Nojay

Nojay

  • Commented on Invisible Sun: Themes and Nightmares
    There are engineering advantages to direct-drive systems in most motorised mechanisms like wind turbines, robots and the like. The pluses and minuses for a given application are another matter but I can certainly see why washing-machine manufacturers might have gone...
  • Commented on Fossil fuels are dead (and here's why)
    Remember though that China has a population of about 1400 million people. They burn about 2.3 tonnes of coal annually per capita. The US burns about the same amount of of coal per capita annually. I think Australia burns about...
  • Commented on Invisible Sun: Themes and Nightmares
    For washing machines to be feasible you need both electricity and running water, and preferably sewage disposal too. Buckets of water from the local streams or standpipes will allow a bodged washing machine to work fine and sewage, washing machine...
  • Commented on Invisible Sun: Themes and Nightmares
    That picture doesn't show a shanty town, sheds made from scrap wood and plastic sheets on waste ground, unstable hillsides and landfill dumps. The Manila street in your picture shows brick and stone buildings, two stories tall with running drinkable...
  • Commented on Invisible Sun: Themes and Nightmares
    Energy is a differentiator, people with ready access to energy don't live in slums. Poor people without ready access to energy live in slums. Lack of energy is poverty, basically. If there's oil and gas and coal available then the...
  • Commented on Invisible Sun: Themes and Nightmares
    I have no trouble running a washing machine off my solar panels... If you're living in a shanty town with solar panels you won't have them long before they get stolen, although that's probably the same way you got the...
  • Commented on Invisible Sun: Themes and Nightmares
    Washing machines are the premier labour-saving device anywhere in the world. Washing clothes is woman's work, walking three kilometres to the nearest river with a bundle of precious cloth on your head and then spending a couple of hours beating...
  • Commented on Fossil fuels are dead (and here's why)
    The current-build USN Virginia-class subs are mainly intended for shore bombardment duties, able to turn a distant city centre, air base or port facility into rubble using seventy or eighty cruise missiles dispensed from a central vertical-launch magazine. They also...
  • Commented on Fossil fuels are dead (and here's why)
    The Australian goverment wants the hulls built in Australia, no question. Getting the modules and assembling them like Legos in an Adelaide shipyard probably isn't going to fly. A cheaper option would be to get the boats built by the...
  • Commented on Invisible Sun: Themes and Nightmares
    Nowadays SSNs tend to go under once they're at their patrol station and not come up at all unless there's a damn good reason to be on the surface, thanks to ocean surveillance satellites and marine patrol aircraft. If you...
  • Commented on Invisible Sun: Themes and Nightmares
    We only ever bought 4 Trafalgars. Unless you mean we got a "buy 4, get 3 free" deal from BAe Systems (which I don't think happened), the Royal Navy operated seven Trafalgars with the last two of the set still...
  • Commented on Fossil fuels are dead (and here's why)
    Interconnects do not generate electricity, they only transmit electricity generated by nuclear power plants, wind turbine farms, tidal barrages, solar panels, hydro-electric dams, hamsters in wheels etc. somewhere else. Interconnectors cost money and waste energy and don't add to the...
  • Commented on Invisible Sun: Themes and Nightmares
    Is this a good time to point out that it would also give the Aussies a larger fleet of Boats than the French? Fewer nuclear subs could cover the same patrol areas as the original French order of up to...
  • Commented on Invisible Sun: Themes and Nightmares
    The French Shortfin Barracuda submarine design would have been good for longer-term blue-water patrolling like the roles undertaken by existing Collins-class subs, more modern and less vulnerable and with better range and endurance than their predecessors. This would allow them...
  • Commented on Fossil fuels are dead (and here's why)
    So how is the power coming from Ireland to Scotland and Wales generated? Gas and wind, IIRC. Much of the time power flows from the UK to Ireland. At one point the Republic of Ireland had a peat-fired power station...
  • Commented on Fossil fuels are dead (and here's why)
    For those folks who think that subsea interconnectors distributing overabundant renewable energy will save the world... The British end of one of the cross-Channel power cables caught fire yesterday, removing about 2GW of cheap abundant reliable French nuclear power from...
  • Commented on Fossil fuels are dead (and here's why)
    The choice of hulls is going to be interesting -- the US Virginia Block V hulls are 10,000 tonnes-plus (over half what the original Dreadnought battleship massed) with lots of extra bits like the cruise-missile launch tube module in the...
  • Commented on Fossil fuels are dead (and here's why)
    News just announced, out of the blue -- the Australian Navy is going to scrap the controversial Shortfin Barracuda submarine program (a modified conventionally powered version of a French nuclear sub) which was meant to replace their ageing Collins-class subs....
  • Commented on Fossil fuels are dead (and here's why)
    "Some" has a slightly longer vowel sound that the more abrupt "sum", in my experience. Generally Glaswegian cuts off word endings and shortens vowel sounds resulting in the classic glottal stop. The Glaswegian word "sumfin" is a classic example, meaning...
  • Commented on Fossil fuels are dead (and here's why)
    In thus case, most people don't pronounce 'sum' like the 'some' in 'fearsome', nor 'injun' like 'engine', Bascule, the character-locutor of the phonetic sections of the story did pronounce words like that. I did decipher some of the text line...
  • Commented on Fossil fuels are dead (and here's why)
    I can't read "phonetic" fluently so I found those parts of Feersum Injin incomprehensible when I attempted to read the book and I eventually gave up on the whole thing. If anyone has produced a version with those sections translated...
  • Commented on Fossil fuels are dead (and here's why)
    Something I was discussing in the comments a few days ago, the No. 1 reactor of the HTR-PM nuclear plant at Shidaowan in China has achieved first criticality according to news reports. https://www.world-nuclear-news.org/Articles/Chinas-HTR-PM-reactor-achieves-first-criticality One down, another 149,999 to go to...
  • Commented on Fossil fuels are dead (and here's why)
    Scaling up tends to be where fusion experiments break. The early days of fusion got quite good results with magnetic mirror systems[1] for maintaining a plasma hence the rather premature "too cheap to meter" claims in the 1950s. Once the...
  • Commented on Fossil fuels are dead (and here's why)
    In the end high burnup and thermal efficiency were rendered less important thanks to the ready and continuing availability of cheap mined uranium. The British AGRs are about 41% thermally efficient and have a good burnup ratio but they're not...
  • Commented on Fossil fuels are dead (and here's why)
    If the metal workers could not build a steam engine of sufficient quality, The first practical reciprocating steam engines were made mainly from wood. The pistons were sealed in the wooden cylinders with straw manure as packing material. Substitute 'barrel-makers'...
  • Commented on Fossil fuels are dead (and here's why)
    The folks who have a good idea about fusion today say prototype fusion power plants (PROTO) are about eighty billion dollars away. Timescales, it depends how fast they could spend that eighty billion bucks but probably twenty years or so...
  • Commented on Fossil fuels are dead (and here's why)
    Silver-plated cables... they existed before the audio-fools discovered them in the component catalogues. They're intended for high-frequency RF signalling because of the "skin effect". RF tends to travel mostly along the outside of a wire, silver-plating copper wire reduces the...
  • Commented on Fossil fuels are dead (and here's why)
    I'm still curious if there are other gasses besides helium that would work for the heat exchange. The UK has Advanced Gas-cooled Reactors (AGRs) that use carbon dioxide as the coolant circulated through the core before it goes through heat...
  • Commented on Fossil fuels are dead (and here's why)
    There's no world-wide shortage of helium. A number of natural gas production facilities around the world have started recovering helium from gas domes (it's a byproduct of radioactive decay) for sale, expanding production as demand has crept up due to...
  • Commented on Fossil fuels are dead (and here's why)
    The Chinese are building functional sodium-cooled BN-derived reactors, plural - the first CFR-600 is well along in construction and they started pouring concrete and bending metal on their second CFR-600 in December last year. They already have the 65MWt CEFR,...
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