In the new movie, "Mechanic: Resurrection" with Jason Statham, the end of the movie involves a concept of a "self-contained anchor ....?

2016-11-29T21:32:58Z

In the new movie, "Mechanic: Resurrection" with Jason Statham, the end of the movie involves a concept of a "self-contained anchor compartment" on a ship. I'd be willing to bet that they do have such anchor compartments on a ship. Why are they necessary?

?2016-11-29T23:23:14Z

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