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  2. Ballast - Wikipedia

    en.wikipedia.org/wiki/Ballast

    Ballast is dense material used as a weight to provide stability to a vehicle or structure. Ballast, other than cargo , may be placed in a vehicle, often a ship or the gondola of a balloon or airship , to provide stability .

  3. Ship ballast - Wikipedia

    en.wikipedia.org/wiki/Ship_ballast

    If a cargo vessel (such as a tanker, bulk carrier or container ship) wishes to travel empty or partially empty to collect a cargo, it must travel "in ballast". This keeps the vessel in trim and keeps the propeller and rudder submerged. Typically, being "in ballast" will mean flooding ballast tanks with sea water.

  4. Ballast tank - Wikipedia

    en.wikipedia.org/wiki/Ballast_tank

    Cross section of a vessel with a single ballast tank at the bottom. A ballast tank is a compartment within a boat, ship or other floating structure that holds water, which is used as ballast to provide hydrostatic stability for a vessel, to reduce or control buoyancy, as in a submarine, to correct trim or list, to provide a more even load distribution along the hull to reduce structural ...

  5. Corrosion in ballast tanks - Wikipedia

    en.wikipedia.org/wiki/Corrosion_in_ballast_tanks

    Temperatures in this area are much lower due to the cooling of the sea. If this extremely cathodic region is placed close to an anodic source (e.g. a corroding ballast pipe), cathodic blistering may occur especially where the epoxy coating is relatively new. Mud retained in ballast water can lead to microbial corrosion. [4]

  6. Ballast water discharge and the environment - Wikipedia

    en.wikipedia.org/wiki/Ballast_water_discharge...

    The Convention will require all ships to implement a "Ballast water management plan" including a ballast water record book and carrying out ballast water management procedures to a given standard. Guidelines are given for additional measures then the guidelines. The goals of the convention are to minimise damage to the environment by:

  7. Science fair - Wikipedia

    en.wikipedia.org/wiki/Science_fair

    A science fair or engineering fair is an event hosted by a school that offers students the opportunity to experience the practices of science and engineering for themselves. In the United States, the Next Generation Science Standards makes experiencing the practices of science and engineering one of the three pillars of science education.

  8. S&P; Global (SPGI) Q4 2024 Earnings Call Transcript - AOL

    www.aol.com/p-global-spgi-q4-2024-181513713.html

    Image source: The Motley Fool. S&P Global (NYSE: SPGI) Q4 2024 Earnings Call Feb 11, 2025, 8:30 a.m. ET. Contents: Prepared Remarks. Questions and Answers. Call ...

  9. Ballast Water Management Convention - Wikipedia

    en.wikipedia.org/wiki/Ballast_Water_Management...

    The International Convention for the Control and Management of Ships' Ballast Water and Sediments (Ballast Water Management Convention or BWM Convention) is a 2004 international maritime treaty which requires signatory flag states to ensure that ships flagged by them comply with standards and procedures for the management and control of ships' ballast water and sediments. [2]