In the experiment, the compass detected magnetic fields with a strength between 0.1 gauss, which is less than the Earth's magnetic field, and 200 gauss, which is stronger than a small iron magnet.

在试验中，罗盘探测到的磁场强度范围从低于地球磁场的0.1高斯到高于一小块磁铁的200高斯。

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When a magnet is freely suspended it becomes a compass.

把一块磁铁随意地悬挂起来，它就会变成一个指南针。

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If you bring a permanent magnet near a compass and move it around, the compass will react.

如果把一块永久磁铁拿到指南针附近，并围绕指南针移动，指南针将做出反应。

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