Dark Energy

[Into the Night]

Expansion happens when using a bong.

[Into the Night]

Of course it doesn't make sense to you, because you haven't invested the time and education to try to grasp it.

Grasp what? Your nonsense??

Your mind is stuck on 7th grade level understanding of Euclidean geometry and volume.

So now you deny Euclidean geometry. Gotit.

The universe is not expanding into anything, the way a balloon would expands into the air around it.

The universe has no known boundaries. A balloon defines a boundary (of the contents of a balloon).

It is the empty space itself between galaxies which is expanding.

How does one measure the expansion of something that has no known boundaries?

The galaxies themselves are not literally flying away from each other.

Some are. Are you aware of the concept of red shift?

Sure there are boundaries to the observable universe.

Which means nothing in this context. Straw man fallacy.

It is approximately 46 billion light years across.

About 93 billion, actually. In some directions of observation it is considerably less.

The question we don't have an answer to is what, if anything, lies beyond the observable universe.

Correct.

So... How does one measure the expansion of something that has no known boundaries?

[Into the Night]

By the particles within it. The common example I remember is a raisin bread; as the bread rises in baking the raisins all move apart.

Bread has a boundary. The universe doesn't have any known boundary.

By looking in several directions at galaxies they mostly seen as moving away from our own.

Our limits of observation have a boundary. The universe has no known boundaries.

https://www.loc.gov/everyday-mysteri...-is-expanding/

So explain how something without any known boundaries can expand.

https://dbuweb.dbu.edu/dbu/GEOL1401/...h24/img35.html

The elastic band has a boundary.

http://hyperphysics.phy-astr.gsu.edu...ro/hubble.html

Any instrumentation, including the Hubble telescope, does not answer my question. You are evading.

https://www.jpl.nasa.gov/edu/teach/a...ding-universe/

How does one measure the expansion of something with no known boundary?

[Cypress]

Grasp what? Your nonsense??

So now you deny Euclidean geometry. Gotit.

The universe has no known boundaries. A balloon defines a boundary (of the contents of a balloon).

How does one measure the expansion of something that has no known boundaries?

Some are. Are you aware of the concept of red shift?

Which means nothing in this context. Straw man fallacy.

About 93 billion, actually. In some directions of observation it is considerably less.

Correct.

So... How does one measure the expansion of something that has no known boundaries?

You asked how something with no boundaries could expand.

I replied that boundaries have nothing to do with it.

It is the empty space between galaxies which is itself expanding.


Expansion of the universe is estimated by measuring the wavelengths of light reaching us from different galaxies. Wavelengths are stretched, or red shifted, the faster they are moving away from us. There is some kind of mathematical modeling involved.


You should enroll in an introductory cosmology course if you want learn about this stuff.

[Doc Dutch]

You asked how something with no boundaries could expand.

I replied that boundaries have nothing to do with it.

It is the empty space between galaxies which is itself expanding.


Expansion of the universe is estimated by measuring the wavelengths of light reaching us from different galaxies. Wavelengths are stretched, or red shifted, the faster they are moving away from us. There is some kind of mathematical modeling involved.


You should enroll in an introductory cosmology course if you want learn about this stuff.

No worries. You get it. I get it. Sybil doesn't get it. What's wrong with this picture?

[Cypress]

No worries. You get it. I get it. Sybil doesn't get it. What's wrong with this picture?

I feel like we should be charging him tuition fees at this point.

[Doc Dutch]

I feel like we should be charging him tuition fees at this point.

LOL. Usually I ignore him unless he starts harassing me then I harass back.

[Into the Night]

You asked how something with no boundaries could expand.

That's right. You can't seem to answer this question without going into nonsense.

I replied that boundaries have nothing to do with it.

If there are no boundaries, how can you describe an expansion?

It is the empty space between galaxies which is itself expanding.

How do you measure the expansion of something that has no known boundaries?

Expansion of the universe is estimated by measuring the wavelengths of light reaching us from different galaxies.

A couple of galaxies is not the universe.

Wavelengths are stretched, or red shifted, the faster they are moving away from us. There is some kind of mathematical modeling involved.

No mathematical modelling required. Red shift is a normal effect of the wave properties of light.

You should enroll in an introductory cosmology course if you want learn about this stuff.

Assume I never took one. How does one measure the expansion of something that has no known boundaries?

[Into the Night]

No worries. You get it. I get it. Sybil doesn't get it. What's wrong with this picture?

Can't answer the question, eh? You just want to troll and insult people. Guess that's all you know how to do.

[Into the Night]

LOL. Usually I ignore him unless he starts harassing me then I harass back.

Lie. Trolling. You spend almost every one of your posts throwing insults at people.

[Doc Dutch]

♪♬♪ Three little fishies in a ittie bitty pool ♪♩♬♪

What's wrong with this picture, Sybil? Since you always fail to answer my other questions, I'm not holding my breath that you'll be able to answer this one either, kiddo.

[Doc Dutch]

I feel like we should be charging him tuition fees at this point.

I doubt it's a matter of cost since the answer is easily obtained by Googling "The Expanding Universe Theory" as previously discussed. A wealth of factual information for those interested. Anything from a reputable science, educational or government groups can provide the basics...for those sane and interested enough to look.

Example: https://www.space.com/52-the-expandi...-to-today.html
Our expanding universe: Age, history & other facts
The evolution and content of our ballooning universe

EXPANDING UNIVERSE
In the 1920s, astronomer Edwin Hubble discovered the universe was not static. Rather, it was expanding; a find that revealed the universe was apparently born in a Big Bang.

After that, it was long thought the gravity of matter in the universe was certain to slow the expansion of the universe. Then, in 1998, the Hubble Space Telescope's observations of very distant supernovae revealed that a long time ago, the universe was expanding more slowly than it is today. In other words, the expansion of the universe was not slowing due to gravity, but instead inexplicably was accelerating. The name for the unknown force driving this accelerating expansion is dark energy, and it remains one of the greatest mysteries in science.

[Into the Night]

I doubt it's a matter of cost since the answer is easily obtained by Googling "The Expanding Universe Theory" as previously discussed.

Google is not a source. It's an indexing system.
You still cannot answer. You are quite a job tapdancing around it and evading, but the question still remains.

EXPANDING UNIVERSE
In the 1920s, astronomer Edwin Hubble discovered the universe was not static. Rather, it was expanding;

How can you measure the expansion of something that has no known boundaries?

a find that revealed the universe was apparently born in a Big Bang.

So what caused the so-called 'Big Bang'? Is that something outside the universe? If that's true, the 'Big Bang' is not about the universe.

Why does the Universe have to have a beginning?

After that, it was long thought the gravity of matter in the universe was certain to slow the expansion of the universe. Then, in 1998, the Hubble Space Telescope's observations of very distant supernovae revealed that a long time ago, the universe was expanding more slowly than it is today.

How to measure the expansion of something that has no known boundaries?

In other words, the expansion of the universe was not slowing due to gravity, but instead inexplicably was accelerating. The name for the unknown force driving this accelerating expansion is dark energy, and it remains one of the greatest mysteries in science.[/I]

This isn't science. It's religion. Indeed there are many fundamentalists in this religion that try to prove it True.

Science is a set of falsifiable theories. The Theory of the Big Bang is not falsifiable. Science has NO theories about past unobserved events.

[Doc Dutch]

♪♬♪
To dream the impossible dream
To fight the unbeatable foe
To bear with unbearable sorrow
To run where the brave dare not go
♪♬♪♩

Awesome, dude. Have you considered taking your act on the road?