Laboratory planner by day, toddler parent by night, enthusiastic everything-hobbyist in the thirty minutes a day I get to myself.

  • 1 Post
  • 46 Comments
Joined 2 years ago
cake
Cake day: July 31st, 2023

help-circle

  • It took several violent landgrabs and wars of aggression before Russian oligarch money wasn’t welcome around the world, and those guys were all but openly affiliated with the Russian mafia from the days of the fall of the Soviet Union. I fully expect American oligarchs’ money to be happily accepted just about everywhere for at least as long as it takes Trump to get around to trying to take Greenland by force.


  • I’d been planning for a new HVAC system for a while when that video came out, and it gave me the idea to cross-check the thermostat data with the Manual J calc I’d already done. They were in general agreement, though the Manual J block load was more conservative than empirical data for a design day.

    In your case, since you don’t have data from a healthy system on a representative heating design day, I’d suggest using a web tool like CoolCalc to simply calculate an approximate Manual J total heating and cooling load, and use that to guide your choices.


  • A little headroom ain’t bad, but it had three times the required heating capacity for my area’s “design day” low, which meant that for most of the winter it was kicking on for maybe 5-10 minutes per hour and then leaving massive cold spots in the house, because the thermostat was smack in the middle and all the walls were bleeding heat.

    My new heat pump is just about 2x the design day heat requirement, but that also means it’s got capacity to handle extreme lows without resorting to resistance heat, and in any case it’s fully modulating so the house has stayed quite comfortable so far.


  • My old furnace was hilariously oversized for the house.

    One of the nifty things about smart thermostats like Ecobees is that you can pull usage data from their web portal. I grabbed a CSV file covering a cold snap last year that reached a 100-year record low, and using Excel I summed up the total heat output while we were at that low.

    The furnace was only running 50% of the time, even when it was with a couple degrees of as cold as it’s ever been where I live.

    Needless to say, when I got a new system installed I made sure it was more properly sized, and given that I had a convenient empirical measurement of exactly how many btus I actually needed in the worst case as scenario, that was easily done.





  • I did a little digging and it seems like there’s a tiny kernel of fact at the core of this giant turd of a hype-piece, and that is the fact that they electrified this little spur line from Berlin to the new German Tesla factory by using a battery-electric trainset. Which is not a terrible solution for electrifying a very short branch line that presumably doesn’t need frequent all-day service, even if it’s a bit of a janky approach compared to overhead lines. But hand that off to the overworked, underpaid twenty-two-year old gig worker they’ve got doing “editing” at Yahoo for two bucks an article, and I guess it turns into “world-first electric wonder train amazes!”

    For a second, though, I read the headline and wondered if Musk and co. had finally looped all the way around to reinventing commuter rail from first principles after all these years of trying to “disrupt” it with bullshit ideas like Hyperloop and Tunnels, But Dumber.





  • Are there a lot of people who individually hold chaotic, mutually-incompatible political opinions? Sure! I don’t think you can boil their ultimate decision-making process down to a box-ticking exercise, where if a candidate represents sufficient number of demographics they hold bigoted views about they automatically vote for Default Old White Guy. For example –

    I can’t even tell you how many people had both Bernie and Trump as their top two candidates in the 2016 and 2020 elections.

    – that’s very clearly low-information voters dissatisfied with the status quo, who would happily glom onto anybody promising to sufficiently shake things up. Sure, Trump and Bernie had wildly-divergent platforms, but Joe Sixpack – who probably doesn’t feel like he has a dog in the fight on any of the particulars like abortion or finance law and assumes anybody sticking it to the broader political class is a net positive for him – doesn’t see much practical difference, and is so little affected by the bigotry of the right that none of it bothers him, so of course the two candidates presenting themselves as outsiders with a plan to shake up Washington are basically interchangeable.


  • I just don’t think that’s a very big demo. Anybody who’s suddenly motivated to keep the White House white and estrogen-free is more than likely a foaming-at-the-mouth MAGAt, who was already motivated to put their guy back in office. There will of course be a few people who fit that description, and probably many more diet racists and sexists who will just stay home if their options are Trump or a “left-coast liberal woman,” but I don’t think they make up a significant-enough proportion of the voting public to outweigh that latter group you mention, who couldn’t muster much enthusiasm for Biden but are amped-up to vote for somebody younger, healthier, and more dynamic.


  • Obama won by healthy margins in '08 and '12, and Hillary – the least likeable candidate that’s made it to the top of the Democratic ticket since Dukakis – still won the popular vote. I think the people who would vote against a black woman for President were never going to vote for a Democrat in the first place, and given the general aura of relief and enthusiasm I’ve seen in left wing spaces since the announcement I think Harris is going to be riding a wave of support from the left, even if half of it is just from people who are glad they don’t have to hold their noses to support a doddering octogenarian because the alternative is fascism.



  • The play-by-email mode was broken to the point of uselessness in Civ5 and I don’t think they fixed in it in 6 (you had to have an always-on Windows desktop system running the server, and because the game logic was integrated into the graphics engine you couldn’t run it headless, and then on top of that there was basically no working system to coordinate active DLCs between players so most of the time people couldn’t join even if you did get the damn thing running) so my friends and I tried once and gave up. I would love for 7 to have a robust PBEM system so that we can play together without needing to spend hours a week watching paint dry while everybody else plots their turns, but I’m not holding my breath.




  • I don’t like that Russia is using the ZNPP as more-or-less a dirty bomb threat against Europe, but at the end of the day the VVER-1000 reactors there are relatively modern GenIII pressurized water reactors. An intentional or accidental meltdown there would not create a Chernobyl-like event. It’d probably end up being more like Fukushima, which if I remember correctly lead to a couple orders of magnitude more deaths due to the stress of evacuation than it’s anticipated to create from radiation exposure.

    Bottom line, when you’re talking about reactors that aren’t pants-on-head stupid designs like the RBMK the actual health risk of radiation exposure due to accident is lower than the health risks of most other forms of power, including some non-fossil-fuel alternatives. Long term storage of spent fuel is another issue, but one that’s reasonably solvable as long as we treat fission as a transitional base load power source as other alternatives like storage and/or fusion power become more viable.