Personalized Physics Teacher Meditating Youth T-Shirt. Ohm-m-m-m Physics Teacher Meditating text. Meditating with ohms is pure physics and a funny design for back to school, birthdays, graduation and holidays. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.