Definition of Magnetic needle. Meaning of Magnetic needle. Synonyms of Magnetic needle

- consists of a magnetized needle or other element, such as a comp**** card or comp**** rose, which can pivot to align itself with magnetic north. Other methods...
- Magnetic north is the direction that the north end of a magnetized comp**** needle points, which corresponds to the direction of the Earth's magnetic field...
- description of how geomancers magnetized a needle by rubbing its tip with lodestone and hung the magnetic needle with one single strain of silk with a bit...
- Kuo was the first person to write—in the Dream Pool Essays—of the magnetic needle comp**** and that it improved the accuracy of navigation by employing...
- The north pole of a magnetic comp**** needle points roughly north, toward the North Magnetic Pole. However, because a magnetic pole is attracted to its...
- observation, first noted by Hans Christian Ørsted in 1820, that a magnetic comp****'s needle deflects when near a wire having electric current. They were the...
- deflected a magnetic needle using a Voltaic pile. The factual setup of the experiment is not completely clear, nor if current flowed across the needle or not...
- of true north in terms of magnetic declination towards the north pole, with experimentation of suspended magnetic needles and "the improved meridian...
- Dip circles (also dip needles) are used to measure the angle between the horizon and the Earth's magnetic field (the dip angle). They were used in surveying...
- discovered in 1820 that an electric current produces a magnetic field that will deflect a comp**** needle. In the same year Johann Schweigger invented the galvanometer...