Abstract: Apparatus and methods for constructing ice structures are provided. An apparatus for construction of a structure from ice may include multiple tubes. Each of the tubes may be disposed in an upright position. Each of the tubes may have a constant inner diameter and/or a closed bottom. The tubes may be disposed within a frame for transport of the tubes.

Abstract: Apparatus and methods for constructing ice structures are provided. An apparatus for construction of a structure from ice may include multiple tubes. Each of the tubes may be disposed in an upright position. Each of the tubes may have a constant inner diameter and/or a closed bottom. The tubes may be disposed within a frame for transport of the tubes.

Abstract: A golf club putter including a putter head with a curved bottom surface, a front face with a full-face cavity, an adapter molded into the full-face cavity, and a back surface with a weight-reducing cavity formed therein. The volumes of the full-face and weight reducing cavities are substantially equal to keep the putter head relatively balanced. The adapter is made of a polyurethane material with a hardness of at least Shore A 90 durometer. The inside surface of the adapter is mechanically or adhesively bonded to the inside surface of the full-face cavity thereby enabling the entire energy of impact when a ball is struck to be transmitted throughout the putter head, thereby providing a softer felling to the user. The front and back cavities reduce the mass along the central, transverse axis of the putter head, thereby decreasing the torque about the shaft, which enables the user to more easily maintain the front face in a perpendicularly aligned position during the swing.

Abstract: An improved multi-bit error correction system. The inventive error correcting system performs a fast error correction operation on individual bits within multi-bit modules. In a specific implementation, the invention uses Hamming codes and divides an n times m bit data word into m modules, with each module having n bits. Next, the ith bits of each module are combined to form a set of parity bits. Syndrome bits are generated from the parity bits and used to locate errors in the bits and provide an indication of same. Finally, errors in the bits are corrected in a conventional manner to provide corrected data bits.