studiot

That's exactly right, well done. +1 'Complex' means made of more than one part and as you say 'The Complex Numbers' are made of two parts. What did you think of the other information poeple provided ?

Thank you for your further reply. This is your thread and your proposal. Whilst it is interesting to discuss generalities, it is up to you to explain the chemistry of how it works, especially in the Chemistry section. But so far you have only offered generalities. If you injected carbon dioxide into any type of earth material, what chemistry would be involved to keep it there ? Why would it react at all rather than just dissipate ?

My apologies that equation should have been 20x2-2x+1=0.

If the armour plating on a tank or a battleship is insufficient shielding against an EMP weapon, I doubt you could shield you computer. It has been suggested that old fashioned valve technology is more resistant than modern semiconductors on account of the very much higher breakdown voltages/field strengths involved.

You have posted this in Applied Mathematics, and it is true that most if not all applications can be handled in other ways. Perhaps you do not know the role played by complex numbers in Pure Mathematics. Perhaps the simplest answer is that number systems were developed in sequence starting with the simplest counting numbers, Going through systems including The full set of integers. The ratioanl numbers (fractions) The real numbers The imaginary numbers The complex numbers (do you know the difference between imaginary numbers and complex numbers ? What does complex mean ? Now each of these systems was introduced when it bcame apparent that there were equations in the simpler system, that had no solutions in the simpler system. For instance the equation 2x = -30 has no solution in the counting numbers or the positive integers, the equation 2x = 1 has no solution in the integers, the equation 2x2-20x+1=0 has no real solutions - both solutions are complex. So complex numbers are necessary to provide solutions to all quadratic equatuions. Some equations of higher order do not even have a solurion formula withoug involving complex numbers. It is just fortunate happenstance that having developed complex numbers they find many useful applications elsewhere. Of course the process has not stopped there, there are even more complicated 'number' than complex ones.

I was going to put my reasoning for my statement into an answer in the 'movement without time thread' , but the OP there seems to have lost interest. So I will just point out that some (very important) equations of motion have time independent solutions.

Others have already commented on the unwanted chemical side effcts of your proposal. +1 each. So I will concentrate on asking how you would achieve your desired ones. How would the chemistry of 'infusing with carbon' work ? What would be the production rate of such a process and what would ecological transport costs of placing it somewhere useful ? Why would you need a greenhouse-like structure ? Why would an ordinary shed not do and how big would that shed be ? I would just like to add that Drax represents one of the biggest cover ups of wasted public money and effort in our history.

Surely this failure, by someone who clearly doesn't know what they are talking about, to provide proper Physics and Maths support in a mainstream forum has gone on long enough.

Is this some sort of project you are studying ? I do not think attempting statistical data comparisons is the right way to go about it. You need a model to discuss. Your model should identify major and minor factors of formation and inparticular classify where climate fits in. Yes climate is a factor in soil formation, but no by itself climate cannot indicate current soil type. That is because formation is historic and the climate may heve been different during that time. So you need to distinguish between historic climate and present day climate. I reckon climate to be a minot factor because no climate regime can create soil types that which do not derive from the parent geology. For example China Clay is a particular 'soil' and is derived from the weathering of a partuclar form of Granite. If the underlying rocks ar not made of this granite, they cannot weather to china clay, whatever the climate. I recommend obtaining, reading and using as a eference, World Soils by E M Bridges of the International Soil Reference and Information Centre, Wageningen Cambridge University Press It offers suitable models etc for your project.

How do you know this ?

But his statement is just not true. I prefer "Time and Tide wait for no Man" At one time the truss was the only solution. Inguinial hernias are by far and away the most common, with the patient's right hand side accounting for over 90% of cases. I had one done in 2016, a repair that has remained successful since then. I was also one of the unlucky ones who developed a LHS one in 2021 and had that repaired just before Christmas, at the ehight of the December Covid wave. Again an excellent job. Both time were done at a clinic that is a shining example of state - private working together in close harmony, demonstrating that thre is no intrinsic reason for such practice to work well.

Can you reference any superconducting tubes that don't require energy input to maintain the superconducting state ?

Well you should care. Heat capacity is the capacity to absorb heat, yes. But once absorbed you want to store it and finally retrieve it, not loose it or waste it. This is where heat conduction and heat transfer coefficients become important. Thermodynamics forces you to store heat energy at a higher temperature than the surroundings you want to keep warm. Note this is different from chemical, mechanical potential or electrical energy. But you want to release it gradually as slowly as needed otherwise much goes to waste. The design of electric night storage radiators has greatly improved over the years as manufacturers slowly recognised this very important factor. Seth's cast iron Rayburn was a classic victorian implementation of this knowledge as were the massive cast iron fireplace surrounds they used to install. +1

Not sure where to put this so I am starting with other science if we can include bonkers maths as currently practiced by UK politicians. I have recently received notification from my electricity supplier company that my standard tariff has increased from £0.2992 per kW-hr to £0.3661 per kW-hr. So imagine my suprise to see this report by the BBC. https://www.bbc.co.uk/news/business-63329233 What ?????????? they will pay me £3.00 to use off peak electricity ? When do I get started, I plan to use as much as possible. Will I get rich quick ?

I suggest the following strategy. Start at the beginning and attempt maths questions from that year's material, from any source that you can get hold of so long as the answers are also provided. You don't need to achieve grades or marks, just to find out what you know and what you don't know. Hopefully, as you say, it will come easy at this stage and you will fly through the material. Quickly review wrong answers and check the teaching material for that topic if you get several wrong on a particular thing. Eventually you will find questions you can't answer. This is where you stop, go back and study the teaching material for that year, going forward at your own pace. Make sure you try the questions again and even if you don't get them all right, make sure you understand how to do them. Finally you will decide that you are no longer just filling in gaps but need to take your studies forward from where you left off a few years ago.

I hate to tell you this but it is just about impossible to learn any technical subject topic by topic. This is particularly true for Mathematics. The reason for this is that all the topics are inter-related. You need to know a little bit of arithmetics to study algebra and a little bit of algebra to study geometry, but also a little bit of geometry at the beginning of algebra and so on. That is why the the same topics are revisited at every grade, but at a higher level.

If Rees-Mogg backs it then it must be right. After all he is the barrister who backed the ex chancellor and tottering prime minister. So he is clearly a nuclear physics expert. As a matter of record the UKAEA has already attempted to build a fusion reactor at least twice and failed to make it work.

Sorry all I know is that the site search bar is the biggest joke on the site. Google finds more references if you put in the username, topic and scienceforums.net. This is also why you see old hands here saying things like "I seem to rmember a thread about this....years ago from xxxx"

Click on the author or name and get to the following screen Click in see their activity You may see many pages of it if they are prolific.

Like the cat, dead and alive ? +1 It's a funny old world.

Sorry, here's why

It's a good job I have a lot of patience since your geometric response to my question doesn't look like it's going to arrive any time soon. My question simply asked how your geometric shapes related to natural phenomena such as clouds. All I have received in return is deaf reiteration of previously preached mantras.

Well I take this as an admission that you got it wrong so well done as that's difficult to do +1. Now take this opportunity the Moderator has provided to draw a line, ask the Moderstor to close this - perhaps to the trash can - and start again including only essential topics to make a scientific point. You will always then have plenty of opportunity to develop this in further threads if anything useful comes of it. Oh and did I say "read the rules" (ask the mod if you don't knoe wher to find them) you did after all agree them them when you joined.

You are completely correct. I don't know what made me think there was , I checked several times and thought there was. My sincere apologies. 😳

How is a movement an 'element' ? Have you heard the old saw about the most accurate clock in the world ? It is never right. But a clock that is actually stopped is exactly right twice a day. Go and stand in Newgrange for up to 364 days. If you see darkness you know nothing has changed. This clock can measure 364 days without 'movement'. - I see youvoriginal premise no clock without movement has been watered down to no movement, change or decay.