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Regarding Universe!

 
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As this is the International Year of Astronomy, i am reading more & more about universe, space, galaxies etc from Wikipedia.

As Word Universe means "something transported in a circle"!

one theory says Universe started expanding due to Big Bang & it had incredibly high Energy density before big bang.
By Conservation of energy the total amount of energy in an isolated system remains constant.

(eg. if we take small spring & press it both way it by Fingers. It fill by high Energy density. but for filling that energy we have that energy in our muscles. & if we decrease pressure on spring, spring will expand & energy come to our Fingers. Means we follow Conservation of energy.)

Then i have question about Universe
In universe, from where that incredibly high Energy comes in universe?

As universe fill with Aether! Beginning with the Moon, up to the limits of the universe, everything is made of aether.Is that helps to energy remain constant?

I have many questions but i do not ask all question at a time!
First what code ranchers think about this issue?

note:- If my thinking or way of asking question is wrong then please help me to improve it!
 
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one theory says Universe started expanding due to Big Bang & it had incredibly high Energy density before big bang.
By Conservation of energy the total amount of energy in an isolated system remains constant.




Just being anal... But since "time" and "space" was "created" with the big bang, there is no such a thing as "density" before the big bang. Heck, there is no such a thing as "before the big bang"...

Henry
 
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You do understand that the concept of the "aether" is a quaint, old-fashioned idea that was conclusively disproved many years ago, most famously in the Michaelson-Morley experiment?
 
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Mandar Khire wrote:Then i have question about Universe
In universe, from where that incredibly high Energy comes in universe?


Nobody knows. If you find it out, you'll win the Nobel Prize.

As universe fill with Aether! Beginning with the Moon, up to the limits of the universe, everything is made of aether.Is that helps to energy remain constant?


There is no aether. This is an old idea from the end of the 19th century, because the physicists at that time thought that there had to be some medium in the Universe through which light waves are travelling. In 1887, Michelson and Morley did a famous experiment and discovered that aether does not exist.

I have many questions but i do not ask all question at a time!
First what code ranchers think about this issue?


I love astronomy and science! For the International Year of Astronomy there is a special daily podcast: the 365 Days of Astronomy podcast. I also listen to Astronomy Cast and Planetary Radio. Very interesting!
 
Ernest Friedman-Hill
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Jesper Young wrote:
There is no aether. This is an old idea from the end of the 19th century, because the physicists at that time thought that there had to be some medium in the Universe through which light waves are travelling. In 1887, Michelson and Morley did a famous experiment and discovered that aether does not exist.



Indeed. Too bad no one else had already explained this. Oh wait...
 
Jesper de Jong
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Hah hah! :P
 
Mandar Khire
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I agree with both of you about aether!
But what about CMBR?
Means i want to say some thing is there other than air or something like that?
& is Universe expanding or re collapsing ? :?:
 
Jesper de Jong
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The cosmic background radiation is just radio waves, the echo from the Big Bang. In fact, the CMB is one of the best pieces of evidence that the Big Bang theory is correct.

Ofcourse the universe is not filled with air. Air is only around planet Earth. Go up a few hundred miles and there's no air anymore. The Universe is almost vacuum.

What the ultimate fate of the Universe is, nobody knows. According to the current understanding, it will probably expand forever, and not collapse back in a big crunch. About ten years ago, physicists discovered that the expansion of the Universe is not slowing down, in fact, it is accelerating. This was a very surprising discovery, and we still don't understand why this is happening. It lead to the idea of dark energy.
 
Mandar Khire
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today i saw 1 documentary on TV which related to Dark matter. Example is pizza base, if pizza is dense, then pizza thrown upward with circular direction as all cooks doing with it. Pizza base safely comes to the cooks hand.
But if pizza base having many holes, & then if cook thrown, & at time of catching it, it get broken in pieces.
Like that our whole universe moving circular, & dark matter holds all galaxies, stars, planets etc.
but i seen 1 another film which shows person showing sink(having outlet center of its base) in kitchen fill with water & some floating particles. & he open the outlet. All water moving circular direction & going inside the outlet.
He trying to show relation of this with universe. he knows universe is expanding but he shows 1 glass equipment which have 2 outlet & in between them it is big circular shape.he tell universe started from big bang from one end & moving towards to other end & it have space to expand so it expand but after some time it should be compress to go outside through other end. At other end there is black hole waiting for big Crunch! & Telling in universe all things are nothing for forever existing. each have to end at its own ending time.

Again i confuse?
 
Jesper de Jong
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Mandar Khire wrote:Again i confuse?


It's a complicated story, it's not surprising if you don't understand it all the first time! ;)
 
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All this theory is another form of superstition.
The earth is flat. It only appears spherical because of the shape of our eyeballs.
So there.
 
Mandar Khire
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what code rancher thinks about Big Freeze? :?:
Existence of Dark energy is similar of Existance of God.
Because both have observed but not proved!
May be i am wrong? :!:
 
Jesper de Jong
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But the existance of God can never be proven by the scientific method, because it's a supernatural being. And God has certainly not be scientifically observed. God is a question of believing, and not of objective scientific measurement.

Dark energy is something completely different; it seems to be a characteristic of our Universe that we do not yet fully understand, and it will take the scientists time to figure out what it is, but eventually they will find out exactly what it is.

Are you sure you want to discuss a heavy subject such as the existence of God and whether or not it can be proven?

The Big Freeze is one of the theories about what will happen to our Universe in the far, far future.
 
Mandar Khire
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God is a question of believing, and not of objective scientific measurement.


Yes its right, but i have query in my mind is that, which come first Religion or Science?
At time of human being able to understand every small things in nature, what he thought about it? as example if he see water in coconut? did he thought water come in coconut by some supernatural power? & after by scientifically proved that how it comes in that! then also why people follows the old ideas till now?


Are you sure you want to discuss a heavy subject such as the existence of God and whether or not it can be proven?


As topics related to God is already discuss in this forum many times, so same discussion i do not want to repeat.

But i want discussion on topic related to astronomy, Universe etc.
At which point scientific observation turns in superstitions etc or is religion want to change its idea or statements with scientific manner? In many religions one thought common, that is "super natural power fill in whole universe",
Now astronomy says there is some thing Dark energy! so i ask!

Only i am thinking like this way or...
 
Jesper de Jong
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Religion existed before science. We human beings, with our big brains, have a natural curiosity, and we have a natural tendency to want to explain what everything that we see in our world is, how it works and where it came from. So, it's not surprising that ever since human beings started thinking, we invented stories and theories about the origin of ourselves, the world and everything we see around us. Religion comes naturally out of these stories and theories.

The most important difference between science on one side and pseudo-science, religion and other beliefs on the other side, is that science is built on a foundation of observations (empirical scientific evidence) instead of just stories invented by people.

Science and non-science start out the same way: someone sees something (for example water in a coconut) and then tries to figure out an explanation. But then there's a difference: a scientist would go further and try to invent an experiment to test his explanation. A non-scientist would stop and be content with the explanation he invented.

Science is so successful because scientists test their theories again and again, and throw away theories that are shown to be false by experiments (see Scientific method).

then also why people follows the old ideas till now?


Because thinking in a scientific way is not natural for most people.

"Dark energy" is really just a placeholder name invented by scientists for this energy that seems to be everywhere in the Universe, of which we just don't know yet what it is. Science does not yet have the answers to everything. (And maybe that's good, because it would be boring if there were no mysteries left in the Universe!). Dark energy is not something supernatural.
 
Mandar Khire
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1.Religion comes naturally out of these stories and theories.
2. thinking in a scientific way is not natural for most people.

I absolutely agree with this.
But where i live, all people involve every thing with religion!( not only one religion).
I am observing all thoughts are (may be) wrong (i am fearing to write this word) in their minds, but then also i should follow them!
Because in many only 1 person thinking apposite way or scientifically.
If i think to become person who actually fools the peoples by saying about religious things(by reading here & there) which are far far away from science then here i will be famous personality.
As in metro cities in India, many middle class people who are well literate(B.Sc/M.Sc. etc) but then also fallows wrong things. So i become very frustrate. :?:
Now a days when i watch documentary film related to space, etc & read articles one by one. My thinking inclined towards science rather religion. I am not challenge all religious peoples but i confuse lot!
At my city is no body with me to think & discuss with me about astronomy or any other science! every body running behind money! they thinks time waste if we think on this. & i am saying time waste if we all time discuss on sports,games, girls etc etc( as i also discuss these things but in limit not all time). :!: & they discuss all time it.
As a part of universe, i think my responsibility to understand at list small part of it! by mistake if i get understand what others not then i can explain them!
This i think after reading above post!
 
Jesper de Jong
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If i think to become person who actually fools the peoples by saying about religious things(by reading here & there) which are far far away from science then here i will be famous personality.


Yes, unfortunately it seems like may people are easily fooled... I always wonder how it is possible that people loose their head and completely surrender themselves to cult leaders.

At my city is no body with me to think & discuss with me about astronomy or any other science! every body running behind money! they thinks time waste if we think on this.


Science is tremendously important - without it we would not have computers, radio, television, modern medicine and lots of other things that are important to us. What about India's Chandrayaan-1 mission? Don't people talk about that in India?

Every human being has their own personal world view, their own idea about how the world works and where it came from. You build your world view gradually as you grow up. For many people, religion plays a big role, for others it doesn't. Some people think that science and religion are fundamentally incompatible (they can't both be right), others think that they can co-exist without conflict.

I am not religious myself, and I believe that everybody should have the freedom to believe whatever they want (as long as it doesn't do harm to others).
 
Henry Wong
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Religion is actually a very interesting subject. A few years ago, I had the pleasure of working with someone who majored in Theology. He was also incredibly smart and an atheist, which IMO, is a weird combo (study of theology and atheist, that is). I will miss the discussions (debates) that we used to have...

Henry
 
Mandar Khire
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What about India's Chandrayaan-1 mission? Don't people talk about that in India?


i got message(When i ask peoples in my collage, fathers office,my friends circle etc ) about this project is, This project is waste of money on moon, Gov should use this money on development of country! Already USA went there & they shown us, there is nothing except dust & stones. So again why India go there?

Religion is actually a very interesting subject.


Yes it is!That's not my major subject then also i like to discuss it so my idea will be improve!
 
Mandar Khire
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what code rancher thinks about solar eclipse? It also part of universe!
 
Maneesh Godbole
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Mandar,
I think you have completely lost your marbles.
 
Jesper de Jong
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I witnessed the solar eclipse of August 11, 1999 in northern France!

It was a very interesting experience. We were in the country side somewhere in northern France, and there were ofcourse lots of other people there to watch it. You see that on one side of the horizon it is becoming dark, and then after a few minutes the darkness comes closer. Suddenly it is totally dark, almost as dark as in the middle of the night. And after five minutes or so, it disappears again just as suddenly as it came. I've also seen a few partial solar eclipses, but they are not nearly as spectacular as a full solar eclipse. I would love to experience another full solar eclipse again someday in the future.

I can imagine that people who have no idea what a solar eclipse is might become afraid of such an experience, or associate it with superstitions.

The next one is going to be this year on July 22. There will be one over the USA in 2017.

Here's an interesting website with a lot of information on solar and lunar eclipses: http://www.hermit.org/Eclipse/
 
Mandar Khire
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I think you have completely lost your marbles.


Whats that means? i didn't understand?

I am very glad that Jesper Young shared his experience!

I can imagine that people who have no idea what a solar eclipse is might become afraid of such an experience, or associate it with superstitions.


regarding this in India many people follows very unexplainable some times funny thoughts!

 
Maneesh Godbole
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Mandar Khire wrote:

I think you have completely lost your marbles.


Whats that means? i didn't understand?



Google it. It is not what you think

Mandar Khire wrote:
regarding this in India many people follows very unexplainable some times funny thoughts!



Maybe in villages, or with illiterate masses.
I remember being taught about eclipses in 5th grade, that was in umm.. 1980.


Man has always been a curious animal, always trying to figure out why things happen the way they happen. I am not saying, man is the only curious animal, curiosity killed the cat after all.
Ever since man started to think, he has been trying to come up with theories about day to day stuff. An interesting thing about theories is that they are put to test every time a question is raised. Any phenomenon which can be described with the help of a theory or hypothesis, becomes a part of the scientific realm.
Any phenomenon which cannot be understood, mostly becomes a part of "faith" and is attributed to God.
 
Mandar Khire
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few days before i watch documentary film which subject "Did we land on moon"?
& now Chandrayaan-1 successful.
I think a persons behind opposition, or they think we didn't land! This Chandrayaan give answer for Apollo moon landing hoax accusations!
What code rancher think about this?
 
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