compass needle
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Back in the lab, the cores were sliced into thin sections and analyzed with a highly sensitive magnetometer capable of detecting signals far weaker than a compass needle.
From Science Daily ● Mar. 21, 2026
The lasers help measure changes in the atoms’ internal compass needle, which is used to calculate the strength of the magnetic field.
From The Wall Street Journal ● Nov. 20, 2025
Above, the mast tilted back and forth like a compass needle aimed at the sky.
From New York Times ● Dec. 27, 2022
These errors are akin to flipping a compass needle from north to south or east to west, respectively.
From Scientific American ● Sep. 22, 2022
Gilbert was the first to recognize that the Earth itself is a magnet, and that this is why the compass needle points to the north.
From "The Invention of Science" by David Wootton
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