I call it a hypothesis
because it hasn't got enough science and evidence behind it to be
called a theory.
OK, I sometimes like to
delve into the world of science because I am not a scientist and I
have questions.
Recently I read an article
about a hypothesis that water was brought to this planet by meteors.
It seemed like such a ridiculous idea that it has been infesting my
brain.
The basics of the story
went something like this: (Follow this LINK to read the story)
After the Big Bang caused
trillions of trillions of tons of dust and rock to be flung into the
universe, it formed up into planets. Earth being one of those
planets. This happened as rocks came together and formed a gravity
well (for lack of a better name). The gravity then drew in more
particles and the Earth grew bigger. As a result of all this gravity
and mass, the Earth became a molten ball of super heated rock.
I really want to stop here,
because this part makes no sense. Yes, the core would become molten
under this extraordinary pressure and the mass of the Earth. But, why
would the crust? Why would the outside of the Earth, that is not
under this force and pressure? Just a question. Space is cold after
all.
So, the Earth got super
heated and all the water was vaporized. Since the Earth had no
atmosphere, the water vapor disappeared into space. Why? How?
According to this theory,
all these particles were drawn by the tremendous force of the gravity
of the Earth into this big ball. So, how did all these water and gas
particles achieve escape velocity? How did these water and gas
molecules that are being pulled into the gravity of this forming
planet, suddenly acquire the energy to be propelled away from the
Earth with enough force to escape that gravity?
I would like to tell you
this isn't rocket science, but it actually is. It is rocket science
that has taught us about escape velocity. Escape velocity is
necessary for a rocket to escape the gravitational forces of the
Earth and achieve orbit or go to the moon, or anywhere else. It has
nothing to do with atmosphere. It is all about gravity.
But, why wouldn't the Earth
have atmosphere? Surely gasses and dust would have come with all the
rest.
You see, we do not have
atmosphere because we have atmosphere. We do not have water vapor in
the atmosphere because we have atmosphere. We have them both, because
we have gravity.
Now, if the Big Bang
hypothesis were true, then science has to try to explain why we have
atmosphere and other planets don't. Most of that can be explained by
temperature. Planets far from the sun would have their gasses frozen
and lying on the surface. Planets that are real close to the sun,
might have had their atmosphere swept away by solar winds. But, since
those are such big planets, it is really hard to believe that solar
winds would be able to do that.
So, there is a need to add
a hypothesis. That is, some way that atmospheres could be lost and
then replaced. Although, the idea that all this water would have come
to this planet and not the other, larger, planets with stronger
gravity seems like such a reach.
When you start from the
idea that the Big Bang is true, you then have to come up with
amazingly fantastical and unbelievable stories of how it could have
come about. After all, “GOD did it” just isn't a good enough
answer, even if it is true. The one thing that can be said about
science is that it is not a search for the truth. It is just a search
for convenient answers.
The truth is, there is no
scientific explanation for the water on this planet. There is no
scientific explanation for life on this planet. Maybe, someone will
come up with an idea that actually makes sense, some day. But for
today, it would be much easier to just say we don't know and continue
to seek answers, then to put out answers that any sophomore in high
school can see has no validity.
So, I have to ask myself,
how is it that such a hypothesis gains any ground in the light of the
simple understanding of Escape Velocity?
Any Answers?
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