Solar power creates movement

The box as a support:

• Put a grill-skewer through the sidewall of the box (not only through the bottom).
  

• Fix the magnet at the nut. Bring them together as you can see in the picture.
  

The PET bottle as a support:

• Use a PET bottle as a support.
  

• Adhesive tape on both sides reinforces the angles of the blue drinking straw.
  

The rotatable suspension:

• Pierce a tiny hole into the blue drinking straw with a nail, so that the fixing pin can rotate well.
  

• Push the fixing pin through the yellow drinking straw.
  

• If the drinking straw glides from the fixing pin, you can put adhesive tape or a piece of foam rubber onto the end of the pin.
  

The rotor:

• Build a two armed propeller from thick drawing paper. Follow the images to the left, from left to right and top to bottom.
  

• Transfer the template to the right to thick drawing paper.

È anche possibile stampare il disegno (PDF)

• Cut out along the solid-lines
  

• Attach a balsa block to the center of the rotor with glue
  

• Fold up the trailing edges of the rotor
  

• Pierce the middle point with a needle
  

• Compare different rotors of different sizes and out of different materials.