Top 10 sailing factsSailing quiz
What sound can be heard when approaching an iceberg?
A fizz. When a piece of iceberg ice melts, it makes a fizzing sound called "Bergie Seltzer". This sound is made when the water-ice interface reaches compressed air bubbles trapped in the ice. As this happens, each bubble bursts, making a 'popping' sound. The bubbles contain air trapped in snow layers very early in the history of the ice, that eventually got buried to a given depth (up to several kilometers) and pressurized as it transformed into firn then to glacial ice.
The Santísima Trinidad (pictured) bore the most guns of any ship of the line outfitted in the Age of Sail. How many guns were there?
140. Santísima Trinidad was one of few four-deckers ever built. The weight of the additional guns, so high above her waterline, made her sail poorly, leading to her nickname, El Ponderoso. She sank after the Battle of Trafalgar, where her great size made her a first target for the British fleet, and she came under concentrated attack by several ships.
Historically, the nautical mile was defined as ...
One minute of latitude. In 1929, the international nautical mile was defined by the First International Extraordinary Hydrographic Conference in Monaco as precisely 1,852 meters. The United States nautical mile was defined as 6,080.20 feet (1,853.24 m) based in the Mendenhall Order foot of 1893. It was abandoned in favour of the international nautical mile in 1954. The Imperial nautical mile, often called an Admiralty mile, was defined by its relation to the Admiralty knot, and was abandoned in 1970.
Who was the first European navigator to reach Australia?
Willem Janszoon. Janszoon reached the Gulf of Carpentaira (north of Australia) and made a landfall in 1606. However, he found the land swampy and the people inhospitable. He called the land he had discovered “Nieu Zeland” after the Dutch province of Zeeland, but the name was not adopted and was later used by Abel Tasman for New Zealand.
What is the strongest sea current?
Antarctic Circumpolar Current. This cold sea current circulates the globe in the far south. It creates a zone of very strong winds and storms, by which sailing Cape Horn is such a challenge for sailors. Depth of current exceeds 3000 m.
What can be measured with opisometer?
The lengths of arbitrary curved lines. An opisometer, also called a curvimeter, meilograph, or map measurer, is an instrument for measuring the lengths of arbitrary curved lines. A simple opisometer consists of a toothed wheel of known circumference on a handle. The wheel is placed in contact with the curved line to be measured and run along its length. The instrument is most commonly used to measure the lengths of roads, rivers and other line features on maps.
Typically, how many artillery decks were in the sailing ships of the line?
Two. The first English two-decker was built in 1514. In the middle of the 18th century, larger three- or even four-deckers with 98 to 140 guns were built, that served as admirals' command ships. Those have however proven highly unstable and difficult to manouvre, so large two-deckers were more common as the most practical ones.
What was the name of Blackbeard's ship, one of the most dangerous pirates of his time?
Revenge of Queen Anne. Queen Anne's Revenge was a fully rigged ship, most famously used as a flagship by the pirate Blackbeard (Edward Teach). Although the date and place of the ship's construction are unclear, it is believed she was built in Bristol in 1710 and named Concord. Blackbeard used the ship for less than a year, but captured numerous prizes using her as his flagship.
What was the largest type of Viking ship?
Draken Harald Hårfagre is the largest Viking ship built in modern times. It is a ship that combines ocean-crossing sailing capabilities with a warship's use of oars. The longship is 35 metres (115 ft) long with a beam of approximately 8 metres (26 ft) and a displacement of about 95 metric tons. It is equipped with 50 oars.