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Transportation of oil by water was the indirect result of the first oil well. Mineral oil had been known to exist below the surface of the earth for quite some time. There are indications that the Chinese obtained small quantities from shallow mines several thousand years From the very  time a man falls over, till he is recovered back on board, every second counts. Every wrong action taken or an inappropriate decision you make, the results can be catastrophic, so as a prudent navigator it’s more than necessary to know … Continue Not all oil pollution is caused by tankers. However, the huge volume of crude oil transported by sea has created a major problem in disposing of di*ty ballast and tank washings without harming the marine environment or damaging coastal … Continue Reading Purpose Ship’s stability calculations not only rely on the ship’s geometry but also on the knowledge of where the ship’s centre of gravity (G) is positioned. Although the distance of G from the keel can be ascertained for various conditions that the ship may be in, it An instrument for measuring the speed of a ship through water is called a ship's, or maritime, log. The same word is also applied to the daily record of a ship, though it is more properly termed a logbook. History In the years of sailing ships, the Dutchman's log was. SHIP’S MAGNETIC COMPAS* – DRY AND WET COMPAS* WITH THEIR CARE, MAINTENANCE AND BUBBLE REMOVAL. As per Chapter V of SOLAS 74, as amended, a magnetic compas* is a compulsory part of the shipborne navigational equipment. This is in addition to the gyro compas* & suitably placed repeaters on the ship. This is so primarily because of the reliable dependence one can place Gyro Compas* is a navigational compas* containing gyroscope motor that registers the direction of true north along the surface of the earth and it does not depend on magnetism. or A compas* with a motorized gyroscope whose angular momemtum interacts with the force produced by