Friction Is Fun

Enjoy showing a little bit of formula fun— since frictional force on an object equals the coefficient of friction multiplied by the normal force on the object (or F=µN).
The fabric is comfortable to where folks of any gender can wear this t-shirt and show off some sass. Got that sciency friend who won't take BS from other people? This shirt might be a perfect gift for them.

• 100% combed and ring-spun cotton (heather colors contain polyester)
• Fabric weight: 4.2 oz (142 g/m2)
• Pre-shrunk fabric
• Shoulder-to-shoulder taping
• Side-seamed