Gravity Mugs
Description: If you're a fan of sarcasm, funny sayings or general awesomeness, you need this tee! Funny Sarcastic Joke Tee's that are sure to get a smile. Politically incorrect, sometimes offensive but always funny tee shirts that tell the world exactly how you feel. Obey gravity it's the law funny science joke T-Shirt. For the up to no good, troublemaker in your life. Makes a unique gift for a birthday, party, or any holiday. Remember to order a size up if you prefer a looser fit.
Description: Perfect Tshirt for fans of astronomy, space, rockets, rocketry, model rockets, spaceships, mathematicians, algebra lovers, calculus lovers, math lovers, and math educators. Are you into Science and Physics? Then this shirt is for you! Makes a great gift for any geek, nerd, bookworm, tech lover, college student, or teacher. Funny science pun that includes a subtle disclaimer that in order to escape Earth's gravity, the escape velocity is 11.184 km/sec
