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Why Do Ships Have Two Balls?
Parts of a magnetic compass - Video
Magnetic Compass Turns | Timed Turns
How to adjust Magnetic Compass
Soft Iron Spheres | Magnetic Compass | Merchant Navy #earth #navy #shiplife #magnetic
Ship's magnetism - Magnetic Compass
The Remote Indicating Compass (Slaved Gyro Compass)
Parts of the ship's Magnetic Compass - Bridge Equipment