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
History of the flags of Romania it outside the country's borders (art. 14) and during demonstrations by socialist organizations (art. 15), the conditions for lowering it to half-staff (art. 16, 17 and 18, with art. 20 describing exceptions to the rule), the conditions and manner for draping caskets with the flag (art. 19), as well as the place of the Romanian flag in case it flew besides one or more foreign flags (art. 21). Starting on 17 December 1989, during the revolution at Timișoara, the coat of arms of the Romanian Socialist Republic began to be removed from flags, being viewed as a symbol of Nicolae