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NOTES 1.pdfTHE BIG BANG AND THE INFLATION
THE BIG BANG AND THE INFLATION
All of you already know what The Big Bang is... but, probably you don't know that this theory had some problems such as:
The Flatness Problem:
WMAP (Wilkinson Wilkinson Microwave Anisotropy Probe. A a NASA Explorer mission that launched June 2001 to make fundamental measurements of cosmology) has determined the geometry of the universe to be nearly flat. However, under Big Bang cosmology, curvature grows with time. A universe as flat as we see it today would require an extreme fine-tuning of conditions in the past, which would be an unbelievable coincidence.
Javier Santaolalla explains both Theories
The Horizon Problem:
Distant regions of space in opposite directions of the sky are so far apart that, assuming standard Big Bang expansion, they could never have been in causal contact with each other. This is because the light travel time between them exceeds the age of the universe. Yet the uniformity of the cosmic microwave background temperature tells us that these regions must have been in contact with each other in the past.
The Inflation Theory, developed by Alan Guth, Andrei Linde, Paul Steinhardt, and Andy Albrecht, offers solutions to these problems and several other open questions in cosmology. So it's important to know both of them in order to understand The origin of the Universe.
TASK 3. I propose a challenge... look at these videos and links about The origin of the Universe and try to explain:
What happened from the Big Bang to the present?
What is the cosmic microwave background?
Link with information about Big Bang Theory:
https://wmap.gsfc.nasa.gov/universe/bb_theory.html
Link with information about Inflation Theory:
Deadline: 07/10/2022
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