Abstract: A computer-enabled system and method that collects and processes various data from mobile devices possessed by on-demand cargo delivery transportation drivers, along with other possible external data sources, and subsequently recognizes, classifies, stores, and delivers cargo delivery-related activity information of individual or multiple drivers to various consumers of the system, while also iteratively improving the system and method's cargo delivery activity classification accuracy over time.

Abstract: A modular bolt action for a bolt action firearm is provided. The bolt action includes a receiver and a bolt assembly, the receiver being reconfigurable in a variety of different ways to accommodate a variety of different bolt assemblies. In this way, the modular bolt action can be reconfigured from a left-handed action to a right-handed action and/or from a two-lug action to a three-lug action. Fabrication of the modular bolt action includes adjusting the receiver to accommodate a desired bolt assembly and engaging such bolt assembly with the receiver.

Abstract: A computer-enabled system and method that collects and processes various data from mobile devices possessed by on-demand (“ride-hailing”) transportation drivers, along with other possible external data sources, and subsequently recognizes, classifies, stores, and delivers ride-hailing-related activity information of individual or multiple drivers to various consumers of the system, while also iteratively improving the system and method's ride-hailing activity classification accuracy over time.

Abstract: An analog ballistic system calculator for long range shooting is constructed of a pair of rugged, waterproof rotatable transparent discs superimposed over a base member on one side and a single transparent rotatable disc on the opposite side of the base. The hand held calculator device provides a wind speed and direction and air temperature adjusted calculator device for long distance rifles.

Abstract: An analog ballistic system calculator for long range shooting is constructed of a pair of rugged, waterproof rotatable transparent discs superimposed over a base member on one side and a single transparent rotatable disc on the opposite side of the base. The hand held calculator device provides a wind speed and direction and air temperature adjusted calculator device for long distance rifles.