This week , our students of third of ESO have to discover how a homemade projector works.
The experiment is about to make a projector by using a bulb with water as a lens and a cellular
We found this experiment on the Internet but, the main aim is to explain it by using the optic
laws we learnt in class.
What kid of lens do we have? Why if we move the mobile the image on the screen gets bigger
Here you have some pictures of the making process