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Cosmology

Cosmology. Big Bang and the Expanding Universe. Richard Lasky – Summer 2010. Cosmology. General Relativity serves as the foundation for modern Cosmology Cosmology is the study of the universe as a whole It deals with: A search to understand: The observed universe Its origin Its future.

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Cosmology

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  1. Cosmology Big Bang and the Expanding Universe Richard Lasky – Summer 2010

  2. Cosmology • General Relativity serves as the foundation for modern Cosmology • Cosmology is the study of the universe as a whole • It deals with: • A search to understand: • The observed universe • Its origin • Its future

  3. The Big Bang • The idea that the universe had a beginning was first suggested by the general theory of relativity • Physicists believe that the universe began as a tiny dense point which expanded outward to produce the vast structure we see today http://www.youtube.com/watch?v=hSZqhqR5XKM&NR=1

  4. Expanding Universe • The galaxies we see in all directions are moving away from the Earth, as evidenced by their red shifts • The red shift is apparently a Doppler shift and indicates that essentially all of the galaxies are moving away from us • Hubble determined that the red shift (recession speed) is proportional to distance http://www.youtube.com/watch?v=iCI8K9mD_yU

  5. Expanding Universe

  6. Standard model of the stages of the universe

  7. Large Hadron Collider at CERN http://www.youtube.com/watch?v=rgLdIly2Xtw&feature=related

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