13 of May

Today we had our last class.

We talked about the exam and the tasks we had done among this subject. We also had time to ask some doubts about the contents of the exam. I was happy to have my question about the ahadows solved.

The question we disscused was:

- Where is the sunny part of a building?

The answer was related to the shape of the earth (sphere).

 In the Northen hemisphere the light comes from the left so the part of the builing looking at the South is the sunny  part of the building. On the other hand, in the South hemisphere the sunny part is closer to the North.