If you search about the origin of the universe in internet you will get thousands of videos
Where you will be told about many things like from the big bang to modern theories
And no doubt they will be fascinating.
but in today’s video we will know about a little bit different topic. No it doesn’t mean there is a clickbait
you will know about creation of the universe but with the help of a different fact
Yes it is definitely right that universe was created from big bang almost 14 billion years ago
but it is also right that every theory has to face controversy and criticism
Now if any of you are a big fan of the theory no offence to them but you must know that
this theory is universally accepted but not fully proven.
Now this is about a whole new video so for now let’s don’t get into it deeply
Basically in this video we will try to focus on a very important aspect of the history of this video
There are many eminent scientists who had worked for this theory like George Lematre and Edwin Hubble
George Gamow and Fred Hoyle both were famous physicists of 20th Century and
this theory got world recognition for their very efforts.
now as we move on to the video we will know that comparatively Fred Hoyle played an indirect role in this fact
George Gamow was called Cosmic jester in the scientific community
He was a god gifted man and he was terribly funny. If you will ever study his works you will know that yourself
when big bang theory was just being developed he gave an important contribution in Big bang nucleosynthesis
which he called nucleocosmogenesis.
Don’t worry you will know about nucleosynthesis in a minute
So George Gamow had done most of his works on this genesis topic
In short nucleosynthesis is a process in which atomic nucleus is made and then all the other elements
Gamow’s views suggests how elements were produced from the big bang
Gamow presented an idea in which the unbelievable heat production inside the big bang create
all the elements of periodic table from which we all are made
Like a hydrogen bomb he he imagined big bang as a spot where immense nuclear fusion is taking place
now who may don’t know about nuclear fusion, it is a process in which atomic nuclei stick together
creates higher elements.
An important fact is that this process takes place in every star with which every star burns for billions of years
Now Gamow believed that if we imagine big bang like this then the same fusion process can take place in it
Now Gamow’s imagination and calculation was actually limited
no it wasn’t wrong but there were limitations that barred the progress of the theory
actually when he was evaluating the concept he realized that elements that
has higher masses like of 5 or 8 cannot be created in the process.
and the concept stuck because there wasn’t any way to solve it
and it is where Fred Hoyle came and amazed the scientific communty
but his target wasn’t to solve the problem but he actually wanted to defeat the whole big bang theory
Fred Hoyle was famous as a contrarian.
he never hesitated to go against any conventional concepts or traditional theories
now there was another problem in big bang theory along with the limitation that we just talked about
Edwin Hubble was the one from whose discovery we knew that our universe is expanding but he calculated
that universe’s age was 1.8 b years
but from the geological discoveries we already knew that only our solar system was older than that then
how the universe can be younger!
Regarding both the limitations Hoyle started to find a way to dethrone the theory. The new theory that he presented
was called steady state theory.
In a simple way this theory suggests that universe did not start from one point but
the universe was always the same and always will be
It is eternal and as it expands it creates new elements though he couldn’t explain
how out of nowhere elements can be produced
but he believed that it is better to believe that elements were produced in
an expanding universe rather than just from a point like Big bang suggests
Now an interesting fact, The name Big bang was actually given by Fred Hoyle. Yes it is ironical
but it is a fact that this theory’s biggest enemy gave its name
Actually during a BBC lecture he used the name BIG BANG as a joke
Though later many attempts were made to change the name but the name Big Bang captured
the essence of it better than any other
According to steady state theory elements weren’t produced in a explosion as big bang suggests rather
they were created in stars
which is known as stellar nucleosynthesis
This theory became able to solve the limitation in Gamow’s concept
elements of 5 & 8 masses can be produced in stars in the nuclear fusion that we discussed earlier
and this theory has the answer even to the elements which are heavier than them and
can not be processed in normal fusion power
when a star runs out of fuel and goes into supernova explosion it produces immense heat
that can easily cook other heavier elements
Hoyle’s demonstration was indeed groundbreaking, even Gamow admired the idea
but that doesn’t mean that Steady state theory was absolutely right it has its own drawbacks
if it was perfect then helium could not be distributed all over the universe uniformly
It should’ve been stored only near the stars
Now you may ask which theory is right? Because both solve a specific part of the problem
Big Bang solves the problem of initial elements and Steady State solves the problem of heavier elements
Actually the answer is that no, we can not really call one of them true or perfect
If we are talking about the creation of the universe, both of them are partly right partly wrong
like Gamow’s imagination normal elements might have been produced in the Big Bang
and like Hoyle’s demonstration heavier elements were born in the stellar nucleosynthesis
In a sense both of the theories have placed two puzzle pieces of the problem together
So at the end we have to appreciate both of these geniuses for their undeniable contribution
We hope you have found this specific event interesting
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