If you put the electrodes in the right position and you measure in the right way you can detect the electrical activity of the heart and record it on a strip recorder like this one shown here, or display it on a computer.

如果将电极放置正确,并采用正确的方式检测,就能检测到心脏的电活动,并将它记录在像这样的长图记录仪上,或者显示在电脑上

耶鲁公开课 - 生物医学工程探索课程节选

Damian Cruse of the Cambridge group thinks he may have found a solution in electroencephalography (EEG), a cheaper and more portable way of measuring brain activity via electrodes pasted to the patient's scalp.

ECONOMIST: Vegetative state

The team argues that switching the voltage applied to these electrodes in a particular way should create a pattern of polarisation in the rod which moves superluminally, just like the charge distribution in the plasma surrounding a pulsar.

ECONOMIST: Physics

Data is stored in the magnetic state of the electrodes, similar to the way data is stored in a magnetic hard drive.

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