Rainwater Dynamo
We made electricity from rainwater. You need:
a bicycle dynamo
a small plactic cotainer (yoghurt container)
8 plastic spoons
hot glue
duct tape
some wooden sticks and nails
a cone (we made it with a 3d-printer)
Making the Waterwheel
Tape the dynamo to the top of a upside-down container. Then glue the plastic spoons to the head of the dynamo. So you get a whaterwheel. Example of a container on top.
Making a Container for the Water
Make with the sticks a frame for the cone so it is suspended about 30 cm in the air. Then hit a nail trought the button in the upper half and not the center so it topples over when you fill the cone with watter.
Placing the Things Next to Eachother
Place the cone in a place where a large amound of rainwater fals. Then place the waterwheel next to it and connect something to the dynamo.