Astronomy Ch0

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Author:
k_manivan
ID:
195290
Filename:
Astronomy Ch0
Updated:
2013-01-25 15:09:18
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  1. How can we know if what we are being told is true?
    Evidence
  2. UNIVERSE

    "uni" =one
    • As all that is. Not just everything, but all space and time and all stuff in that space and time. We have to imagine this since we don't know if we have detected all that is. 
    • As all that we have detected. We can limit the definition to what we have observed or detected and that puts a different twist on things.
  3. Dark Energy
    • The universe (the space time itself) is expanding.
    • Speeding up!
  4. Dark Matter
    • How galaxies (islands of stars) move
    • Most of the matter in the universe (80%) is dark matter
  5. What do we call the unkown reason for galaxies spinning in an unexpected way?
    Dark Matter
  6. What do we call the unknown reason for our entire universe expanding and expectantly speeding up? 
    Dark Energy
  7. How much is a Billion?
    • 1 with 9 zeroes 
    • 1 Billion= 1,000,000,000 = 1x109
    • 1 Milion= 1,000,000 =1x106
    • 1 Thousand= 1,000 =1x103

  8. 1 Thousand Seconds
    =20 Minutes
  9. 1 Million Seconds
    =10 Days
  10. 1 Billion Seconds
    30 Years
  11. Grouping in Space
    Group of stuff -> space -> Bigger group of stuff -> bigger expansion of space and so on...
  12. Nucleus of an Atom
    Group of tiny protons and neutrons
  13. Atom
    Protons, neutrons, electrons
  14. You
    Group of atoms
  15. Cities
    Group of people
  16. Solar System
    Group of all the stuff going around our star called the "sun"
  17. Group of Stars
    open clusters and globular clusters of stars
  18. Galaxy
    Big "island" group of stars
  19. Galaxy Clusters
    Groups of galaxies
  20. Super clusters
    Larger groups of galaxies
  21. abv. list
    • ATOMS
    • space

    • THINGS
    • space

    • PLANETS/MOONS
    • space

    • SOLAR SYTEM
    • space

    • STAR CLUSTER
    • space

    • GALAXY 
    • space

    • GALAXY CLUSTER
    • space

    GALAXY SUPERCLUSTER
  22. Who was the first to come up with the idea of the Big Bang Theory? When was that?
    Edwin Hubble

    1929

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