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I know of no coordinate system that puts an object with redshift 10 at 60 BLY away. Such a distant object is simply outside the visible universe and thus cannot be seen at all.Quoteif redshift of 1 represents a distance of 6BLY why a redshift of 2 Can't represent a distance of 12BYL while a redshift of 10 Can't represent a distance of 60 BLY?If you are talking about where they are now, that sort of extrapolation may be feasible
- bearing in mind that "where" is a measure of distance, and "now" is a measure of time
- and both are strongly interlinked in 4D spacetime
- especially when spacetime is warped by a huge mass (like the whole universe)
But if you are talking about where they were when they emitted the light that we see now, that doesn't work so well.I disagree with the relevance of local particle speeds when talking about recession rates. The speed and energy of a proton in the LHC is expressed using a Minkowski coordinate system in which velocities add the relativistic way, and no proton can move at >= c. Such a coordinate system is completely misrepresentative of the large scale geometry of the universe where change in proper separation of objects over time (not to be confused with regular velocity, despite the similar units) is very much observed at rate far in excess of c.
- It has to do with the behavior of objects as they approach the speed of light[
- Fortunately, that is something we can study on Earth
- The LHC can accelerate protons up to 6.5 TeV.
- The input to the LHC is the SPS, which can accelerate protons up to 0.45TeV. At this energy, the protons are travelling at almost the speed of light.
- The LHC increases this energy by a factor of 15 - but the speed of the protons does not increase by a factor of 15. In fact, their speed hardly increases at all
So, the maximal distance that we can really measure is 1.7BLYNo website said that. The maximum distance that we can measure depends on how you do the measurement. I mean, what's the distance between London and Paris? Has anybody ever actually stretched a tape measure between the two? You can't see one from the other, so shining a light and timing the round trip doesnt work either. So what method are we using to measure this theoretical 'max distance'? The answer depends on that.
There really isn't a population of molecules present in the plasma.https://www.researchgate.net/publication/292072580_Molecular_emission_in_the_edge_plasma_of_T-10_tokamak
Pardon my ignorance, but could you expand on that a bit?The m and v stand for mass and volume (you also see w for weight which is pretty much equivalent to mass unless your lab is somewhere odd.Quote%m/vDoes this mean %mass per volume? ...like grams per liter?
Or %moles per volume? ...like moles per liter?
What is the % a fraction of?Quote%m/mDoes this mean %mass per mass?
...like grams per 100g total?
For completeness, I recall seeing %v/v: Is this % volume per volume,like ml per 100ml total?
...It's been a long time since I've studied any chemistry!
Vanadium is not one of the more common elements (and lithium is rather rare).We have about three times as much vanadium as zinc and roughly a thousand times more vanadium than iodine.
There have been some research investigation into cheaper alternatives to vanadium, like Zinc Iodide
The trumpet shape has been around for a while. Eg. https://www.independent.co.uk/news/science/the-universe-is-not-round-say-scientists-it-is-shaped-like-a-trumpet-560046.html.OK, Mr Arthur gets a good prize for bad reporting of science. No scientist claims the universe is shaped like a trumpet, an object with edges. The bit about finite volume comes probably from Gabriel's horn ( https://en.wikipedia.org/wiki/Gabriel%27s_Horn#:~:text=Gabriel's%20horn%20(also%20called%20Torricelli's,surface%20area%20but%20finite%20volume.&text=The%20properties%20of%20this%20figure,Torricelli%20in%20the%2017th%20century. ) a 3D shape which has zero to do with the shape of the universe (a 4D thing).
I have always assumed it was a “mathematical” model, intended as an aid to understand; rather than something that was meant to be taken too literally.
No one will be surprised that I have grave reservations about the physical demonstration of:-
“The thin end would be infinitely long - but so narrow that it would have a finite volume.”
- So sunlight passing through water droplets in the air are diffracted by (slightly) different anglesIn the case of rainbow, it is refraction instead of diffraction which produces color separation.
- This separates out sunlight into its constituent rainbow of colors
at a temperature of 0.1C, you can have a container with liquid water and water vapor at a pressure around 0.6% of normal Earth atmospheric pressure (if I am reading this correctly...).Close...
I would love to see the expression on Dr Birx's face when Trump suggested internal use of disinfectant and UV light to treat coronavirus! Then looked at him for confirmation on national TV....OK
If you can find a video showing Birx and Trump at the same time, please post it here!
Thanks but I didn't say by human ear.