Telegraphy the sense of a system that can transmit arbitrary messages over arbitrary distances. Lines of signalling relay stations can send messages to any required distance, but all these systems are limited to one extent or another in the range of messages that they can send. A system like flag semaphore, with an alphabetic code, can certainly send any given message, but the system is designed for short-range communication between two persons. An engine order telegraph, used to send instructions from the bridge of a ship to the engine room, fails to meet both criteria; it has a limited distance and
Coat of arms of Niš Coat of arms of Niš Coat of Arms of Niš was designed by Dragomir Acović. Coat of Arms was adopted in 1996, but officially in 2000. It has three versions: big, middle and small coat of arms. Bigger coat of arms has two supporters, Stevan Sinđelić (leader of first Serbian Uprising) and Constantine the Great (Roman emperor born in Niš) holding two flags, Serbian flag with cross and four stylised letters "S" (same flag is used by Serbian Orthodox Church) and purple flag with laurel wreath and two-headed eagle. Underneath them is compartment represented by plains and motto with name