Clean geometry. Instant recognition.The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment.Front and center, the embroidered Atomic Nucleus Symbol Nuclear Power design turns a recognizable symbol, phrase, character, or motif into a clean piece of wearable artwork.The symbol reads instantly at a glance, which is exactly why simple iconography works so well as embroidery on a bucket hat.The simple emblem works especially well when the rest of the outfit is understated.🧢 Product Details 100% cotton twill 3¾″ (7.6 cm) crown 2¼″ (5.1 cm) brim One size fits most Sewn eyelets for added breathability Size guide A (inches) B (inches) C (inches) One size 22 3 2 A (cm) B (cm) C (cm) One size 55.9 7.6 5.1