Everyone wants a butt that’s so tight you can bounce a quarter off it, right? Ok, maybe not. But guess what – you probably already have one!
According to a physics professor from Cal State University, Long Beach, the average person most likely has a butt that you can bounce a quarter off. And it’s not because they’ve got muscular butts, but because butt skin is naturally bouncy.
It’s all based on something called the “coefficient of restitution,” or COR, which measures how well an object will bounce off a surface. It’s measured on a scale of 0 to 1. If something gets a “1,” it means an object will bounce off it perfectly. And thanks to the tightness of the skin on our butts, the average butt has a COR of 0.82. That means a quarter SHOULD bounce off a bare butt nicely.
It also means our butts are slightly less bouncy than a ping pong ball, but have more bounce than a basketball.
So can we stop doing lunges now?