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  • Created by: Paris
  • Created on: 21-01-13 16:06
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  • P1 - Topic 3 - Waves & The Universe
    • Distance between Earth and the Sun is 1AU
      • 1AU = 150,00,00KM
        • Distance to edge of solar system is 30.07AU
          • 'Proxima Centuri' is the closest star to our solar system. 271,000AU and 4.2 LIGHT YEARS away
            • Light Year - Distance it takes for light to travel in a vacuum in 1 Earth year
              • Light travels  300,00km per second.
                • Takes light 8 minutes to reach Earth from the Sun
                • Takes 4.2  Light years for to light to reach us from Proxima Centuri
                • The Milky Way is a spiral galaxy. It's 100,000 light years to travel  the diametre
                  • Our galaxy is one of billion in the universe, they estimate 93 billion light years to cross it.
      • Distance to edge of solar system is 30.07AU
        • 'Proxima Centuri' is the closest star to our solar system. 271,000AU and 4.2 LIGHT YEARS away
          • Light Year - Distance it takes for light to travel in a vacuum in 1 Earth year
            • Light travels  300,00km per second.
              • Takes light 8 minutes to reach Earth from the Sun
              • Takes 4.2  Light years for to light to reach us from Proxima Centuri
              • The Milky Way is a spiral galaxy. It's 100,000 light years to travel  the diametre
                • Our galaxy is one of billion in the universe, they estimate 93 billion light years to cross it.
    • Methods of collecting data about the universe
      • NAKED EYE: Humans use visible light that we can see to gather data
      • Telescopes:  Use EM Spectrum to gather information.
        • Help you see object in the universe clearer and in more detail and give you an accurate source as it is real
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