John Cuthber

Nope. The clocks in the GPS satellites were specially built to run at the "wrong" rate while they were on Earth, so they would seem to run at the right rate while in orbit. To get back to the necromanced thread; as far as I can tell, it's impossible to be a scientist without being open minded.

I may be missing something but... Let the water sink to the bottom and pour off the oil.

The power needed is pretty much proportional to the difference between the average outside + inside temperatures. Heating the house to "too hot" is never efficient in this situation. But the details may depend on other factors. Incidentally, do you have air con + can it be reversed?

Or it wouldn't be football, and fewer people would be interested.

Two adults doing something they should have grown out of in the school playground is not my idea of entertainment. I guess it's exciting, but the people who get caught in a train crash get excited- that doesn't make it a good thing.

I think it depends on the other experimental details. Can you post them? If I was trying to measure I2 in CCl4 I might start with a colourimetric assay unless I really needed good precision.

Unless, of course, it isn't. https://www.quora.com/What-is-iodimetric-titration-and-how-is-it-different-from-iodometric-titration

How (in)efficient is a "traditional" bike chain/ sprocket drive?

I hope so; it's been cluttering up two of our major TV channels.

So, once again, Where? Quite possibly. It's not impossible to light briquettes- just a PITA. If his were easy to light he might have a USP. And, it's plausible that he might sell two sorts Easy to light- for starting the fire and ordinary- cheap ones for keeping it going. In which case he might be very successful It might be an idea to wait till he comes back with more information. Unless he lives somewhere very dry, the tendency of NaNO3 to go damp is going to be a big problem

Do you know anyone who lives in an oxygen free atmosphere where such a question would be important? Or are you just not paying attention to this bit?

Did it somehow escape your notice that charcoal already has an inbuilt flammable ability? Somewhere between a fuel with no nitrate- which is hard to light and gunpowder which is too easy to light, there may well be a mixture that's satisfactory. https://en.wikipedia.org/wiki/False_dilemma Studiot; I didn't ask if the OP had used the phrase "industrial use"- he plainly had. I asked where he had suggested that the briquettes were for industrial use. It seems to me that the OP has an industry that makes + sells briquettes- quite possibly to domestic consumers/ householders. Their customers would like a product that's easier to light. One way to achieve that would be to incorporate sodium nitrate into the briquettes. And he's asking for a process to Now, as it happens, I don't think that's the best way forward, not least because ammonium nitrate might do the job just as well (or badly) as sodium nitrate. But that doesn't mean that the briquettes are sold to industry (they might be, but as has been pointed out, industrial furnaces often have other mechanisms for lighting them). So, does anyone have any reason to show why I'm mistaken about my interpretation? And does anyone actually have an answer to his question- how does he make sodium nitrate?

Well, you could ask that as a first question...

No. I'm observing they make briquettes which catch fire slowly Where?

W(hy all) the b(rack)ets? At the temperatures where nuclear fusion takes place, everything vapourises. The only way you can get solid nickel is to make it in a star - where gravity will keep it together in spite of being vapour- and then release it into the cosmos when the star explodes. Then wait for gravity to bring the "ashes" together.

We are. And I think you mean "In light of..."

There is a difference between "They wish to burn their product " and "They wish their product to burn" And so did my grandmother, but if you are selling to a market that does not have access to gas, you might want to make your briquettes easier to light. Why are you assuming they are selling to industry?

"Please read entire post there is very important work in some of the parts" Just post those parts.

Most don't. In the event of a collapse of civilisation, the risk of skin cancer or rickets would be pretty low down the list of problems people face. It wouldn't be enough to drive anyone to migrate. I have white skin, but if I was "one of the few survivors", I'd move South. It's warmer and easier to farm with a longer growing season.

Be careful about how fast you get them to burn. What's wrong with using ammonium nitrate? Also, sodium nitrate is rather hygroscopic.

Write a list of everyone's names (about 8 billion at the moment). Then the first question is "Am I in the first or second half of the list?" That crops it down to about 4 billion. You discard the "wrong" half of the list and keep the half with "you" in it. Then you ask if you are in the first or second half of the remaining list. Keep going, and you will find out who you are in 30 questions or so. I Read once of a Russian TV show based on the similar idea- 20 questions- which degenerated into unwatchability when a team of two mathematicians armed with the dictionary (from which the words were chosen by the host) employed this tactic.

Somewhat less than it did before- I'm a werewolf. Unless it's a UV laser below about 360 nm

A shelf does not need power to hold up a book. In principle, it's possible to make a meter entirely from superconductors so the needle would stay in place without the supply of any power.

Once the needle has swung into place, all the power delivered to the meter is dissipated as heat so, if you only look at mechanical energy, it doesn't seem to be conserved.