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The telescope was built by the Dutch. Galileo Galilei improved it and was the first to use it.

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Galileo Galilei invented the thermometer. The thermometer is used to determine the temperature.

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Evangelista Torricelli invented the barometer. It's used to tell the weather and measure air pressure.

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Zacharias Janssen created the microscope. It is used to see small things.

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Issac Newton created the lows of gravity and motion which is objects in motion need force to move it. Calculus was also a type of math created by him.

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Galileo Galilei was the first scientist that used a telescope and used experiments. He was interested in the study of objects and motion and supported the heliocentric theory.

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Johannes Kepler said that planets moved around the sun like an oval instead of a circle. He believed that plants moved in elliptical or oval orbits.

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Tyco Brahe was the first scientist to take detailed notes. He's the best note taker and all scientists do what he does.

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Nicolaus Copernicus was a Polish scientist who was the first to write about the heliocentric theory. He believed that the sun, not the Earth, was the center of the universe.