Abstract: The stringed instrument-playing machine is an electromechanical device. The stringed instrument-playing machine is a musical instrument. The stringed instrument-playing machine is an automated structure. The stringed instrument-playing machine automatically announces the musical notes of a song. The stringed instrument-playing machine comprises a stringed instrument and a playing device. The stringed instrument-playing machine incorporates a stringed instrument and a playing device. The stringed instrument is a mechanical structure that generates audible sounds in the form of a plurality of notes. The playing device is an electromechanical device. The playing device is an electrically powered device. The playing device mechanically plays the stringed instrument. By playing the stringed instrument is meant that the playing device determines and causes the stringed instrument to generate: a) the notes that are played; b) the order that the notes are played; and, c) the length of time each note is played.

Abstract: The network enabled fire sensor and fire extinguishing system is a fire-fighting apparatus comprising a plurality of extinguisher modules. The plurality of extinguisher modules forms a wireless communication link between: a) the plurality of extinguisher modules, and, b) with an appropriate authority. When triggered by fire, the individual extinguisher module: c) releases a fire extinguishing chemical; and, d) transmits an alert message to both the appropriate authority and to the individual extinguisher modules remaining in the plurality of extinguisher modules containing the GPS coordinates of the transmitting individual extinguisher module. Each selected individual extinguisher module compares the GPS coordinates of the selected individual extinguisher mode to the GPS coordinates of the module alert message. If the span of the distance between the two coordinates is less than a previously determined span of distance, than the selected individual extinguisher module releases a fire retardant chemical.