NOUN
- a slender magnet suspended in a magnetic compass on a mounting with little friction; used to indicate the direction of the earth's magnetic pole
How To Use magnetic needle In A Sentence
- Do you know who invent magnetic needle?
- Thus if the power of the magnetic needle of turning towards the north, or the shock given by touching both sides of an electrized coated jar, was related for the first time to a philosopher, and to an ignorant person; the former would be less ready to believe them, than the latter; as he would find nothing similar in nature to compare them to, he would again and again repeat the experiment, before he would give it his entire credence; till by these repetitions it would cease to be a single fact, and would therefore gain the evidence of analogy. Zoonomia, Vol. II Or, the Laws of Organic Life
- The magnetic needle in the binnacle was the point on which the Mary Turner ever pivoted. CHAPTER XII
- A galvanoscope is an instrument or apparatus, such as a magnetic needle, for detecting the presence and direction of electric currents, specially those of feeble intensity.
- The Chinese and Tartar mandarins who accompanied them hindered them exceedingly; they had orders not to let the Fathers go where they would, ... and would never allow them sufficient time for observation of meridians, the measurement of roads, the variation of the needle (magnetic needle), the rhomb, and the estimation of positions from these elements. The Catholic Encyclopedia, Volume 12: Philip II-Reuss
- When lava solidifies, its tiny ferrous particles align themselves, like magnetic needles, with the earth's magnetic field.
- I concluded, therefore, said Brugmans, that if the iron plates were interposed between the magnet and the needle lengthways, instead of breadthways or right across, the action of the magnet on the magnetic needle would, in consequence of this great increase of resistance, become still weaker, or perhaps evanescent. Hints towards the formation of a more comprehensive theory of life.
- Below is a conventional galvanometer with magnetic needle; above are two concentric coils of fine wire and a needle suspended from six limbs between the two coils.
- The steady-shear surface viscosity was measured in a custom built magnetic needle viscometer.
- This can be proved by suspending a magnetic needle like a pithball, and approaching another towards it, as illustrated in figure 26, where the north pole N attracts the south S. The Story of Electricity