The Solar System
Published on Mar 16, 2016
No Description
MORE DECKS TO EXPLORE
PRESENTATION OUTLINE
ARISTOTLE
- Greek philosopher
- Thought earth was the center of all things
- Stars are so far away the parallax cannot be seen with the naked eye
Photo by Joe Plocki (turbojoe)
ARISTARCHUS
- Greek astronomer and mathematician
- Proposed a heliocentric model of the solar system
- Ideas were not widely accepted
Photo by dcysurfer / Dave Young
PTOLEMY
- Egyptian astronomer, geographer and mathematician
- His book The Almagest is based on observations of the planets going back 800 years
- Developed a geocentric model that lasted 14 centuries
COPERNICUS
- Polish astronomer
- Everything no was still based on observations made by the naked eye
- His new model fit observations better than the geocentric models
Photo by clockworkimposing
KEPLER
- German mathematician
- Realized planetary motions were not circular
- Keplers laws:
- 1) planetary orbits are ellipse with the sun at one focus
- 2) planets move faster in their orbits when closer to the sun
- 3) relates the distance of a planet from the sun to the time it takes to go once around its orbit
Photo by perpetualplum
GALILEO
- Scientist
- Asked questions that we now call scientific methods
- Made improvements to the telescope
- His observations showed that earth was not the only object that could be orbited
- Also observed that Venus goes through phases similar to those of our moon
Photo by HarshLight
