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
Positions of the arms in ballet stretching the elbows and rotating the palms of the hands downwards. "Vaganova" or Russian school: Combinations of the basic arm positions are called: These are used mainly in the centre. "French school" and "Royal Academy of Dance": "Cecchetti method": Positions of the arms in ballet There are two basic positions of the arms in ballet. In one, the dancer keeps the fingers of both arms fully touching to form an oval shape, either almost touching the hips, or at navel level, or raised above the dancer's head. In the other, the arms are extended to the sides with the elbows