• Plastic and PVC-free

put one in your glass

and the gibbous – all the gradual changes of Earth’s natural satellite

or tales of celestial wonderment

or use it to take notes in your biology class

Equations That Changed the World 15 oz Ceramic Mug Discipline_Entomology • Plastic and PVC-freeExperience the power of equations that changed the world with this bold black and white ceramic mug. With these iconic equations, each sip of your favorite beverage will inspire you to think big and dream even bigger. Perfect for anyone who loves science, math, or history, this mug is a daily reminder that the impossible is possible. Get yours today and start each day with a new sense of possibility.