Untitled timeline

First Microscope Created in the Netherlands.

Barometer (early 1600s, Italian) - measure air pressure

Francois Vieta introduces signs for addition, subtraction, multiplication, and division.

Kepler discovers first law of planetary motion.

Telescope (1608, Dutch) A Dutch glass maker construced a primitive telescope. Galileo heard about it and improved on the design.

Galileo plots the speed of a rolling ball on a time axis.

Galileo develops his first telescope

Galileo Galilei publishes his The Starry Messenger, (Siderial Messenger, from Siderius Nuncius, 1610). It speaks of Galileo's first observations of the moon, the stars, and jupiter as seen through a telescope. The first publication to utilize telescopic observations.

Thermometer (1611) for chemical and medical studies

Galileo published his The Letters on Sunspots. Suggests that the sun and heavens alike are corruptible.-Padua, Italy