Show off your love for science with this unique black t-shirt! The shirt features the witty saying "You Matter until you multiply yourself times the speed of light squared... Then You Energy," a playful take on Einstein's famous equation E=mc². The text is printed in a crisp, white font, ensuring high visibility against the dark background. Made from a comfortable, soft fabric, this tee is perfect for everyday wear. Ideal for science enthusiasts, teachers, and students alike. It's a great conversation starter and a fun way to express your passion for physics. Grab yours today and let your inner scientist shine!