Pigeon

Pigeon

  • Commented on Oh, 2022!
    "Alternatively, I could drain the system when in danger of freezing - much added hassle, but more importantly a drained system isn't providing any hot water at all either." No, but if it's gathering so little heat that it can't...
  • Commented on Oh, 2022!
    "11000km.sq? So a bit less than the roughly 1250km.sq used just for roads then. Sure, no possible way that much land could be used for something as trivial as generating some energy." You appear to have dropped a zero from...
  • Commented on Oh, 2022!
    "11000km2, which is roughly two-fifths of the total area enclosed by the M25 (assuming it to be a circle of 188km circumference)." AARGH BOLLOCKS Forgot to divide by π. 3.9 times the total area enclosed by the M25. Adjust subsequent...
  • Commented on Oh, 2022!
    I agree that it's a fairly daft idea for pretty much the same reasons, but the pipelines thing isn't quite as bad as all that. Granted it's from an outfit who make the stuff, but this PDF about HDPE pipes...
  • Commented on Oh, 2022!
    "One thing to bear in mind on bulk energy storage generally; the business case for anything like that right now is limited by the existence of gas fired power stations." If you confuse a purpose by introducing money then the...
  • Commented on Oh, 2022!
    "Well, depending on period, after the brand was created, Motorail might have used special double-deck car wagons, or might have used standard rail flatbeds with bridges between wagons. Never the less it was not normal practice to carry passengers in...
  • Commented on Oh, 2022!
    "Now consider efficiency. Heating and melting things using electricity is close to 100% efficient, but converting heat to electricity is NOT." Yes, quite. You need two to three times as much storage as you expect to get out of it...
  • Commented on Oh, 2022!
    "I said the limiting case was about a year's worth of energy could fit in a square 10 km on a side. I did say that though it wouldn't actually be built that way, (for a host of reasons) and...
  • Commented on Oh, 2022!
    "when I said a pile of shoebox size sealed steel boxes filled with anhydrous salt." I can't actually find where you said that, but what do you intend to do with it? Measurements from an actual shoebox I happen to...
  • Commented on Oh, 2022!
    I don't see where you're supposed to put the coal in. It looks like an internal combustion engine with a feed connection for gaseous fuel. I suppose you could run it off coal gas you brew yourself but in that...
  • Commented on Oh, 2022!
    "the UK and EU are slowly moving to ETCS" We are not going to see ETCS (we're supposed to call it ERTMS these days) supporting moving block in the foreseeable future, certainly not in the UK. It's been a wishlist...
  • Commented on Oh, 2022!
    "I've been along (since we went in by adits) both of them." So have I :) Still wouldn't want to be inside there in an earthquake. The kind of people who poke around in dodgy bits of old underground workings...
  • Commented on Oh, 2022!
    I wouldn't fancy being down there in any kind of earthquake. It's all booby-trapped. One of the quarry owners somewhere in the middle started going bust, and tried desperately to hang on by playing fast and loose with how much...
  • Commented on Oh, 2022!
    No, not via the canal, I meant digging a bloody massive tunnel and putting turbines in it... The Pacific is on average a little higher than the Atlantic, so there is some head to generate flow; and it can get...
  • Commented on Oh, 2022!
    "I think this is actually a case where money stops being a useful way to understand the world." I don't think it ever was. It's OK for the small-scale, grounded, everyday purpose of tokens for playing swapsies to avoid getting...
  • Commented on Oh, 2022!
    Last time I looked the best I could find about how much tidal capacity Britain has came out somewhere around 10GW, which is nice to have but a long way short of filling in for when the sun and wind...
  • Commented on Oh, 2022!
    "They have even shown both operations done at speed, but decided against doing that, because the new/future ERTMS radio-based signalling system protocols do not support it." Slip coaches, or entire slip portions, are of course old news - the GWR...
  • Commented on Oh, 2022!
    "Because that "one thing" worked so efficiently and reliably in the past, everyone in it worked harmoniously to ensure that, and people certainly weren't out for whatever they could get." [context: sarcasm] Any organisation has such problems because they naturally...
  • Commented on Oh, 2022!
    "But it's not a few seconds, particularly for a train that already has passengers on it." Yes, it is, with modern automatic couplers. Front half of Oxford-Paddington service (return working of unit that has just done Paddington-Oxford) is waiting in...
  • Commented on Oh, 2022!
    Of course it's insane. It's another of these idiotic Tory privatisation jobs that takes an integrated national organisation that all worked together, and splits it up into a whole slew of different bits for every narrowly-defined sub-function all working against...
  • Commented on Oh, 2022!
    Dragons only ever managed to survive because nobody had any better projectile weapon than a bow and arrow to attack them with. Their armour could shrug that off, but it seems that they were not proof against someone getting up...
  • Commented on Oh, 2022!
    "The thing I don't get is why the whole lorry has to be inside." There was a lot of fuss even before the tunnel was dug along the lines of "what if something catches fire in it", so they've been...
  • Commented on Oh, 2022!
    The OJP and other sites that talk to the same API with a clone of the same crappy client software have a nasty habit of doing their best to conceal the actually useful fare information and instead present you with...
  • Commented on Oh, 2022!
    "Given the price of rail tickets, it is generally cheaper to drive somewhere than to take even two people by rail." It's generally cheaper to drive somewhere than to take one person by rail. Sometimes this even remains true if...
  • Commented on Oh, 2022!
    "the renewable wood-pellet power station at Drax." "I used to eat from Gascoigne Wood but now I just eat wood. I'm so green, I'm so green..." I am distinctly suspicious of that place. "Renewable biomass wood pellets" sounds awfully green...
  • Commented on Oh, 2022!
    Well, I reckon there are two options for something that wants to be a dragon. I can see a proper one ending up being a bit like a semi-pelagic seabird, and living in the same sort of places - ie....
  • Commented on Oh, 2022!
    "There are still unresolved problems with nuclear power (primarily what to do with spent fuel & non-proliferation)" Spent fuel: isn't. What to do: burn it. The problem there is the idea that it's acceptable to consider it "spent" when it...
  • Commented on Oh, 2022!
    Another instance here. We have an aunt who went to live in California (married a chap who wanted to escape his memories of Nazism and WW2). She is well off and tries to visit England once a year to dash...
  • Commented on Oh, 2022!
    "Where both parents are working it is incredibly difficult to manage having a kid at home and in need of some educational support." ...the fundamental problem here of course being that "both parents are working" is considered a normal and...
  • Commented on Oh, 2022!
    Eurostar do something which looks the same but isn't really: functionally it's just another cross-Channel vehicle-carrying ferry that happens to go under the sea rather than on top of it. It's a means for getting past an obstacle that is...
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