ASTRONOMY

ARISTOTLE

• He thought that sun and moon went around the earth
• He found out that there is this thing called the parallax
• A parallax is the apparent shift in the position of objects

ARISTARCHUS

• He thought that the moon and sun went around the earth
• He was the first one to build model of this.
• He was the pioneer to use geometry in astronomy

PTOLEMY

• He thought that everything moved around the earth
• He also thought that planets orbited in a perfect circle
• This was called wheels on wheels
• He paved the way for astronomers for the next 14 centuries

COPERNICUS

• He thought that the earth rotated around the sun
• He improved on ptolemy's idea with better geometry
• He was the starting of modern astronomy

KEPLER

• Kepler thought that the earth spines around the sun but not circler
• He thought it spines in a oval pattern
• He is most famous for his 3 laws

GALILEO GALILEI

• He thought the earth spins around sun
• He found out the earth is not the only place with moon
• Found the three Jupiter moons
• His evidence push toward heliocentric model