Potato Clock

Create electricity from a simple spud with this ingenious potato clock which can power a digital alarm clock - meaning no batteries are needed. 

You don't even have to use potatoes you can try tomatoes, lemons or even a fizzy drink to power the clock. People will look at you with a puzzled expression as you read the time staring at at a couple of Maris Piper's on your living room mantelpiece.

This is the perfect gift for anyone who is interested in learning more about science. 

• Digital clock
• Transparanet tapes
• 2 pots
• Copper and zinc connecting wires