Everything posted by John Cuthber
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Negative times negative makes positive
Repeatedly taking away a debt is the same as repeatedly adding a credit.
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REVIEW INVITATION : Awakening the Sleeping Giant: Rediscovering Archimedes' Density Method for Fingerprinting of Multicomponent Alloys
Copper is less dense than silver. Gold is more dense than silver. Therefore there is a binary alloy of copper and gold which has exactly the same density as silver. We can call it "match" because it has a density that matches that of silver. An alloy of mainly copper with a little gold will be slightly more dense than copper. We can refer to this alloy as "light" and similarly we can have an alloy, which we can call "heavy" made from mainly gold with a little copper. If we start with pure silver we can add a small amount of heavy which will raise the density, and then we can add light to reduce the density. The overall effect will be to produce an alloy which has the same density as silver and which is a ternary alloy. We can repeat that process and get a second alloy- again containing all 3 metals and which has exactly the same density as silver. It will have a different composition from the first one. And we can , add further amounts of light and compensating amounts of heavy until we get arbitrarily close to "match". All these alloys have the same density as silver. How does your method distinguish among them? (The option of extending this to have an alloy with, for example, a density half way between that of gold and silver or whatever also exists)
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Harris vs Trump;
I think we should tell everyone that. And then the Reps will get complacent and teh Dems will get determined. Anyone remember how the UK's Brexit referendum played out? We all knew that it would fail...
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OT from Radioactivity
I see the OP thinks misquoting me is helpful. Mind you; he's not entirely wrong. When I asked how he planned to do meaningless magic, I was implicitly pointing out that he was talking kak. But while I will give him the benefit of the doubt and assume his use of "Kak" means "why" (Maybe Russian , Ukrainian Polish or whatever) , my use of it is more like the Dutch.
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Harris vs Trump;
I don't know who will win. I don't thinks anyone does. But here's a hint about who I would like to win.
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One of the most pointless phrases to learn in another language
There's this https://www.atlasobscura.com/places/wilhelmina-ice-pole-sitting-contest and also everyday life in Scotland.
- Radioactivity
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One of the most pointless phrases to learn in another language
- Gun Owners of America informs me of a new hunting ban ballot measure in Colorado: the mountain lion
"Hunting bear and other fur-bearing animals with hounds is a romantic adventure." Stalking is when you go for a romantic walk with someone and only one of you knows about it.- Cat Astrophe - person rejects professional vet assistance, asks me
I'm puzzled. What does that mean? They can't afford it?- Is it possible to generate sulfuric acid from sodium sulfate without special membranes or special processes?
"Is it possible to generate sulfuric acid from sodium sulfate without special membranes or special processes?" Define "special". Roast the sulphate with charcoal at high temperatures to reduce it to sulphide. Dissolve that in water. Set up some wine or beer making and lead the CO2 that it produces into the sodium sulphide solution. That will form hydrogen sulphide. Oxidise the hydrogen sulphide to sulphur dioxide by burning it in air. Oxidise the sulphur dioxide either with air (as per the contact process) or with ozone, to get sulphur trioxide and allow that to dissolve in water and you will have sulphuric acid. Is any of those steps "special"?- EVA material doubt
https://en.wikipedia.org/wiki/Ethylene-vinyl_acetate I don't know. The polyurethane foams were notorious for doing that-but slowly. So, the foam would probably last longer than the HDD- Why do people demand unnecessary evidence for a God?
You could do that, but you would have to be an idiot. We have coins with his picture on it. So, all you really did there was show that you don't understand the nature of evidence.- Most dangerous chemicals?
By about 17% Probably not going to make a difference.- Changes in high school education and impact on colleges.
How often is this useful in a world where you have "always" a phone with you?- Exploding Pagers Injure Hundreds in Lebanon
Typo. "start" a thread. Not sure that "stat" is a verb.- Exploding Pagers Injure Hundreds in Lebanon
It's not obvious to me that I did, and I'm the only one here whose user name is John. I might choose to provide stats like these. https://countingthekids.org But it's off topic. (It's a little out of date) And I thought I'd been sarcastic enough when I said this- supercooled mercury /magnetic field
The problem doesn't seem to be your English.- Exploding Pagers Injure Hundreds in Lebanon
Possibly because this thread is called "Exploding Pagers Injure Hundreds in Lebanon". My personal view is " a plague on both their houses, but that's beside the point. As far as I'm aware, that "technique" is novel and that's why there's a thread about it. Feel free to stat a "even during negotiations for a cease fire, Hamas is still killing kidnapped hostages from last October" thread.- Exploding Pagers Injure Hundreds in Lebanon
I guess String Junky thinks Hamas is 'civilized society'. Israel is deliberately blinding people- but not using lasers- so it's allowed under the conventions of war; on a technicality. It used booby traps but not on food, animals, toys or munitions, so, again, on a technicality, it didn't break the conventions on warfare. As such, to say it is "dragging the notion of military conflict into the gutter" is a reasonable assessment. And " it wants to sit at the table with civilised society". And those statements are at odds with one another (or they should be). And they are both true, even if Hamas suddenly turn into pine trees. It doesn't matter if Hamas are civilised or not, in this context. Hamas being "bad", or even "worse", does not stop us commenting adversely on what Israel is doing.- supercooled mercury /magnetic field
If a question is so badly written as to be incomprehensible, is it a stupid question?- Exploding Pagers Injure Hundreds in Lebanon
How sure are you about that and would you like to discuss how it applies to the recent presidents of Russia, the USA and China?- Ethics of pornography and sexually-suggestive content
That depends on your definition. Ask the Taliban what they think of a car advert featuring a young woman in a short dress draped across the vehicle. The Brits are Europeans (albeit depraved or corrupted by American influence.)- Exploding Pagers Injure Hundreds in Lebanon
Just checking. Do you mean the prisoners held by criminals in Gaza, or do you mean the whole civilian population of Gaza which has been sealed off and strafed by the IDF? "It's not like more than 80,000 Israelis have been displaced from their homes thanks to Hezbollah." Cough! and so on.- Bulletproof Airplanes
I don't think the calculation is the the tricky bit. By the mid 40s, people had worked out how to avoid them. If you fly "random" zig zags, then the computers launching missiles (In the technical sense- a thing that is thrown) aren't going to do very well. Of course, if you have a controlled missile which can change direction while in flight, you can improve the hit rate enormously. - Gun Owners of America informs me of a new hunting ban ballot measure in Colorado: the mountain lion
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