A system for providing player training including a grid of individually powered, processor controlled and communicable lighting elements and sensors which are embedded within a playing surface associated with the event, the lighting elements interfacing with at least one of a player worn sensor and/or a remote processor device for providing a visual illustration of any number of parameters associated with an actual player performance, including real time motion progressions of the player which are represented on the field surface and/or recreated on a processor driven screen which films or otherwise tracks the event. The simulated progressions can further replicate the desired motions of the positional player's intended motions or those of an opposing positional player and in lieu of the actual player being on the playing surface.

The illuminants arrangement includes a plurality of LED-based light sources that are encased in a water-tight manner by way of one or more encasings, wherein the light sources are, at least in a group-wise manner, operationally interconnected by way of electrical connection leads. The connection leads include voltage supply leads. The illuminants arrangement as a protection of the one or more encasings and the light sources from mechanical damage includes at least one protective overlay for being placed onto the one or more encasings, so that light emitted by the light sources can be emitted through the at least one protective overlay. The illuminants arrangement can include a heating device. Each of the light sources can be suitable for emitting light of a variable color, wherein the color of each of the light sources can be individually selected by way of a control unit.

The illuminants arrangement includes a plurality of LED-based light sources that are encased in a water-tight manner by way of one or more encasings, wherein the light sources are, at least in a group-wise manner, operationally interconnected by way of electrical connection leads. The connection leads include voltage supply leads. The illuminants arrangement as a protection of the one or more encasings and the light sources from mechanical damage includes at least one protective overlay for being placed onto the one or more encasings, so that light emitted by the light sources can be emitted through the at least one protective overlay. The illuminants arrangement can include a heating device. Each of the light sources can be suitable for emitting light of a variable color, wherein the color of each of the light sources can be individually selected by way of a control unit.

A modular assembled artificial skating rink includes a refrigerating system, a plurality of liquid-supply main pipes and air-return main pipes in the same pipe line as the liquid-supply main pipes. The liquid-supply main pipes communicate with a liquid-supply header pipe. The air-return main pipes communicate with an air-return header pipe. The liquid-supply header pipe communicates with a refrigerant-fluid outlet of the refrigerating system through at least a liquid-supply standpipe. The air-return header pipe communicates with an air-recovery end of the refrigerating system through at least an air-return standpipe. Each liquid-supply main pipe is sheathed in a corresponding air-return main pipe, forming a plurality of groups of sleeve main pipes. The artificial skating rink is divided into different modular regions. Each of the regions has sleeve manifolds and ice-making pipes. Each liquid-supply main pipe has a refrigerant-fluid control valve bank, and each air-return main pipe has an air control valve bank.

A modular assembled artificial skating rink includes a refrigerating system, a plurality of liquid-supply main pipes and air-return main pipes in the same pipe line as the liquid-supply main pipes. The liquid-supply main pipes communicate with a liquid-supply header pipe. The air-return main pipes communicate with an air-return header pipe. The liquid-supply header pipe communicates with a refrigerant-fluid outlet of the refrigerating system through at least a liquid-supply standpipe. The air-return header pipe communicates with an air-recovery end of the refrigerating system through at least an air-return standpipe. Each liquid-supply main pipe is sheathed in a corresponding air-return main pipe, forming a plurality of groups of sleeve main pipes. The artificial skating rink is divided into different modular regions. Each of the regions has sleeve manifolds and ice-making pipes. Each liquid-supply main pipe has a refrigerant-fluid control valve bank, and each air-return main pipe has an air control valve bank.

A method for handling insulating materials used for storing snow, wherein the insulating materials covering a heap of snow stored through the summer are taken off the heap of snow before the snow in the heap of snow is transferred to a selected use. In the method, the insulating materials used for covering the heap of snow stored through the summer are transferred to such another use, in which the insulating materials have at least one function other than mere storage of the insulating materials.

A method for handling insulating materials used for storing snow, wherein the insulating materials covering a heap of snow stored through the summer are taken off the heap of snow before the snow in the heap of snow is transferred to a selected use. In the method, the insulating materials used for covering the heap of snow stored through the summer are transferred to such another use, in which the insulating materials have at least one function other than mere storage of the insulating materials.

A method of providing a snow storage with heat-insulation, the method including covering a snow pile made at a snow storage site with heat-insulating materials of which at least some are insulation boards. In the method, the insulation of the snow pile is carried out by using insulation board mats which include several insulation boards, or insulation board groups consisting of several insulation boards attached against each other, side by side and/or one after another, and which are pivotably joined together, alternately at the upper corners and the lower corners of their opposite transversal end edges, the resulting continuous insulation board mat composed of several insulation boards one after another being foldable into an accordion-like insulation board bundle and re-openable into a continuous insulation board mat. The invention also relates to equipment for providing a snow storage with heat-insulation.

A method of providing a snow storage with heat-insulation, the method including covering a snow pile made at a snow storage site with heat-insulating materials of which at least some are insulation boards. In the method, the insulation of the snow pile is carried out by using insulation board mats which include several insulation boards, or insulation board groups consisting of several insulation boards attached against each other, side by side and/or one after another, and which are pivotably joined together, alternately at the upper corners and the lower corners of their opposite transversal end edges, the resulting continuous insulation board mat composed of several insulation boards one after another being foldable into an accordion-like insulation board bundle and re-openable into a continuous insulation board mat. The invention also relates to equipment for providing a snow storage with heat-insulation.

A kit for playing a game on ice. The kit includes two or more game discs and a set of instructions for playing the game. The game discs are shaped to enable their passage over imperfections in the ice. Specifically, the game discs are tapered, such as with beveling but not limited to that. The taper reduces the chance that the disc will be stopped or diverted as it travels over the ice. The game requires the formation of two holes spaced from one another in the hole without extending through the ice. The game is played by sliding the discs toward the holes and scoring based on disc entry into the hole as well as closest proximity to the hole.