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I will be telling you about Joans Kepler, Galileo Galilei, the Side Rule, and John Napier.

First, Joanns Kepler was born in 1571 and died in 1630. Before him people thought the sun orbited the earth. Then Kepler came and showed how the earth spins and orbits the sun.

Second, Galileo Galilei helped look at space and gather data from it.

Third, the Side Rule was a ruler to measure with. It was usually 25 inches and very wide. The Side Rule measured centimeters, inches, and feet. The Side Rule provided accuracy in measurement.

Lastly, John Napier invented the microscope because he wanted to look at things much closer.

The microscope and telescope are similar and different. They both have lenses you look at things through. Their differences are that the microscope looks at clumps of stuff, and the telescope looks at planets and space.