History of Astronomy Views of the Solar System
- Slides: 33
History of Astronomy Views of the Solar System
How did all of SPACE start? No one knows for sure, but it’s believed that… Between 10 to 20 billion years ago the entire universe was smashed into a TINY atomic dot. It was so hot that it exploded causing the Big Bang, the birth of the universe.
What did it look like? At first, the universe was a very hot, fireball of expanding, cooling gas. After about one million years the gas started to condense to form the objects in the sky.
How did different views of solar system and theories about what was going on in outer space develop and change over the years? Let’s start with Aristotle…
Aristotle (Air-u-stot-ul)
Aristotle: The “Grandfather of Science” Believed in the “Geocentric Model” Thought the planets and stars moved around Earth in perfect circles
Geocentric Model “Geo” means Earth + “centric” means center -----------------= Earth-centered model Geocentric means everything revolves around EARTH…weird!
What technology did Aristotle use? • Naked eye • Observed Earth is a sphere • No telescopes!
Where was Aristotle from? When did he make his observations? Scientist from Greece 350 B. C.
Ptolemy (toll-u-me)
Ptolemy He believed in the GEOCENTRIC MODEL (Earth-centered) Predicted the positions the planets are in now
What technology did Ptolemy use? • Naked eye • No telescopes!
Where was Ptolemy from? When did Ptolemy make his observations? Greek astronomer 140 A. D.
Geocentric Model
Copernicus (cu-per-ni-cus)
Copernicus • “Founder of Modern Astronomy” • Believed in Earth’s rotation on its axis once each day AND • that Earth revolves around the Sun once a year. This is known as the HELIOCENTRIC MODEL.
Heliocentric Model • “HELIO” means Sun + “CENTRIC” means center = Sun-centered model • This was radical, new thinking and not easily accepted by other scientists
What technology did Copernicus use? Naked eye
Where was Copernicus from? When did Copernicus make his observations? From Poland Lived more than 100 years later, in the 1500 s… 1543 A. D.
Galileo
Galileo: Discovered Jupiter’s 4 largest moons Used the telescope to prove Copernicus was correct…the Sun is the center of our Solar System (Heliocentric)
Galileo also… • Observed that we can see phases like our moon when we look at Venus!
What technology did Galileo use? TELESCOPE! Made a telescope that could enlarge objects up to 20 times! WOW…that’s not much… It is less than most binoculars today!
Where was Galileo from? When did he make his observations? Scientist from Italy Lived 100 years after Copernicus – 1610 A. D.
Heliocentric Model
Tycho Brahe (Teek-O)
Tycho Brahe • Made careful observations • Recorded positions of the planets • Believed in Heliocentric Model
What technology did Tycho use? Naked eye Tycho’s Observatory
Where was Tycho from? When did he make his observations? From Denmark Late 1500’s
Kepler
Kepler • Used Tycho’s data to find elliptical orbits of the planets (not perfect circles!) • Heliocentric Model
What technology did Kepler use? • Naked eye • Math calculations • Telescope
Where was Kepler from? When did he make his observations? • From Germany • Worked in the 1500 -1600 s
- Learning astronomy by doing astronomy activity 1 answers
- Learning astronomy by doing astronomy activity 1 answers
- Learning astronomy by doing astronomy activity 1 answers
- Astronomy 161
- Solar system astronomy class
- Solar system astronomy class
- History of solar system
- Www.wholesalesolar.com
- Inexhaustible source of energy
- Hình ảnh bộ gõ cơ thể búng tay
- Lp html
- Bổ thể
- Tỉ lệ cơ thể trẻ em
- Gấu đi như thế nào
- Chụp tư thế worms-breton
- Alleluia hat len nguoi oi
- Các môn thể thao bắt đầu bằng tiếng đua
- Thế nào là hệ số cao nhất
- Các châu lục và đại dương trên thế giới
- Công của trọng lực
- Trời xanh đây là của chúng ta thể thơ
- Mật thư tọa độ 5x5
- 101012 bằng
- Phản ứng thế ankan
- Các châu lục và đại dương trên thế giới
- Thơ thất ngôn tứ tuyệt đường luật
- Quá trình desamine hóa có thể tạo ra
- Một số thể thơ truyền thống
- Cái miệng bé xinh thế chỉ nói điều hay thôi
- Vẽ hình chiếu vuông góc của vật thể sau
- Biện pháp chống mỏi cơ
- đặc điểm cơ thể của người tối cổ
- Ví dụ giọng cùng tên
- Vẽ hình chiếu đứng bằng cạnh của vật thể