Abstract: A liquid golf ball center has a spherical polymeric shell which contains a liquid mixture of water and a water soluble poly(ethylene oxide) polymer. The liquid mixture may also contain a substance for increasing the weight of the golf ball center.

Abstract: Surfactants for conventional flexible polyurethane foam may be improved by the addition of a minor amount of an organic acid salt.

Abstract: The exercise device of the present invention is comprised of a seat which supports the user in a generally upright position where the arms and legs are free to move in a manner similar to that encountered while swimming. The seat is supported above a base having resistance devices located at one of its ends which impart resistance against the movement of the legs when they are moved in an oscillatory motion about the hips. Located on the other end of the base is an upright post which supports resistance devices above and ahead of the user that impart resistance to the movement of the arms when they are moved in a rotary motion about the shoulders. In a preferred embodiment of the invention the resistance devices comprise rotatably mounted reels which have cables wound onto them. Springs resist rotation of the reels when the cables are unwound from them due to their being pulled, and rewinds the cables back onto the reels when the cables are released.