Acceleration Sensors T-Shirt | Einstein's Equivalence PrincipleFor those who understand that falling and accelerating are basically just gravitational frenemies Product Description Finally, a shirt that explains why your expensive drone knows which way is up! Our "Acceleration Sensors: Detect Orientation Via Einstein's Equivalence Principle" t shirt celebrates the mind bending physics that keeps your quadcopter from having an existential crisis about which direction gravity is pulling it. This intellectual