What you need:
A lemon, strips of zinc and copper,
What you do:
- Roll the lemon to make it juicy inside.
- Stick a strip of zinc and a strip of copper into the lemon leaving one end of each strip sticking out. The two strips should not touch each other inside the lemon.
- Now touch both the strips at the same time with your tongue.
What you experience:
A tingling sensation.
Why?
It’s because you’ve turned the lemon into an electric cell!
An electric cell in its most simple form is composed of two strips of different metals and a chemical called an electrolyte which conducts the current in the case of the lemon, its juice is the electrolyte.
Picture Credit : Google
