Albert Abrams

Albert Abrams was a man who lived a long time ago and he said that he could use a special machine to find out if someone was sick or not. He called it a "black box" and he said that it could tell him what was wrong with people just by using electricity.

However, not everyone believed that he was telling the truth. Some people thought that he was just pretending to know things about people's health and that he was trying to trick them into giving him money.

In the end, many scientists and doctors tested his machine and found that it did not work the way he said it did. They showed that he was not really able to tell if someone was sick just by using electricity. So, people stopped believing in him and his machine.