Two tiny electrodes pick up the electrons to form an electric current.
The idea is supported by classical experiments in which doctors inserted tiny electrodes into the brains of awake patients.
Today tiny electrodes are used so the original currents must have been larger.
At the same time, the researchers measured the activity of up to 46 neurons with tiny implanted electrodes.
It was like being touched with a tiny electrode.
An array of thousands of tiny electrodes lies beneath the electronic ink display.
A thin pig tail of tiny electrodes ran off it.
She pointed at the tiny remote electrodes embedded in one of the larger brain fragments.
Radiofrequency ablation: The use of a special probe with tiny electrodes that kill cancer cells.
There were none, so Conway placed the four tiny electrodes in position preparatory to restarting the replacement heart.