magnetic needle

Example Sentences

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Finding the magnetoreceptors responsible for triggering these neurons has been like looking for a magnetic needle in a haystack.

From Science Magazine • Jun. 23, 2016

Last week Bendix Aviation Corp. announced a new automatic compass that makes the old magnetic needle* look as obsolete as a warrior's spear.

From Time Magazine Archive

He said: "Nothing must deflect the magnetic needle."

From Time Magazine Archive

With the magnetic needle they began to sail farther away from the shores, and since then they have discovered many new seas.

From Fables for Children, Stories for Children, Natural Science Stories, Popular Education, Decembrists, Moral Tales by Tolstoy, Leo, graf

Astatic, a-stat′ik, adj. having a tendency not to stand still: losing polarity, as a magnetic needle.

From Chambers's Twentieth Century Dictionary (part 1 of 4: A-D) by Various