Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: ron123456 on 15/05/2020 20:11:36

Title: Why is Dark Energy considered only internal to the Universe?
Post by: ron123456 on 15/05/2020 20:11:36
When a tightened balloon expands above a heat source, do the interior furthersome molecules closer to the balloon surface expand more:at a faster accelerated rate,  compared to the molecules deep within the balloon? Perhaps dark energy (empty space's repulsive force) is generated exterior to the universe despite the interior's missing mass within?
Title: Re: Why is Dark Energy considered only internal to the Universe?
Post by: Bored chemist on 15/05/2020 23:36:49
Why is Dark Energy considered only internal to the Universe?
Because the word "universe" means everything, and there isn't anything external to  that
Title: Re: Why is Dark Energy considered only internal to the Universe?
Post by: Bill S on 16/05/2020 13:43:39
Yet again, we run into the problem of definition. Multiverse theories must conflict with your definition, and although I would content that your definition is correct, common usage must admit others.  This is why I tend to favour the "Universe, universe, cosmos" usage.  There will always be nit-pickers who find fault with this, but it does obviate some potential confusion. 
Title: Re: Why is Dark Energy considered only internal to the Universe?
Post by: Bill S on 16/05/2020 13:56:49
Quote from:  OP
do the interior furthersome molecules closer to the balloon surface expand more:at a faster accelerated rate,  compared to the molecules deep within the balloon?

Definition again.  What do you mean by expanding “at a faster accelerated rate”?  Do you mean faster and/or with greater acceleration relative to molecules in different positions; or do you mean relative to the amount of heat energy each receives? 
Title: Re: Why is Dark Energy considered only internal to the Universe?
Post by: ron123456 on 17/05/2020 16:52:47
I will attempt to move this post to "New Theories" forum in a couple of days for further discussion...Yes, I was talking a string theory multiverse.
Title: Re: Why is Dark Energy considered only internal to the Universe?
Post by: Kryptid on 17/05/2020 18:25:26
When a tightened balloon expands above a heat source, do the interior furthersome molecules closer to the balloon surface expand more:at a faster accelerated rate,  compared to the molecules deep within the balloon?

The air in the balloon closest to the heat source will warm fastest.
Title: Re: Why is Dark Energy considered only internal to the Universe?
Post by: ron123456 on 18/05/2020 15:04:26
…..ah!...leaving this post here as opposed to New Theories...… What I was trying to express, is that the other universes of a multiverse, may have a greater external attractive influence on our universe's accelerated expansion than our universe's repulsive inflation's influence itself....