geordief

It was really only curiosity I am just using whatever materials I have to hand and was wondering incidentally whether a buried white material might still keep the heat out. I am just a bodger on a leaky roof🙂

Suppose I coat a surface with 2 layers of paint -one is black and the other white. If the white layer is underneath the black layer and the top (black) layer is exposed to sunlight, does the white layer work as a thermal insulant? I can see the black layer gets hot but does this heat transmit to the surface across the white layer beneath as well as it would if the white layer was not there? (So does a layer of white paint insulate against the transmission of heat when we are not talking about radiation but transmission via direct contact?)

There is apparently a papier machė section that seems interesting .

Well he did say it had never happened before.(and we know he has record recollection)

Not going down the whataboutery road.

If others pay neither matter.

For a totalitarian regime the price is immaterial. No one is talking about imperial overreach. Does it come into play?(in theory Taiwan would presumably like to take over the mainland since there was no official end to the Chinese civil war. How long is the Communist Party of Chima going to maintain the allegiance of the population? Is that (those) populations naturally authoritarian or ate they just holding their tongues for now?

We have to up our humour content Reported.

Yes,I heard that last night too. Other opinions(not that your reference is an "opinion ") are that if this warrant was not conducted properly, or is obviously trivial in nature then it hands the presidency to TLG on a plate. I tend to disagree (rose tintedly?) and think he would still be beaten in a fair vote -even then. This is some mf of a clif hanger ,though I have to say. Richard Nixon eat your heart out.(can't wait for the box set the way things are going)

This report,as referenced on BBC and Reuters https://www.rusi.org/news-and-comment/in-the-news/exclusive-russian-weapons-ukraine-powered-hundreds-western-parts-report-says is saying there is a window to cut off the export of high tech parts to the Russian war machine It says the loopholes need to be fixed now.

Is that just a mathematical convention?Could it just as well be the other way round ? (positive energy could be considered negative and vice versa) Or does it have to be that way?

Is the the energy that is bound up in matter (= its mass?) bound up in the form of the various bonds between its constituent parts? If so ,is that a bit like Cheshire cat territory where all that was left of the cat was its grin? I think Lewis Caroll was also a foremost mathematician of his day before falling out of favour for some reason I don't recall.

Yes I think it is accepted that ,as the universe expands galaxies ,one by one will recede from our point of observation at greater and greater speeds If we look closely enough and long enough I assume that we will ,at least in theory catch one of these galaxies in the process of actually disappearing from view (when its speed of recession exceeds the speed of light) At that point we will conclude that that particular galaxy we no longer see is still there , but no longer as a part of the observable universe Now it would be a part of the "unobservable universe "-and so "beyond the observable universe" We cannot see anything beyond the observable universe but can deduce its existence in an empirical way Does that clarify what I was saying? (Hope I didn't sound like Mystic Meg in that previous post😀

What might be the overall energy of the observable universe? Is it possible that ,to an approximation it might add up to zero? Since there is a universe beyond what we can observe that may mean we can never know the answer but are there any models that could be used to answer the question? (Are there as many possible answers to the question as there are frames of reference?)

Nowhere ,but it is on the back foot and under attack. First priority is to keep the democratic gains it has acquired over the years.

I meant defending from within.

Authoritarian regimes will just remain fans (if with the usual competing interests) Democracies seem to have enough on the plates just defending their own political systems. What would be good would be if the Chinese people saw the monkey on their back.

Do we have any empirical evidence as to which of the different forms of democracy are most effective in truly representing the population -and which do so without pandering to their "worse"(eye of the beholder and all that) qualities. For example ,voting is obligatory in some countries Does that seem to make a positive difference?(not sure I am enamoured of the Australian political system-or the policies that have been pursued of late)

I am still wondering how one calculates the new waveform 'or rather what is the relationship between the "ingoing" waveform and the"post interaction" waveform? Is it again a probabilistic relationship? Is there any relationship as such?

Should our politicians concern be to just get reelected? After all they will only get to be reelected if enough voters approve of what they have done in office. Is it not good enough for them to just fulfil that commitment,(to be sufficiently popular)? Do they have to be "better" than the people who voted them in or it it their highest duty to represent them warts and all?(men of the people or the vanguard of the people?)

What happens when the waveform "collapses"? Is a new waveform created? What ,then is the relationship of the new waveform to the old? There is no throwing of the dice in this process ,is there?

Have noticed fewer moths this year in the garden or inside the house.Even the cabbage whites I have hardly seen. Hundreds upon thousands of flying ants and a bare minimum of ladybirds No shortage of dragon flies ,young ones around this time-or young frogs in the weeds. (We got none of that heatwave around here ,if that would account for anything)

Where did you see it ?(it looks a bit worse for wear now😉

So it seems possible (ie not ruled out) that the acceleration could come to a halt and become negative ,leading to a big Crunch -even though, as I understood it at the time the big Crunch idea fell out of favour when the accelerating expansion was first observed. Is that fair?

How did they measure that the actual acceleration was accelerating? It sounds very hard to me.