Personalized Ohm Mighty Physics Teacher Men's V-Neck T-Shirt. Ohm Mighty text in a star burst and the text Physics Teacher is a humorous play on words to tickle the funny bone of your favorite teacher at back to school, graduation or holidays. 4.7 oz., 100% pre-shrunk cotton Narrow, set-in 1x1 mitered V-neck collar Shoulder-to-shoulder taping Double-needle stitched sleeves and bottom hem