Senior Maritime Pilot | Master Mariner | Master's degree Nautical Science | Forensic Medicine | Glassblower |
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2/x A magnetic compass points to the Compass North (Nc), not to magnetic north (Nm). Sometimes Nc = Nm, but on a steel ship that's not the case. Also, the magnetic north does not coincide with geographic north (true north - Nt) 
2/x Precise positioning on keel and side blocks is essential to avoid damage or capsizing. Keel blocks are positioned with extreme care. Ships have numerous underwater openings: echo sounders, speed logs, tank drain plugs, sea chests, valves, propeller shaft bearings, etc. 
2/x By the mid-16th century, European seafaring had changed radically. Voyages were now long and transoceanic. Navigation relied on:
2/x A barrel or "bbl" is the unit we use when trading crude oil. How big is a bbl, and how did we get there? A bbl is 159 liters or 42 US gallons. It originated in the mid-19th century in the oil fields of Pennsylvania, US. They had to transport the oil in something. 
2/x First of all... what's the difference between a tsunami and a rogue wave? A tsunami originates because of a geological event: underwater earthquakes, landslides, volcanic eruptions, or rarely meteor impact, displacing huge volumes of water. 
2/x Indeed, it doesn't happen very often that a tanker actually explodes. The last major explosion (not a fire, but an explosion) was the tanker SS Sansinena in 1976. This ship (246m) exploded in Los Angeles after discharging its cargo of 90,000 m³ Indonesian Light Crude. 
2/x Ships operate in seawater, a highly corrosive electrolyte (conductor) that accelerates rusting of steel hulls through electrochemical corrosion. It's like an unwanted battery effect. Different parts of a ship’s metal structure have slightly different electrical potentials.
2/x Let's start with an image we are familiar with: the traditional rudder like we see on photos from Titanic era ships. Titanic's rudder was massive at 78ft (23.7m) tall and weighing 101 tons. But it is what we call an UNBALANCED rudder. 
2/x The ship will receive a cargo plan, stowage plan or bay-plan with all the positions of the containers. Stowage plans are like blueprints for designing the placement of containers. Without proper stowage plans, ships risk instability, cargo losses, and delays 
2/x The flag of a ship refers to its flag state: the country whose flag it flies and which exercises jurisdiction over it under international law (UNCLOS). This determines regulatory oversight, safety standards, and crew conditions. 
2/x These Rules apply to all vessels upon the high seas and in all waters connected therewith navigable by seagoing vessels. BUT... each country still can make special rules for harbors, rivers, lakes or inland waterways connected with the high seas.
2/x They publish the ISO 6346 Freight containers — Coding, identification and marking Standard. So what is this BIC code? 
2/x Cornelius van Bijnkershoek, the Dutch jurist who formalized the cannon shot rule in his 1702 book "De Dominio Maris" based this on the principle that: A state’s sovereignty over the sea extends only as far as it can effectively control and defend it. 
2/x Originally launched in Germany in 2002 as a container ship named Maersk Waterford, she was later converted into a livestock carrier in 2015 and finally renamed Gulf Livestock 1 in 2019. 
2/x Dali was propelled by a single, slow-speed, 55,626-hp (41,480-kW) diesel engine. The engine was directly connected to a single, right-turning propeller. The engine was also fitted with alarms and automatic shutdown features to prevent damage to the ... 
2/x The NSR will be used by 2 types of traffic: Destination shipping and transit. The former, for example, entails oil extraction in the Barents Sea. Ships will load there and then transport the cargo via the NSR to Asia.
2/x While his achievement ranks as one of the key milestones in the exploration of the Arctic, the discovery of a passage for commercial shipping, the original motive for finding the NWP, was still out of reach.
