In March 2014, scientists at Harvard Smithsonian Center for Astrophysics found direct evidence that the universe expanded tremendously fast, 10^-35 seconds after Big Bang and lasting for a time about 10^-32 seconds. I would like to know how big the universe had become within this time of cosmic inflation and how much further has it expanded since then. Reports say it grew from the size of a billionth of a proton by 2^100 times. This calculation I believe will further bring out the importance of the cosmic inflationary phase of the universe.
Easy Math Editor
This discussion board is a place to discuss our Daily Challenges and the math and science related to those challenges. Explanations are more than just a solution — they should explain the steps and thinking strategies that you used to obtain the solution. Comments should further the discussion of math and science.
When posting on Brilliant:
*italics*
or_italics_
**bold**
or__bold__
paragraph 1
paragraph 2
[example link](https://brilliant.org)
> This is a quote
\(
...\)
or\[
...\]
to ensure proper formatting.2 \times 3
2^{34}
a_{i-1}
\frac{2}{3}
\sqrt{2}
\sum_{i=1}^3
\sin \theta
\boxed{123}
Comments
After this humongously rapid cosmic inflationary expansion of the early universe, it was about the size of a basketball. Thereafter, it expanded at an ordinary pace similar to what we see today.
Log in to reply
Thank you sir!
Log in to reply
In popular media, one often gets the impression that the universe almost instantly expanded to something close to the size it is today, because it's rarely ever mentioned that it was only about the size of a basketball at the end of the inflationary phase. In fact, it's really not that easy to find this out by looking it up---we're told how old the universe was by that time, but not its size.
Log in to reply
you can see cosmic questions