Motivation

Abstract

For a small child, the world is full of wonders. Everyday it discovers new ones. Soon it starts to ask tough questions like: “Why does an apple fall down from a tree, why does the water in an alpine river with large rocks partly flow uphill, why is the Sun hot and why does it turn red in the evening, how is a rock formed and when did it happen”?

These and many other questions have been asked since ancient times and the more people thought about them and made experiments, the more they learned about our environment and the way nature works.