How does a magnetic compass work? Well, it’s all down to basic physics and human ingenuity. The key component of a standard baseplate compass is its magnetized needle, which is allowed to spin freely ...
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Why ships have two metal balls on the compass, the clever trick that fixes magnetic errors at sea
A ship’s steel hull becomes part of Earth’s magnetic field, which can quietly skew a magnetic compass in different directions as the vessel turns and heels. This explains how binnacle correctors work, ...
The magnetic compass is the last unknown sense in migrating animals. For some scientists, the monarch butterfly is leading ...
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