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Astronomy

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Jocelynn Nykamp

on 11 June 2015

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Transcript of Astronomy

Astronomy
What is Astronomy??
- The scientific study of celestial objects
Nicolaus Copernicus
Formulated a model of the universe with the sun in the center, not the earth.
1473-1543
http://www.biography.com/people/nicolaus-copernicus-9256984
Bibliography
http://www.biography.com/people/galileo-9305220
Galileo Galilei
1564-1642
http://en.wikipedia.org/wiki/Astronomy
http://www.kidsastronomy.com/

- He invented the modern day telescope
- Proved the Copernican theory
- In 1633 he was put on house arrest for his remaining years by the catholic church
- Invented the older version of the compass
Isaac Newton
Albert Einstein
Stephen Hawking
http://www.biography.com/people/isaac-newton-9422656
1643-1727
-Co-invented calculus with the help of Gottfried Leibniz
-Universal Law of Gravitation
-His Principia
-Theory of General Relativity

1879-1955
-Theory of Special Relativity
~ Includes the effects of gravitation
~ According to the theory of GR, mass and energy determine the geometry of spacetime
~ Proved Newton's law of universal gravitation
~The speed of light is the same for all observers
~ If you travel faster than light, time travel would occure
~ Albert Einstein believes that travelling at or faster than the speed of light is impossible
~ E=mc²
1942- Present
- Known for his work to better understand black holes
- Writing science novels that are very popular in the science field
- Elaborated on Albert Einstein's theory of relativity
History of Astronomy
700 BC
Babylonians predict lunar eclipses
4000 BC
Mesopotamian astronomers made careful observations from the tops of pyramid-like towers called ziggurats
http://highered.mheducation.com/sites/0072482621/student_view0/astronomy_timeline.html
2500 BC
Building of Stonehenge
585 BC
Thales said to have predicted solar eclipse
30,000 BC
Bone carvings keep track of moon phases
0 AD
Building of Bighorn Medicine Wheel
Planets
The closer to the sun, the hotter the planet
Earth isn't too close to the sun but also isn't too far away
Earth is the only planet in our solar system that can support life naturally
Black Holes
Black holes are places where ordinary gravity has become so extreme that it overwhelms all other forces in the universe
Once inside, nothing can escape the black hole's gravity, not even LIGHT
"Through quantum effects, a black hole can slowly "radiate" and lose mass/energy." -Stephen Hawking
en.wikipedia.org/wiki/General_relativity
en.wikipedia.org/wiki/Special_relativity
www.biography.com/people/albert-einstein-9285408
www.biography.com/people/stephen-hawking-9331710
Scientists believe that we can only see about 5% of the matter in the Universe.
Fun Fact 1:
http://space.about.com/od/humor/a/AstronomyFacts.htm
Venus is quite a bit hotter than Mercury, even though it is further away from the Sun. The thickness of Venus’ atmosphere/air traps heat near the surface of the planet.
Fun Fact 2:
Conclusion
Astronomy is a very large topic. It includes anything that you could possibly find in space. I encourage all of you to further explore the world of astronomy and if it's interesting to you, maybe pursue it.
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