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Robert Hooke would observe fleas and cells through the lenses and would right everything he observed in his note book that he called micrographia. 

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Robert Hooke would observe fleas and cells through the lenses and would right everything he observed in his note book that he called micrographia. 

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Robert Hooke built the first microscope that worked in 1665. He noticed that tissues were made up of building blocks know as the cell.

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Robert Hooke built the first microscope that worked in 1665. He noticed that tissues were made up of building blocks know as the cell.

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In the 1670's A. V. Leeuwenhoek cleaned lenses and at that time he was considered the best. Eventually he created a well made microscope. During 1674 he could see and describe bacteria.

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In the 1670's A. V. Leeuwenhoek cleaned lenses and at that time he was considered the best. Eventually he created a well made microscope. During 1674 he could see and describe bacteria.

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Around the 17th century Galileo a common know astronomer and physicist contributed to the development of lenses and focusing.

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Around the 17th century Galileo a common know astronomer and physicist contributed to the development of lenses and focusing.

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Eventually microscopes improved over time getting better and more advanced. Eurnas Ruska had also made a microscope but it was a electron microscope in 1931.

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Eventually microscopes improved over time getting better and more advanced. Eurnas Ruska had also made a microscope but it was a electron microscope in 1931.

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One they would do was put two glasses on top of each other and it would magnify.

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One they would do was put two glasses on top of each other and it would magnify.