A crushed stone surface texture composition includes by weight approximately 45-65% crushed stones, 5-25% stone dust and 15-35% resin. The method for acquiring physical information uses a device for detecting a physical distribution, the device including a detecting part for detecting an electromagnetic wave and a unit signal generating part for generating a corresponding unit signal on the basis of the quantity of the detected electromagnetic wave. The gearbox has a high speed shaft connected to a generator. Each wall panel’s weight is supported, either directly or indirectly, by a floor surface located below the wall panel, so that the hook portions are used primarily to secure the wall panels against the retainer elements. A plurality of flotation devices and a plurality of pockets are attached to the outer side of the belt body.