dude, i dont know the physics behind it, but it works. it just does... havent u seen south park where kyle's parents wanted to circumsize his brother, so kyle thought it was to chop of the wang completely, so he ran away with his brother? but his parents tell them later that its just cutting of the fore skin, and one of the benefits is a bigger cock, and suddenly everyone wanted a circumcision? south park never lies, dude!