Formulas Coffee Mug
Get those neurons fired up while you wake to your favorite morning beverage! The Mathematical Formulas Coffee Mug comes in a lovely black, glazed ceramic, with light blue, green, white and ochre formulas decaled on it. Wait, is that Einstein's Theory of Relativity? Why yes, and there's the Boltzmann constant, the theory of a physical constant relating energy at the individual particle level with temperature! Both certainly appropriate to muse on during the morning rush, or in the evening—sipping hot cider at the end of a long day at the lab/office.