Abstract: A device for determining a lag winner in billiards and method of use are provided. The method disclosed includes placing a lag winner determination device such that the device is alongside a side rail of the billiards table and closer to a head rail of the billiards table than billiard balls used in the lag. The method further includes activating an illumination source within the lag winner determination device and moving the illumination source until it provides incident light to one of the billiard balls used in the lag. The method further includes determining the winner as a player that used the billiard ball that received the incident light from the illumination source.

Abstract: A device for determining a lag winner in billiards and method of use are provided. The method disclosed includes placing a lag winner determination device such that the device is alongside a side rail of the billiards table and closer to a head rail of the billiards table than billiard balls used in the lag. The method further includes activating an illumination source within the lag winner determination device and moving the illumination source until it provides incident light to one of the billiard balls used in the lag. The method further includes determining the winner as a player that used the billiard ball that received the incident light from the illumination source.

Abstract: An electron gun mounted on top of a vacuum chamber, the gun emitting an electron beam vertically downward towards a substrate placed upon a three axis movable stage, creating a molten pool on the substrate, which is translated along an automatically generated, pre-programmed path in a plane normal to the beam by an automated numerical controller. A wire feeder and spool surround the beam in an annular ring, providing continuous material feed and constant orientation of the wire to the beam and pool, producing a high rate of material deposition and near net shape geometry. Integrated machining and inspection heads sequentially machine each layer to net shape then non-destructively inspect each layer. A heat and microstructure management system employs chilled oil or liquid metal coolant circulating through a vat surrounding the movable stage, supported by an actuator that gradually submerges the substrate as the deposited layers grow, the circulating coolant removing heat and machine chips.