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U2: BIG BANG THEORY Brainstorming and Back to the Beginning

U2: BIG BANG THEORY Brainstorming and Back to the Beginning. 1. What makes a theory a theory?. 2. Why is a theory better than a guess?. 3. List everything you know about the Big Bang Theory. A Theory…. Well-substantiated explanation of some aspect of the natural world.

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U2: BIG BANG THEORY Brainstorming and Back to the Beginning

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  1. U2: BIG BANGTHEORYBrainstorming and Back to the Beginning

  2. 1. What makes a theory a theory?

  3. 2. Why is a theory better than a guess?

  4. 3. List everything you know about the Big Bang Theory

  5. A Theory… • Well-substantiated explanation of some aspect of the natural world. • It typically incorporates many confirmed observations, laws, inferences, and successfully confirmed hypotheses. • 4. While you are viewing the Nova movie clip list any EVIDENCE to support the • Big Bang Theory • Answer: Presence of …

  6. The big bang created flash of light across space that can still be observed in what section of the EM Spectrum? • Microwave The glow (detection) is strongest in the microwave region of the EM spectrum

  7. Two smart dudes in 1964 discovered the cosmicmicrowavebackgroundradiation (CMBR)

  8. WMAPA better baby picture • WMAP (Wilkinson Microwave Anisotropy Probe) experiment, a map showing deviations in the temperature from its average value of 2.725K. Red areas are hotter than average and dark blue areas are cooler.  • The Milky Way is at the center of the image (Data from 2001-2008)

  9. WMAP Fluctuations in the cosmic microwave background radiation

  10. WMAP found clumps of stuffWhat are the red areas?

  11. WMAP data reveals that its contents include 4% atoms, the building blocks of stars and planets. Dark matter comprises 22% of the universe. This matter, different from atoms, does not emit or absorb light. It has only been detected indirectly by its gravity. 74% of the universe, is composed of "dark energy", that acts as a sort of an anti-gravity. This energy, distinct from dark matter, is responsible for the present-day acceleration of the universal expansion. WMAP data reveals that its contents include 4% atoms, the building blocks of stars and planets. Dark matter comprises 22% of the universe. This matter, different from atoms, does not emit or absorb light. It has only been detected indirectly by its gravity. 74% of the universe, is composed of "dark energy", that acts as a sort of an anti-gravity. This energy, distinct from dark matter, is responsible for the present-day acceleration of the universal expansion.

  12. 5. How is the Universe like a balloon? 6. A. How is the Universe not like a balloon? B. How is the Milky Way Galaxy not like a balloon?

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