My point is what if the volume is infinitely small?
Then the momentum goes to infinity.
https://en.wikipedia.org/wiki/Uncertainty_principle
No, I don't understand Quantum Mechanics either. No shame in that. 😀
I was worried about that problem. 🙂
So Einstein was right, antimatter does fall down and not up.
Gravity still makes sense - for now!
My point is what if the volume is infinitely small?
Infinitely small doesn't represent any actual value. It only represents the idea that a series of values can get smaller, tending toward zero.
There is no such thing as a volume that is "infinitely small", hence the energy density remains constant in your scenario.
@Galu,
Puts on the voice of the Bard of Stratford upon Avon, Warwickshire. Wherein I used to dwell. Master William Shakespeare. "Thou speaketh rubbish on this occasion!". A rare letdown.
Hath thou not read "The Ambidextrous Universe" by Martin Gardner?
https://en.wikipedia.org/wiki/Martin_Gardner
A top Mathematician, even if I usually solved his puzzles quickly.
It's a chirality problem:
https://en.wikipedia.org/wiki/Chirality_(physics)
Puts on the voice of the Bard of Stratford upon Avon, Warwickshire. Wherein I used to dwell. Master William Shakespeare. "Thou speaketh rubbish on this occasion!". A rare letdown.
Hath thou not read "The Ambidextrous Universe" by Martin Gardner?
https://en.wikipedia.org/wiki/Martin_Gardner
A top Mathematician, even if I usually solved his puzzles quickly.
It's a chirality problem:
https://en.wikipedia.org/wiki/Chirality_(physics)
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Thou speakest rubbish on this occasion!
On what occasion dost I speaketh rubbish?
I speak so much rubbish in this thread that you will have to be specific!
It's a chirality problem
Another one of your edits after I have replied to your post!
Chiral symmetry breaking is mentioned in my link in post #1,853, if that is to what you refer.
I'm trying to understand how there can be 120 orders of magnitude difference in the vacuum energy prediction between Einstein on the one hand and the Quantum mechanicians on the other.
120 orders of magnitude. Apparently the worst prediction in all of science.
Something is amiss.
120 orders of magnitude. Apparently the worst prediction in all of science.
Something is amiss.
A rare letdown.
A not so rare letdown is when you post images and links, but supply no explanation as to why you have posted them.
Where possible, I make the effort to connect with the subject matter you introduce and supply missing context.
Don't know why I bother, other than I am learning a lot more about physics by doing so. However I generally avoid the advanced maths! 😱
I'm trying to understand how there can be 120 orders of magnitude difference...
To the boffins, this “cosmological constant problem” remains unresolved.
So there seems little chance of mere mortals like us coming up with an understanding.
I am severely disturbed by events at one of my favourite Space Telescopes: on Hawaii
https://subarutelescope.org/en/
Apparently an ACCIDENT has occurred...
I suspect sabotage. Who was in the vicinity at the time?
Draw your own conclusions. I have already decided who is guilty. 🙂
https://subarutelescope.org/en/
Apparently an ACCIDENT has occurred...
I suspect sabotage. Who was in the vicinity at the time?
Draw your own conclusions. I have already decided who is guilty. 🙂
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Clearly the boffins are not boffins 😉To the boffins, this “cosmological constant problem” remains unresolved.
So there seems little chance of mere mortals like us coming up with an understanding.
Hell, can you imagine as an engineer saying to your boss ‘Johnny and I disagree by 120 orders of magnitude’
I suspect sabotage.
A dastardly act of vandalism performed on the Subaru telescope by the Japanese Seven Sisters gang no doubt. 😉
Clearly the boffins are not boffins 😉
I quote from Scientific American: https://www.scientificamerican.com/...onstant-is-physics-most-embarrassing-problem/
Not everyone agrees that this is a problem in need of fixing. The cosmological constant is technically just a constant of nature, a number in an equation that can take on any value, says Sabine Hossenfelder. “All these debates about why does it have the value it has are not scientifically good questions,” she says. Nothing about quantum field theory was falsified when its prediction didn't match astronomical measurements, and the theory is still as useful as it ever was. “I think most people in the cosmology and astrophysics community believe it's a problem because they've been told that for a long time [since 1967].”
Yet many physicists cannot let it go.
A not so rare letdown is when you post images and links, but supply no explanation as to why you have posted them.
Where possible, I make the effort to connect with the subject matter you introduce and supply missing context.
Don't know why I bother, other than I am learning a lot more about physics by doing so. However I generally avoid the advanced maths! 😱
On the subject of Greek Philosophy many things have been said:.
"Leave your ego at the door".
"Seek not to make a penny from Mathematics".
https://en.wikipedia.org/wiki/Pythagoras
But evidently an inclusive society. FWIW, I came top in Greek at school. So have bragging rights. 🙂
LOL Try Kstars instead. Which can also control a telescope but probably only under Linux for that use.ephemerides
Ephemerides sounds like a Greek Mathematician to me.
Whereas this is clearly an English crossword clue.
Involving "flowers" or "bloomers".
Life is too short for crossword puzzles, IMO. 😀
Whereas this is clearly an English crossword clue.
Involving "flowers" or "bloomers".
Life is too short for crossword puzzles, IMO. 😀
The BBC Universe was interesting again last night. Plenty on what this interesting beast has found
https://en.wikipedia.org/wiki/Gaia_(spacecraft)#
Maybe some detail on this particular finding
https://en.wikipedia.org/wiki/Radcliffe_wave
Need to look for more to be sure.
Plenty of running water as usual plus an idea on formation of the sun. Caused by a satellite galaxy passing through the milky way which generated a period of star formation.
😵 Seems the universe could expand at a rate greater than the speed of light,
One of the problems with an expanding universe is radio waves that are rather hard to detect 😉 What happens when red shifted to zero. However they are trying but seems to be the usual red shifted hydrogen lines so just what are those radio jets?
The more reading links are needed.
https://en.wikipedia.org/wiki/Gaia_(spacecraft)#
Maybe some detail on this particular finding
https://en.wikipedia.org/wiki/Radcliffe_wave
Need to look for more to be sure.
Plenty of running water as usual plus an idea on formation of the sun. Caused by a satellite galaxy passing through the milky way which generated a period of star formation.
😵 Seems the universe could expand at a rate greater than the speed of light,
One of the problems with an expanding universe is radio waves that are rather hard to detect 😉 What happens when red shifted to zero. However they are trying but seems to be the usual red shifted hydrogen lines so just what are those radio jets?
I employ Ubuntu Linux myself:
https://ubuntu.com/
Being a Bear of small brain, but absolutely excellent at Physics....
Tiggers like Roo's Malt Extract, AFAIK. This is what I am getting from Google on the @AjohnL link:
Your mileage may differ! This is targeted advertising. 😎
https://ubuntu.com/
Being a Bear of small brain, but absolutely excellent at Physics....
Tiggers like Roo's Malt Extract, AFAIK. This is what I am getting from Google on the @AjohnL link:
Your mileage may differ! This is targeted advertising. 😎
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I think that is a youtube trick.This is targeted advertising
LOL to get to the more reading links watch the video on youtube.
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