compass needle in a sentence

Examples

1. :: Magnetic declination is a favorite of mine : the variation of the compass needle from true north.
2. It is a given that the north pole of a compass needle indicates the direction of magnetic North.
3. Compass needles are often weighted during manufacture to compensate for magnetic dip, so that they will balance roughly horizontally.
4. When that rock was forming, magnetic grains in the sediment took on the orientation of Earth's field, like tiny compass needles.
5. More importantly, it included Norman's discovery of magnetic dip, the incline at an angle from the horizon by a compass needle.
6. Exposure to strong magnets, or magnetic interference can sometimes cause the magnetic poles of the compass needle to differ or even reverse.
7. At one point, Michell attempted to measure the radiation pressure of light by focusing sunlight onto one side of a compass needle.
8. If the Earth's field were exactly dipolar, the north pole of a magnetic compass needle would point directly at the North Geomagnetic Pole.
9. Therefore, it is plausible that since the time that Shen Kuo began writing his book, the compass needle was being used for navigation.
10. If the needle tilts to one direction, tilt the compass slightly and gently to the opposing direction until the compass needle is horizontal, lengthwise.