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The hand signal "OK". Diver communications are the methods used by divers to communicate with each other or with surface members of the dive team. In professional diving, diver communication is usually between a single working diver and the diving supervisor at the surface control point. This is considered important both for managing the diving ...
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 NATO usage generally differs from the international meanings, and therefore warships will fly the Code/answer flag above the signal to indicate it should be read using the international meaning. During the Allied occupations of Axis countries after World War II, use and display of those nations' national flags was banned.
In more recent history, it is sometimes associated with the racist theory of white power, which started as a prank meme on 4chan. In Japanese culture a way of requesting money or payment uses a similar hand sign, with the palm facing upwards and the three extended fingers level. Abhayamudra is a Hindu mudra or gesture of reassurance and safety.
A blue and white flag (the flag for the letter P) hoisted at the foretrucks of ships about to sail. Formerly a white ship on a blue ground, but later a white square on a blue ground. blue water 1. That part of the ocean lying more than a few hundred nautical mile s from shore, and thus beyond the outer boundary of green water. 2.
A demonstration of the sign of the horns. The sign of the horns is a hand gesture with a variety of meanings and uses in various cultures. It is formed by extending the index and little fingers while holding the middle and ring fingers down with the thumb.
A safe water mark, as defined by the International Association of Lighthouse Authorities, is a sea mark used in maritime pilotage to indicate the end of a channel. They usually imply that open, deep and safe water lies ahead. They are also used to indicate the start and end of a buoyed section of a continuous narrow channel; and a series of ...
An early wooden drogue. A sea anchor (also known as a parachute anchor, drift anchor, drift sock, para-anchor or boat brake) is a device that is streamed from a boat in heavy weather. Its purpose is to stabilize the vessel and to limit progress through the water. Rather than tethering the boat to the seabed with a conventional anchor, a sea ...