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
Flags of the Dutch royal family also responsible for heraldry of the royal family) and are granted by royal decree. Like their coats of arms, these flags are usually shared among siblings. The flags follow a similar pattern and, although not banners of arms, are heavily influenced by heraldry. Flags of those born into the royal family feature a Nassau-blue cross on an orange field, while the colours are reversed for those who marry into the family. Males have near-square flags while those of females are swallowtailed. Elements of an individual's family coat of arms are also incorporated into the flags. The flags are used to