Compass and needle floating on water pointing north. The magnetic compass is an instrument used to determine geographic direction. A thin of magnetic material is mounted on a card marked with points of direction and is free to rotate on a pivot. The needle aligns to the local component of the Earth's magnetic field,resting north to south | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Winters, Charles D. |
Bildgröße: | 3378 px × 2235 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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