wyświetlenia
7:48
Why Do Ships Have Two Balls?
16:26
Correction of D & E by Soft Iron Sphere
1:42
Soft Iron Spheres | Magnetic Compass | Merchant Navy #earth #navy #shiplife #magnetic
8:42
Magnetic Compass Correction Explained | Flinders Bar, Soft Iron Spheres & Spare Iron | DGS MMD Exam
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Coefficient D & Soft Iron Spheres
4:10
Compass 3
17:50
What should you know about 9 Rods
1:05
Compass 1