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SteamyTea

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Everything posted by SteamyTea

  1. I would like to see how that works in practice? If we call black, zero, and white, one. Show me how 0=1 please. It is possible to ask people the wrong question and then record the data badly, but that is not proving anything. So the question, when series of coloured cards is 'what colour is that?', but the only recorded answer is for white cards. This does not offer an alternative recording of the answer i.e. is it another colour than white. An another why to collect bad data is to categorise things badly, which then delves deeply into set theory. So that white card is in the group of all colours, while also being in the group of colours that are not black. Taken as a whole, after millions of samples are taken, white will look, by the numbers, to be part of the all colours group, rather than the not black group, but as black is also in the same group as white, you can say that black (0) and white (1) are equal. But you would be mad to. Or just listen to More or Less. An alternative approach is to place people into sets, those that understand data, those that use data to suit their beliefs, those that distrust data (which is not the same as saying it is lying) and those that think some data is presented as lies, and finally, those that think all data is a lie.
  2. Better still, just listen to Adam Rutherford's Bad Blood: The Story of Eugenics https://www.bbc.co.uk/sounds/play/m001fd36 Shows how uneducated people can fall for fake statistics and be, in part, responsible for millions of murders. Sadly, even on here, we have some members that think some groups of people are still inferior.
  3. Been used in narrowboats for decades. There are different grades of ply, and different surface finishes. You can get fire retardant plywood. https://sheetmaterialswholesale.co.uk/sheet-materials/plywood/fire-retardant-plywood/
  4. Was thinking it may be worth having two DC isolators at each end of the DC line, then thought, you switch the AC line off first, so not really necessary. Except, someone that does not know about PV may not think to isolate the DC side, so maybe one near the inverter is sensible.
  5. Fires globally are a problem. There was a bit on the radio about how those Canadians fires are possibly going to cause a change in the weather in Northern Europe. It is raining this morning, just like predicted.
  6. I don't think it works like that. You may get your money back, but then you are on the same bandwagon, so you are starting all over again, minus that the insurance has cost you. What is happening with Isotex, any movement there?
  7. This weeks Inside science. https://www.bbc.co.uk/sounds/play/m001n8q1
  8. Yes, as I said, incompetence by both.
  9. Isn't the landlord bashing an unforeseen consequence, rather than a political will, never look for malice when incompetence will explain it better.
  10. Ewww A left handed typist
  11. It is to do with having a mobile workforce, something that the UK has not been very good at. Partly why there are a lot of motorhomes in the London suburbs, they would not be your first choice of city driving vehicle. I suspect that the LEZ is forcing them further from the centre.
  12. He has already promised it to me.
  13. Welcome. Which areas are you interested in and what skills do you already have?
  14. How about buying in from Thames Water. Oh, hang on. https://www.bbc.co.uk/news/business-66039170
  15. Is there any reason a person, who has no connection to the building i.e. me, can write to the local authority planning department and ask for clarification on decisions?
  16. I can't answer it, and a sales person would just say it is not a problem.
  17. Are there any special rules applied to long, exposed, DC runs? Generally considered more dangerous than AC. Maybe a RDCDD fitted (a DC RCD).
  18. I know you are not going MCS, but I think they specify a 1% volt drop. This is because of metering, so may well be a more general rule by DNOs.
  19. And their earnings. Can't really have a recession without wages dropping.
  20. Welcome Gusty. Probably marginal where you are. But as @JohnMo says, in a new place where you want to get ACH below 1, then as a fraction of the whole, it seems to make sense. As for noise, the bigger they are, the more they will vibrate when hit by rain, especially wind driven rain.
  21. Old Mike Lloyd, over at the other place, had his ground mounted array 40 metres or so from his inverter. The DC cabling was standard 4mm. Seem to remember that the voltage drop was not too bad.
  22. Could be worse, they could play Radio 1 loudly. Or worse, local radio.
  23. How is an inverter going to charge the battery, or are you talking about hydrid ones that can manage your battery charging and PV?
  24. Ah yes, Scoucer stands.
  25. Stop being a (expletive deleted). 10 kWh at up to 3.6 kW. I think what you are after is a smarter charge controller, not a new inverter.
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