while a negative metacentric height means that the ship is unstable. The amount and distribution of ballast on a ship is dependent on several factors, such as the design, dimensions, and hull ...

Ballast is weight placed low in ships to lower their centre of gravity, which increases stability. Insufficiently ballasted boats tend to tip or heel excessively in high winds. Too much heel may ...

Since management of ballast water discharge becomes mandatory, a ship is obliged to exchange ballast water in open ocean and as far as Put to the Test Finding a superior manner to exchange ballast ...

In 2022, the EPA was asked to better regulate water discharges from ships. The agency punted, and now California has a ...

Before arriving in North America, the species is believed to have invaded South American rivers through ballast water—the ...

Many of the cobblestones were originally ballast in sailing ships that called on Virginia’s holy city and are likely to have been cut and installed by the Black unfree, an untold number of whom ...

Hydroplanes are located both at the stern and bow of the ship. When it's time for the sub to surface, air — because it's lighter than water — is pumped into the ballast tanks, replacing the ...

The golden mussel is an invasive species that has used the ballast water of ships to spread to many places, and wreak havoc ... | Earth And The Environment ...

The City and County of Honolulu isn’t being a good steward of historic stone sidewalks and street curbs, according to a ...

The US Navy and Scripps Institution of Oceanography's unique FLoating Instrument Platform (FLIP) has been saved at the last ...

Notably missing, despite this being the Bronze Age, are nails, screws or any kind of metal. How could these ships, bearing people, ideas and goods (including copper, fabrics and semi-precious stones), ...