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  2. Light characteristic - Wikipedia

    en.wikipedia.org/wiki/Light_characteristic

    An example of a complete light characteristic is "Gp Oc(3) W 10s 15m 10M". This indicates that the light is a group occulting light in which a group of three eclipses repeat every 10 seconds; the light is white; the light is 15 metres above the chart datum and the nominal range is 10 nautical miles.

  3. Safe water mark - Wikipedia

    en.wikipedia.org/wiki/Safe_water_mark

    They are also known as fairway buoys and clear water buoys. They are recognisable by their red-and-white vertical stripes and commonly bear a top sign in shape of a red ball. They either flash Morse code "A" (di-dah), or one long flash, occulting (more light than dark) or isophase (equal light and dark) every 10 seconds (L Fl 10s). [2]

  4. Cardinal mark - Wikipedia

    en.wikipedia.org/wiki/Cardinal_mark

    Diagram of cardinal marks as seen during the day, with their light patterns. The lights shown here are configured as "Quick". A cardinal mark is a sea mark (a buoy or other floating or fixed structure) commonly used in maritime pilotage to indicate the position of a hazard and the direction of safe water.

  5. How do boaters avoid hazards? What to know about markers ...

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  6. Isolated danger mark - Wikipedia

    en.wikipedia.org/wiki/Isolated_danger_mark

    Examples of Isolated Danger Marks. An Isolated Danger Mark, as defined by the International Association of Lighthouse Authorities, is a sea mark used in maritime pilotage to indicate a hazard to shipping such as a partially submerged rock.

  7. Sea mark - Wikipedia

    en.wikipedia.org/wiki/Sea_mark

    The International Association of Lighthouse Authorities defines one system of marks specifying the shapes, colours and characteristic lights of buoys depending on their purpose, the IALA Maritime Buoyage System. [2] For historical reasons, there are two regions of lateral marks in use: IALA Region B in the Americas, the Philippines, South Korea ...

  8. New York mother sent her kids over Niagara Falls first in ...

    www.aol.com/york-mother-sent-her-kids-060514743.html

    The New York mom who intentionally jumped to her death into the Niagara Falls with her young children sent her kids over the railing first, according to a report. ... Chianti Means, 33, State ...

  9. Lifebuoy - Wikipedia

    en.wikipedia.org/wiki/Lifebuoy

    Lifebuoy with emergency light on a cruise ship A lifebuoy floating on water. A lifebuoy or life ring, among many other names (see § Other names), is a life-saving buoy designed to be thrown to a person in water to provide buoyancy and prevent drowning. [1] Some modern lifebuoys are fitted with one or more seawater-activated lights to aid ...