If you had a magic microscope that could see how things work on the tiniest scale in nature, you might get a bit of a surprise.
如果你有一个神奇的显微镜，可以看到自然界最小尺度上的运作方式，你或许会深感意外。
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Scanning tunneling microscope (STM) work by the voltage added to the microscope probe tip and the ends of the scanned object and then detect current changes.