How a Shock Machine Works

The teacher is strapped into a chair in another room and hooked up to wires. And the teacher is seated in front of a shock machine. His job is to teach the learner pairs of words and then to test their memory. If they got the answer right, the teacher would move on to the next one. But if the learner gets the rong, the techa is instructed to give them an electric shock. Here's how it worked.