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Joined 1 year ago
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Cake day: July 8th, 2023

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  • haha.
    Similar, I skim then, don’t really know what they exactly mean, but often some terms and phrases are just scary.

    Is there any youtube channel or something where someone knowledgeable goes through them and points out what the different parts mean.
    I think that’d be quite interesting or at least useful.



  • explainingcomputers on youtube.

    But really he just shows how there’s nothing to it these days.
    Probably easier than a windows install.
    Especially if you try to force your brain to read the windows user agreement - I tried to do a micrsoft virtual machine install recently, and got stuck at the EUA. My mouse just refused to click yes.








  • The covid impact is an interesting example of demand reduction.

    In my country the imact of petrol in road and air travel still being below pandemic levels in 2022 (latest data) is about 75TWh less fuel demand. This is almost as big as the output of all wind, solar hydro power gen in the country in energy terms (85 TWh) in 2022, and we’ve been investig fairly heavily for 2-3 decades now.

    For cost effective . …
    Drive less, drive (travel) more efficiently, live closer to the things you need.
    Heat less, heat more efficiently. (I live in a cold country so cooling is not something i know much about - apart from it being a natural fit for distributed solar PV).
    . . . probably also breed less on a global scale for the long term.

    I think the pandemic proves that people can travel less if forced too, they just don’t want to, hence the bounce back we’ve been seeing.
    But some structural improvements such as work from home for many office workers have locked in some benefits.

    Some of the other solutions have complex feedbacks and infrastructure dependencies though. I don’t like utility scale PV as it competes with farmland or other land use like forests / swamps.
    EVs and electrification of heat will ulimately double or triple the demand on our national electricity grid - i just can’t see renewable elec gen growing to that level even on a 30 year horizon .

    We tend to do the easy and cheap projects first, so the next 300% is likely to be more than 3x as hard as the 100% so far. The exponential growth of the last few decades will plateau into an S-curve eventually. I think it already has for PV gen - which despite what this dude said in the videos, seems to need subsidy to drive uptake.
    Maybe, unless we re-think hydro strategy






  • If you do that / fall for that, then you’re part of the problem making such a future a reality…

    Lots of peoples’ buying habits and trust-based attitudes were forged last century.
    It’ll take a generation or two for new habits to form.

    In the meanwhile modern businesses will make hay by selling trojan-horses to old school customers , and using the profits to tie-in new users to new services to try to capture/brainwash the next gen into thinking there is no choice.

    I think you’ll remain in the minority unless ‘ignorant’ consumers who ‘fall for that’ can become educated and learn about the options.



  • 22 ft unsupported seems like a very long span to me, what’s that nearly 7 metres?
    Sounds like it’s getting into the realm of structural enginneering not diy for me.

    If you want to save costs you might think aout a “flitch beam”, that’s 2 wood beams with a steel plate sandwiched in between - the three components are bolted together every few feet. Easier to join to the timbers then.
    https://www.youtube.com/watch?v=QWUNd559UQY

    I still think you might be more like 10"x2 or even 12"x2 timbers to cover that span if totally unsupported. But might still come in a little cheaper than the i-beam.
    Maybe the roof will be very lightweight and no snow weight is expected - but I’m no structural engineer so don’t take my word for it.

    Other features like corner bracing or canti-leverage, or some other support structure or other feature (like is it the bottom side of a framed gable triangle) might also help.

    LVLmight not be suitable, but i think you can get treated “glulam” beams suitable for exterior (covered) use.
    https://en.k2-builders.com/what-type-of-glulam-can-be-used-for-exterior/