Part 1 of Essay
has changed the world greatly by being able to make distant objects appear closer and more distinct. It helped scientists to discover things that could not be seen by the naked eye. For example, a lot of things in space would have not been discovered if it were not for . Also, it helped the world of eyesight. It would not ....

Part 2 of Essay
.... century. It revealed unsuspected phenomena in the heaves and had a profound influence on the controversy between followers of the traditional astronomy, the cosmos, and those who favored the naked eye. It was the first extension of man’s senses and demonstrated that ordinary observers could see things that Aristotle had not dreamed of. It therefore helped shift authority in the observation of nature from men to instruments. In short, it was the prototype of modern scientific instruments. But was not the i ....