Everything posted by John Cuthber
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climate change
OK, but we have to ask what do the "other side's" models say? The big energy companies have plenty of money to spend on looking at this, and they have an obvious interest in doing so. What do their predictions look like? Well... https://www.theguardian.com/business/2023/jan/12/exxon-climate-change-global-warming-research
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Should TikTok Be Banned in the US?
TBH, when I first saw this topic I didn't pay much attention. I don't use it and I'm not in the USA so a ban wouldn't make any difference to me. I assume I'm not the only one But the subject also got flagged by the IT security people at work so I was paid to look at it They posted a link to this https://www.theregister.com/2023/03/27/china_crisis_is_a_tiktoking/ and the problem isn't really Tiktok it's scarier than that. The article is worth a read.
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Can you distinguish between a British, Australian and American?
That's why we have proper mustard and we at least popularised and possibly invented invented the chicken tikka masala. It's pretty clear that we invented this https://en.wikipedia.org/wiki/Phall
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Florida (split from The Official JOKES SECTION :))
Apparently not any more. "Florida (split from The Official JOKES SECTION :))"
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Can you distinguish between a British, Australian and American?
So, you don't like being told that you are wrong. Can you expand on that- maybe give a link to what you are on about?
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Can you distinguish between a British, Australian and American?
That's one problem, and is hard to deal with. This is the easy problem.
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Should TikTok Be Banned in the US?
If the USA and Capitalism are so great, they don't need to ban tiktok. They just need to launch a better platform- made in the good old U S of A.
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Can you distinguish between a British, Australian and American?
That's still wrong, even when you add the reference.
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Can you distinguish between a British, Australian and American?
The Scots are from Britain and you could have a long argument about the Irish. The idea of "European Americans" is also a bit daft (choose one or the other) but that's a different question. The country can't really afford either.
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Can you distinguish between a British, Australian and American?
Is Boris Johnson English or American? He was born in the USA but moved here and got UK citizenship. Did his appearance suddenly change to match? His situation is not rare.
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What's the major difference between cheap and expensive wine?
I don't know if it's good, but it's an unusual wine.
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Longer 'lasting' color...
Carbon black is cheap and almost indestructible. It will also protect the underlying material from light/ UV. Aluminium paint does the best job of thermal isolation.
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How did we learn a language?
Does this copy of the lyrics help? When the Tower of Babel fell It caused a lot of unnecessary Hell. Personal rapport became a complicated bore And a lot more difficult than it had been before when the Tower of Babel fell. The Chinks and the Japs and the Finns and Lapps were reduced to a helpless stammer. And the ancient Greeks took at least six weeks to learn their Latin grammar. The guttural wheeze of the Portuguese filled the brains of the Danes with horror. And verbs not lust Caused the final bust in Sodom and Gomorrah. If it hadn't been for that bloody building falling flat I should not have had to learn Italiano And keep muttering Si, si and Mi chiamano Mimi Like an aging metropolitan soprano! I should not have had to look at this ghastly little book Til my brain becomes as soft as mayonnaise is. Messrs Hugo and Berlitz Must have torn themselves to bits Dreaming up so many useless, useful phrases. Pray tell me the time It is six, it is seven It's half past eleven, It's twenty to two. I want thirteen stamps. Does your child have convulsions? Please bring me some rhubarb. I need a shampoo. How much is this hat? I desire some red stockings. My mother is married. These boots are too small. My aunt has a cold. Shall we go to the opera? This meat is disgusting. Is this the town hall? How much is this ribbon? It's cheap. It's expensive. What very fine linen. What pretty cretonne. What time is the train? It is late. It is early. It's running on schedule. It's here. It has gone. I've written six letters. I've written no letters. Please fetch me a horse. I have need of a groom. This isn't my passport. This isn't my hatbox. Please show me the way to Napoleon's tomb. The weather is cooler. The weather is hotter. Pray fasten my corset. Please bring me my cloak. I've lost my umbrella. I'm in a great hurry. I'm going. I'm staying. Do you mind if I smoke? This man is the purser. This isn't my cabin. This egg is delicious. This soup is too thick. Please bring me a trout. What an excellent pudding. Pray hand me my gloves. I'm going to be sick.
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What's the major difference between cheap and expensive wine?
I can't see a plausible mechanism for getting rid of the trichloroanisole. It's important to remember that there are two sorts of drinks: Those you wish to drink Those that you do not wish to drink.
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How did we learn a language?
The great advantage of living in the UK. You can say "it rained yesterday" to illustrate the meaning of the word, without being confused by the idea that we might have the same weather two days running. I can, in general, point at the side of something. The dog is at the side of the tree. Is there a rule that says that any long discussion about language ends up full of phrases like this?
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Longer 'lasting' color...
OK, pretend I was talking about the bricks.
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Longer 'lasting' color...
Yes and no. The molecule absorbs energy and some electrons get shuffled round. But ordinarily, those electrons manage to transfer their energy to vibrations of the molecule and it's dissipated as heat. So the molecule isn't usually permanently damaged. We deliberately chose molecules for their ability to stand up to this process even when it's repeated many times. Most fading by sunlight is actually caused by UV rather than visible light. UV photons carry enough energy to break bonds and that's not so easy to recover from. On the other hand, as has been pointed out, those are clay tiles. The pigment is essentially iron oxide and even if that molecule gets damage, the only plausible products are iron and oxygen. If any iron is produced, it wont be long before it rusts back to the original orange/ brown colour. So it's pretty much permanently light fast. The discolouration is probably, as SJ says, efflorescence. (I can't absolutely rule out leaching by acid rain or something if the place is in a chemical works or something.)
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Childbirth deaths
There are two interesting* things; 1 the USA seems to be doing badly, in spite of paying more for healthcare (And it has got worse). Maybe they should change the system. 2 there are differences between various bits of the population. I'd be interested to see what other factors are in play. How does maternal age relate to maternal death rate? How about number of previous births? (And come to think of it, how to those relate to infant mortality). * I'm not saying they are only interesting; they may also be scandalous or frightening, but they are interesting. https://en.wikipedia.org/wiki/List_of_countries_by_maternal_mortality_ratio
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Difference between titrating for ppt and measuring pH of acid
The simple answer is buffering. https://en.wikipedia.org/wiki/Buffer_solution If you have 5 ppt of citric acid in one wine and 5ppt of citric acid and also 5 ppt of sodium citrate in another wine they will have very different pH values but (relatively) similar tastes. Or, at least that's what I'm told about the tastes; I never checked.
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What's the major difference between cheap and expensive wine?
Oops! Someone changed the rules while I wasn't looking.
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What's the major difference between cheap and expensive wine?
An important factor is that stronger wines are more expensive (for tax reasons) and also more harmful to health.
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Today I Learned
In case anyone wondered, yest this does belong with the jokes. The Equipment The equipment used in these two sports is another major difference between them. For a start, the pin pong table, about 3.7 mm in diameter, is slightly larger than the table tennis court, which is only 3.4 mm. Source: https://pingpongacademy.org/ping-pong-vs-table-tennis/ I'm just not sure if it's deliberate.
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Enough of crackpots, how would you have got on in an 1859 school exam ?
I must have been half asleep when I posted that or something. The longitude- almost exactly 30 degrees- is the one that matters . The time difference should be almost exactly 2 hours. Today I think the answer is 3 hours, but that 's largely political.
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Is homogenous viscosity a good indicator for general homogeneity in mixing?
That seems sensible to me. Even if the materials have the same viscosity to start with, a mixture may have a different viscosity (anyone who has seen an engine where water has got into the oil will know that; the product is much more viscous than the components even though no chemical reaction takes place). So, if the viscosity is homogeneous, the mixture must also be. But there's a catch 22 here. If your model doesn't work, then using a modeled property- like viscosity- won't be a good test. If you could model the density (which is usually "better behaved"than viscosity) it would be better.
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Enough of crackpots, how would you have got on in an 1859 school exam ?
7/8 and, had I been a Victorian schoolkid, I might have swotted up on lowest common multiples. That might not have been a time zone. It's pretty close to exactly 4 hours. " St Petersburg, Russia Lat Long Coordinates Info The latitude of St Petersburg, Russia is 59.937500, "