signaalitöö
Signaalitöö refers to the practice of sending and receiving signals. These signals can take various forms, including visual cues like flags or lights, auditory signals such as whistles or horns, or even electronic transmissions. The primary purpose of signaalitöö is to convey information quickly and efficiently over distances, often in situations where direct communication is difficult or impossible.
Historically, signaalitöö played a crucial role in maritime navigation and military operations. Sailors used flags to
Modern signaalitöö encompasses a wide range of applications. In transportation, traffic lights are a form of