https://padlet.com/mavena0001/lbwi2u43oraolfiv en-us 2021-01-27 23:26:18 UTC 2021-02-02 07:26:30 UTC hello@padlet.com https://padlet.net/icons/png/1f600.png mavena0001 https://padlet.com/mavena0001/lbwi2u43oraolfiv/wish/1134166522 (384-322 BC)
-Geocentric 
-all objects orbit around Earth in perfect circles
-Couldn't explain the backwards motion of the planets. 
Source: video ]]> 2021-01-27 23:31:45 UTC https://padlet.com/mavena0001/lbwi2u43oraolfiv/wish/1134166522 mavena0001 https://padlet.com/mavena0001/lbwi2u43oraolfiv/wish/1134188222 (100-170 AD)
Geocentric 
-The planets and the sun both moved on epicycles 
-The geocentric model was very messy and confusing 
Source: Video]]> 2021-01-27 23:46:24 UTC https://padlet.com/mavena0001/lbwi2u43oraolfiv/wish/1134188222 mavena0001 https://padlet.com/mavena0001/lbwi2u43oraolfiv/wish/1134196809 (1473-1543)
-Heliocentric 
-The sun is at the center of the solar system 
- Was difficult to prove that the sun was at the center of everything because the circular orbits were inaccurate. Both models were bad at predicting how the planets would move. 
Source: Video ]]> 2021-01-27 23:52:27 UTC https://padlet.com/mavena0001/lbwi2u43oraolfiv/wish/1134196809 mavena0001 https://padlet.com/mavena0001/lbwi2u43oraolfiv/wish/1134216149 (1571-1630)
Heliocentric 
-Decided that orbits did not have to be perfect circles and could be ellipsis.
-Model was based on geometry  which was inaccurate. 
Source:https://www.thegreatcoursesdaily.com/what-johannes-kepler-got-wrong/]]> 2021-01-28 00:05:12 UTC https://padlet.com/mavena0001/lbwi2u43oraolfiv/wish/1134216149 mavena0001 https://padlet.com/mavena0001/lbwi2u43oraolfiv/wish/1134241977 (1564-1642)
-Heliocentric 
-His telescope pointed out Jupiter's four moons and saw that they Venus has phases like our moons. Which made no sense in the Geocentric model.
-Did not believe that our moon controls the ocean tides. He also didn't believe how comets were a disruption in the Earth's atmosphere.
Source: https://www.princeton.edu/news/2002/03/15/science-writer-tells-galileos-modern-day-struggles#:~:text=Galileo%20also%20had%20his%20share,of%20objects%20in%20the%20heavens.%E2%80%9D


]]> 2021-01-28 00:20:55 UTC https://padlet.com/mavena0001/lbwi2u43oraolfiv/wish/1134241977 mavena0001 https://padlet.com/mavena0001/lbwi2u43oraolfiv/wish/1134282060 (2021)
-A model close to Heliocentric 
-In modern day. the sun is at the center of our solar system and planets move in elliptical orbits around it.
-It is hard to visualize because the numbers are so huge.  
Source:https://www.treehugger.com/every-solar-system-model-youve-seen-is-wrong-4863714]]> 2021-01-28 00:43:03 UTC https://padlet.com/mavena0001/lbwi2u43oraolfiv/wish/1134282060