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Lesson Scientists
16

and Inventors

Who Changed

the World

Science and Technology

Warm Up

• Can you imagine your life without the telephone, television, computer and electricity?
What would it be like?

• What do you think made a few people invent such wonderful things?

Let us read a passage about a few of the most famous scientists and inventors whose
discoveries have changed our lives.

I Read

Nowadays, we live a life full of comfort. Technology and information are easily
available whenever we need them. However, a lot of things that we take for granted
were carefully thought out, discovered and invented by thinkers, scientists and
discoverers of previous generations. One such person was Isaac Newton.

It was the year 1665 when a young mathematician and physicist
named Isaac Newton was sitting in his living room, drinking a cup of
tea. It was a beautiful day, warm and sunny. Isaac was relaxing in his
chair and thinking about the forces of nature. As he sipped his tea,
he saw an apple fall to the ground. This sight started a chain of
thought in his mind. ‘What caused the apple to fall?’ He knew that physicist

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