Cosmic Microwave Background or CMB Expalined
What is Cosmic Mircowave Background or CMB?
Cosmic Microwave Background or CMB is the Model of The Universe just about 400,000 years after the Big Bang. According to Big Bang Theory our Universe started about 14.5 Billions years ago with a big bang (expansion) from nothingness. It came into existence as an infinitesimally small dot in no time (for me 10ˉ³³ second is no time).
In the beginning the universe was super duper hot (millions of degrees) and it was filled with subatomic particles such as neutrinos, electrons and protons only. There was no atoms formed yet. Not even hydrogen atoms (fuel to form nebulae, galaxies and stars) existed, what existed was freely moving subatomic particles. It was very much like a plasma (did you see the screen of a plasma TV?). It was all Opaque universe. Why? The light particles (photons) have a no way to escape, they have to collide with these subatomic particles so frequent that they have no space to escape. Hence there was nothing transparent yet. It was all plasma soup!
The universe was continuously expanding and we know that when plasma expanded it cools down. These cooled down sub sub atomic particles such as neutrinos, positrons and electrons start to come together to form neutrons, protons and atomic nuclei started to take form. As a result the density of the particles (which was freely moving) in the universe dropped drastically. Hence more space for light to move around.
From nuclei, first Hydrogen atoms started to form. In this process those freely moving sub-atomic particles got used big time and their density got reduced by a big number. As a result light got a whole new space to move around and it flashed big once it got this free space to move. This is called the Background Radiation and this radiation, since the formation of the initial atoms, is still propagating smoothly thoroughly in the Universe. Once detected in 1960s scientists named it Cosmic Microwave Background or CMB.
Amazingly the temperature was dropped to 2.7K at this time (with the micro micro deviations). You can see the red dots in the model which represent the hotter areas of the Universe at that time. These minute deviations in the temperatur are the reasons for structures to form in the universe. If the temperature was universal and same all around no structure could have formed as atoms could not have move around.
Finally I can say that those subatomic particles in original plasma became first atoms, the first atoms became nebulae, galaxies, stars, planets, Planet Earth and Humans
CMB first Discovered in 1960s by two scientists Penzias and Wilson
The through study is done by the Plank Satellite and it has presented the perfect model of the universe based on Cosmic Microwave Background Radiations.
What do you think about my article? Did it give you more knowledge about the origin of Universe? Did it confuse you more? Please leave your feedback in the comment section.
That was reverse engineering. From matter back to plasma! Very cool my friend. Thanks a lot for sharing.
Very well researched and written article @mathworksheets. Great work. By the way, are you available on Steemit chat atm?
Thank you very much for you feedback @cryptodog. I use to check my steemit.chat couple times a day. You can leave a message for me there if we can't catch each other online.
Congrats for this well written and documented article! When it comes to Universe, everything is hard to understand!
Thanks a lot @hebro, for stopping by and taking your time to comment. Yes, many theories including this one on the origin of universe are not fully supported yet. Still I like the way humanity have progressed so far in this direction (more could have been done if we have avoided unnecessary wars with each other).
This is very good point! I am also against the wars! Many good things have lost in this process!
There is no limit to accomplish in space exploration (resources, unlimited energy, pleasure). I think the war mongers are like toddlers who injure each other for small toys.
Great article!! Good information for anyone who wants to learn a little bit about of current understanding of what the early universe looked like and how it evolved over time. I feel a lot of people lack this insight and think we are still very in the dark about how our universe formed, this is true is some ways, but for the most part we know what's gone down pretty accurately since the big bang popped.
Thanks for your excellent feedback @trismegistuz. Yes, a lot of people in my knowledge don't know much about the theories so far evolved explaining the origin of the universe. I always do my part to pass on whatever comes into my grasp.
I've heard that one theory is that the Universe started out at the size of a small human child and grew incredibly fast at first with exponential growth. At one point it changed to a more sustainable growth curve.
This is one big reason for thinking that it is possible for us to change to a system that grows sustainably without the need for further exponential doubling of populations. If the Universe can do it, perhaps we can do to.
It is interesting to think that things can still be detected from the original birth of the Universe. That's an awfully long time for this radiation to be still bouncing around.
When asked what happened before the big bang I think some Zen master once said, "Which big bang?" In this vast Universe as we see it does it make sense to think of anything as having a single beginning coming from nothing and therefor must have an end in the ultimate way?
At point it expanded with the speed more than that of light. It happened right after once the light first time escaped from the plasma. What I understood, my dear brother, that what is nothing according to my very week 5 senses is everything!!
This sounds a lot like part of the Heart Sutra to me dear brother.
That which we perceive as emptiness is filled with all things. There seems to be some justification for this in quantum physics with the search for the Higgs boson particle.
Absolutely right my brother, I hope one day quantum physics will declare that nothingness is everything. I think Einstein acknowledged it in his old life.
Congratulations for this great article!
Thanks for stopping by @rtdcs. I really appreciate your kind remarks :))
Great thanks for sharing!
Thanks for stopping by my friend @airmatti.
I have that you knew that the static disturbance on older t.v ... a part of that disturbance is also CMB .. which is also known as the cry of the birth of the universe .
You got it right my dear friend @utfull. I didn't know the other name of CMB "The Cry of The Birth of The Universe". Thanks for enriching my information on the topic and taking your valuable time to leaving your feedback on my posts.
The big bang theory is still highly debated. I enjoyed reading your post. Thank you for sharing.
Yes, the alternate theories such as string theory are also getting attraction. Thank you my dear brother @sashin for your feedback.
Very informative, today I understand what CMB is and even tell others about it.
This is very interesting topic indeed.