Big Bang Theory

1
Big Bang Theory

• The Big Bang Theory is the dominant scientific
  theory about the origin of the Universe.
• According to the theory, the Universe was created
  sometime between 10 billion and 20 billion years
  ago from a cosmic expansion that continues to
  spread matter in all directions.

2
Big Bang Theory

• Discoveries in astronomy and
• physics have shown beyond a
• reasonable doubt that our
• Universe did, in fact, have a
• beginning.
• Prior to that moment there was
• NOTHING. During and after that
• moment there was something our
• Universe.
• The Big Bang Theory is an effort to
• explain what happened during
• and after that moment.

3
Big Bang Theory

• According to the theory, our Universe began as
  singularity.
• Singularities are zones which defy the current
  understanding of physics. They are thought to
  exist at the core of Black Holes. As we know.
  Black Holes are areas of intense gravitational
  pressure. By mathematical theory, the pressure is
  so intense that finite matter is actually
  squished into infinite density (boggles the
  mind, eh?).
• These zones of infinite density are called
  "singularities." By the Big Bang, our Universe
  began as an infinitesimally small, infinitely
  hot, infinitely dense, something - a singularity.

4
Big Bang Theory

• After its initial appearance, the singularity
  inflated (the "Big Bang"), expanded and cooled.
  It went from very, very small and very, very hot
  to the size and temperature of our current
  Universe.
• The Universe continues to expand and cool to this
  day AND we are inside of it

5
Big Bang Theory

• There are many misconceptions
• about the Big Bang Theory.
• Misconception 1
• There was NOT an explosion. Rather, there
  wasand continues to bean expansion. Rather
  than imagining a balloon popping and releasing
  its contents, imagine an infinitesimally small
  balloon expandingand expandingand expanding.

6
Big Bang Theory

• Misconception 2
• A fireball did NOT suddenly appearing at the
  beginning of the Universe. Rather, space did not
  exist prior to the Big Bang. Steven Hawking and
  others suggest, from mathematical calculations
  extending Einsteins Theory of Relativity, time
  and space had a finite beginning that
  corresponded to the origin of matter and energy.
  The singularity did not appear IN space rather,
  space began inside of the singularity. Prior to
  the singularity, NOTHING existed -- not space,
  time, matter or energy - nothing.

7
Big Bang Theory

• What is the proof?
• Galaxies appear to be moving away from us at
  speeds proportional to their distancesuggesting
  an expanding universe.
• Remnant heat from our very, very hot beginning
  has been measured.
• Hydrogen and helium are found throughout the
  Universeagain, supporting the idea of expansion.

8
Big Bang Theory

• If the Big Bang Theory is correct, the creation
  of the Universe occurred OUTSIDE of our natural
  realm of explanation. In other words, could
  there be a God, the master architect, outside our
  reality? I do not answer the question I just
  pose it.

9

• Another
• Bust-a-Gut Production