The lens is a piece of curved glass or a different transparent substance that can be used for multiple purposes. It can be used for magnifying to focusing. Throughout the years, the uses of lenses has greatly expanded and improved in many ways. Now, we can see planets far away or magnify a small particle.

The actual lens, a piece of curved glass, never really had a true inventor, it was probably formed naturally. However, the earliest record of lenses was a round glass sphere filled with water that was created by The Greeks and The Romans. They used it as burning glasses. Scientists believe that there were earlier lenses, but their uses remain unknown. In 1268, an English philosopher named Roger Bacon stated the very first idea of using lenses in optical correction. However, it has been said that the uses of lenses were in use in China, during the 10th century, well before it was introduced in Europe. It was simple a lens with a circular frame securing it. R

It is very clear to me that the uses of the lens are imperative. Scientists would not be able to study and analyze small particles and astronomers wouldn?t be able to explore our galaxy without leaving our atmosphere. The functions of the lens keep on increasing and we are becoming more and more dependant on the lens. The world would be a lot different if we didn?t have lens. Optical errors are no problem to us because of lenses. Our world would be completely different without lenses.

The world?s largest optical telescope is located at the peak of the dormant volcano, Mauna Kea in Hawaii, 4,205m above sea level.

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