Listen about three scientists. Ex. 6a), p.142

Galileo Galilei made his first scientific discovery at the age of 19.

He became Professor of Mathematics at the university when he was 60.

As a boy Isaac Newton built a model of a telescope.

The sails of the model could turn only when there was a wind.

Albert Einstein was very hard-working and attentive at the lessons in school. 

Einstein is a founder of ‘The Theory of Relativity’.