Abstract: Disclosed is a system for measuring a baseball or softball catcher's response, or “pop” time. The system includes a first sensor operable to detect a catcher catching a pitched ball, a second sensor operable to detect a baseman catching a ball thrown by the catcher, and a device with circuitry operable to calculate a pop time based on signals from the first and second sensors. Alternative embodiments allow measurement of time for a pitcher to deliver a pitch to the catcher, and other throwing and catching sequence metrics. Also disclosed are accompanying methods.

Abstract: A water/soap sprayer for attachment to a kitchen faucet includes a sprayer unit having a handle section and a nozzle section having an outflow nozzle end. A water flow conduit extends through the sprayer unit for transferring water through the sprayer unit and to the outflow nozzle end, the water flow conduit including a Venturi passage section for accelerating fluid flow therethrough. A detergent flow conduit extends through the sprayer unit and is connected in fluid connection with the Venturi passage section of the water flow conduit within the sprayer unit. A water flow control valve is mounted within the sprayer unit, the water flow control valve operative to restrict and permit water flow through the water flow tube, the water flow control valve in the water flow conduit positioned upstream from the Venturi passage section of the water flow conduit.