According to some implementations an ice rink is provided that includes a plurality of coolant tubes that are configured to transport a coolant to cool ice located above the coolant tubes. The ice has a top surface on which ice skating or other activities may occur. An elongate light-diffusing optical fiber is positioned below the top surface of the ice and is configured to transmit light to the top surface of the ice.

According to some implementations an ice rink is provided that includes a plurality of coolant tubes that are configured to transport a coolant to cool ice located above the coolant tubes. The ice has a top surface on which ice skating or other activities may occur. An elongate light-diffusing optical fiber is positioned below the top surface of the ice and is configured to transmit light to the top surface of the ice.

According to some implementations an ice rink is provided that includes a plurality of coolant tubes that are configured to transport a coolant to cool ice located above the coolant tubes. The ice has a top surface on which ice skating or other activities may occur. An elongate light-diffusing optical fiber is positioned below the top surface of the ice and is configured to transmit light to the top surface of the ice.

According to some implementations an ice rink is provided that includes a plurality of coolant tubes that are configured to transport a coolant to cool ice located above the coolant tubes. The ice has a top surface on which ice skating or other activities may occur. An elongate light-diffusing optical fiber is positioned below the top surface of the ice and is configured to transmit light to the top surface of the ice.

Rate of deceleration is an important factor in determining the severity of injuries, such as head and neck injuries, possibly sustained when participants collide with a wall assembly while playing, for example, ice hockey. The described wall assemblies each include a support assembly and a movable wall assembly supported by and movable with respect to the support assembly. Telescoping parts of the movable wall assembly enable deflection of the movable wall assembly to complex angles with respect to the support assembly. In addition, movable wall assemblies can be coupled such that impact on one wall assembly can cause deflection of an adjacent wall assembly. Covers, shields, and spacers can be positioned to decrease gap formation during deflection of the movable wall assembly to reduce the risk of pinch points.

A wave generating apparatus mobile application controller and method are provided in which a mobile controller actuates a plurality of wave generating chambers in sequence using a delay between the actuation of each chamber to produce a rideable wave in a pool. The mobile application controller allows the user to select the exact type of wave to be produced by the wave generator apparatus by selecting the size, shape, and pattern of the wave. The application also allows the user to use a camera to photograph or record herself or someone else, even while riding a wave.

A digital video ramp assembly incorporates process-formed structural LED tiles with modular components that join in a system of scalable structural LED tiles forming a complete LED display structure with integrated LED embedded tiles with interlocking and inter-trans-positioning features sometimes requiring additional structural framing.

A digital video ramp assembly incorporates process-formed structural LED tiles with modular components that join in a system of scalable structural LED tiles forming a complete LED display structure with integrated LED embedded tiles with interlocking and inter-trans-positioning features sometimes requiring additional structural framing.