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The International Code of Signals (INTERCO) is an international system of signals and codes for use by vessels to communicate important messages regarding safety of navigation and related matters. Signals can be sent by flaghoist, signal lamp ("blinker"), flag semaphore, radiotelegraphy, and radiotelephony. The International Code is the most ...
A US Navy crewman signals the letter 'U' using flag semaphore during an underway replenishment exercise (2005). Flag semaphore (from the Ancient Greek σῆμα (sêma) 'sign' and - φέρω (-phero) '-bearer' [1]) is a semaphore system conveying information at a distance by means of visual signals with hand-held flags, rods, disks, paddles, or occasionally bare or gloved hands.
The three sides of the flag not attached to the pole are decorated with fringes of golden thread (5–7 cm long) and tassels of the same material (10–12 cm long) hang from the corners of the fly. The flag is attached to the pole by an antioxidant metal rod 70 cm long. The pole, of brown wood, is 240 cm high and 3.5 cm in diameter.
The first signals employed on an American railroad were a system of flags used on the Newcastle and Frenchtown Turnpike and Rail Road in the 1830s. The railroad then developed a more effective system consisting of wooden balls, painted red, white or black, and hoisted up or down a pole on a rope-and-pulley system.
v. t. e. The handkerchief code (also known as the hanky code, the bandana code, and flagging) [1] is a system of color-coded cloth handkerchief or bandanas for non-verbally communicating one's interests in sexual activities and fetishes. The color of the handkerchief identifies a particular activity, and the pocket it is worn in (left or right ...
Most sign languages combine hand shapes, movement, and position in relation to the rest of body, as well as additional body language and facial expression. As with other hand signs, the OK gesture may be combined with other elements to convey numerous meanings across multiple sign languages.
The railway signalling system used across the majority of the United Kingdom rail network uses lineside signals to control the movement and speed of trains. The modern-day system mostly uses two, three, and four aspect colour-light signals using track circuit – or axle counter – block signalling. [1][2] It is a development of the original ...
t. e. National symbols of Poland (Polish: Polskie symbole narodowe) are the tangible and intangible symbols, emblems or images that are found in Poland to represent the country's unique customs, traditions, cultural life, and its over 1000-year history. These symbols serve as the nation's portrayal of patriotism and dedication to their national ...