E=MC2 Energy Mass Speed of Light Theory Physics Relativity-T-Shirt

Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 65% Cotton, 35% Polyester; Imported; Machine wash cold with like colors, dry low heat; Perfect gift for physics and calculus students or physics and calculus teachers. Would even make a cool gift for an engineering student, or even for yourself as a discussion piece to get people interested in math and scientific theories.; Relativity Equation for Energy Mass Speed of Light Squared Theory. Many experiments have been performed over and over again with accuracy to prove these theories true.; Lightweight, Classic fit, Double-needle sleeve and bottom hem