This awesome women\'s tee should bring you some joy! It features The Cambridge Encyclopaedia of Astronomy\'s illustration of radio waves from pulsar CP 1919. Treating yourself to a new t shirt is one of life\'s little pleasures! This is great for fans of science or maths, although whether it will help you to understand long division is unknown. This is a ladies Pulsar CP 1919 tee, not an officially licensed product. Sustainability Message All 8Ball Originals garments are WRAP certified, REACH compliant and Fair Labor Association accredited. They are printed in UK using Oeka-Tex and GOTS certified water-based inks.