Microscopes

Author's Note: I am writing this piece because I just went to an Ed Chat on microscopes and I felt I had enough information to write a piece on it. In this piece I am focusing on body paragraphs and having topic sentences.

The first microscope was made in 1590, in Middelburg, Netherlands; although we don't know who exactly made it. If you think about that, that was a very long time ago, about 400 years ago The history of anything and everything is always important, such as when something was created like the four types of telescopes. For most people, a microscope can be hard to use but it can also be easy for some people. Everyone will use a microscope later in their life so they should learn about them and how to use them now.

Microscopes have been used since the late 1500's but at that time there was almost no technology. Since there was no technology, there had to be a few problems and the main one was the lenses. Over the next 100 years there were improvements that lead to great discoveries. In about the late 1600's and early 1700's, Anton van Leeuwenhoek became famous for making the simple microscope and was named "The Father of Microbiology". A man named Leo Szilárd made the electron microscope but refused to construct it. Instead, Ernst Ruska and Max Knoll built the prototype electron microscope. It is hard to say who exactly made the compound microscope because a few different people claimed that they all made it. Hans Janssen and his son, Zacharias Janssen both claimed they made it with each other but later in life, Zacharias said he was the only one to make it. Another person that declared that he made it was Galileo Galilei about 20 years after the Janssen's. Another famous person is Robert Hooke for studying and recording the first cells with a microscope. There have been plenty of famous people for making microscopes and discovering things that relate to microscopes over past 500 years.

There are 5 main microscopes that are all unique in different ways. The earliest one created was the optical microscope, also known as the light microscope. This microscope uses visible light and lenses to directly view the object. The next one created was the simple microscope that used just a single lens to look at things. Thirdly, the compound microscope was produced in the mid 1700's. The compound microscope used multiple lenses compared to the simple microscope that only used one lens. In addition, the microscope that was most recently created was made in the 1930's. This microscope is called the electron microscope because it uses beams of electrons to magnify object many of thousands of times. Another microscope is the x-ray microscope that uses a beam of x-rays to create an image. An advantage of this microscope over the electron microscope is that it is able to see living cells. Since the 5 main microscopes were all made in different time periods, they keep on developing more and more and are becoming better and better. In the future we might have a very advanced microscope that scientists will use to discover more objects.

While learning about the microscopes from the past 400 years, you might be wondering how to focus a microscope. There are a few key points on how to focus this contraption. First of all, always start on the lowest power objective lens. Then use the coarse focus by turning the knob until the object is clear. If you need it to be clearer, switch to the medium power objective lens and then turn the fine focus knob until the object is clear. To make it even clearer, switch to the strongest and highest power objective. There is one concern when using the high power objective, never use the coarse knob because if you move it too low, there's a change that the lens cracks or the slide cracks. Since there are a few concerns about using these devices, you must be careful when using a microscope.

All people will use a microscope sooner or later in their life or maybe they already did. It is actually easy to use a microscope but there is a lot of facts about microscopes.