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Cake day: June 11th, 2023

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  • The other day I ordered a burger and they put tomatoes on it even though I asked them not to. I was about to complain, but decided to take a bite anyway and…huh. The tomato had no flavour whatsoever. I used to not like the taste of tomatoes but how could I object to this?

    So what does this mean? Are my taste buds not functioning like they used to? But I spent lunch looking it up and apparently, there is a fair consensus that tomatoes, along with a host of other fruits and vegetables, really are blander today than when I was a kid. For something I never liked, this kind of works out but…


  • I suppose it depends on the language? For the most part I think you’re right. Exceptions are only used (if at all) in situations where a program diverges unexpectedly from its normal flow. But take a language like Python. They’re just everywhere. Even your plain old for loop ends on an exception, and that’s just business as usual.





  • Flipboard. That’s a news reader for phone/tablet right? I think I used to use it a number of years ago.

    Then I started wanting finer control over my newsfeeds and got into RSS clients. But this is an interesting development in that it provides a lower-level way to access Flipboard content that might suit me better?

    I wish Apple News would do something like this. I subscribe to it to get around certain paywalls, but it seems pretty unscriptable.






  • I’ve been considering replacing the central a/c in my house with a heat pump to handle home heating as well, but never thought about heating water that way also. That’s interesting. Can you get a single heat pump system that does both?

    Where water heating is concerned, I do know a guy who set up a solar water heater, and he made some compelling arguments for it. Like he considered rooftop solar panels initially to generate electricity, but opted for water heating instead. He pointed out that while electric panels are maybe 20% efficient, water heating is nearly 100% efficient, and his system works so well that it even needs to shut off every now and then to prevent overheating. Anyway, I’m not vouching for this personally since I have no experience with it, but I’m just throwing it out there another possible approach?



  • I’m glad the article mentioned a number of potential stumbling blocks. Working in the mining sector, I do worry about the ability of metals production to keep pace with demand for all that a solar/wind/EV revolution entails. Metals are certainly the oil of this century though. Our end of the trade show floor has grown so much since I first started in the industry and the oil exploration people are just staring at their feet right now.

    I think some people underestimate how much work will need to be done on grids before solar/wind can dominate? The article does mention this also, though without any specifics. Where I live, there is a lot of solar/wind development happening, but it’s more due to the fact that the grid still has some spare capacity left in it than the area being especially well-suited to renewables. In many jurisdictions, they can’t hook up any additional capacity without major work on the grid. You might think that they could still replace existing fossil fuel energy production at least, but it is not as straightforward as you may think to move from a centralized power generation model to something more distributed. This is where nuclear may still hold some advantage, since it is centralized by nature and can fit into the existing infrastructure with less drama.

    One thing the article did not mention is the NIMBY backlash problem. In my area, some wind projects were outright cancelled and solar scaled back due to community activism. This drives me nuts, frankly. Where were all these people when coal plants were blackening the skies? But it is what it is. The next phase will be to add grid storage, but even there, there are signs of community blowback.




  • Good point. I am not opposed to pumped hydro or other such schemes for storing energy. Nuclear itself tends to be employed for base load power generation and is not especially good at following demand variability. Having supply side variability (from solar, wind, etc.) makes matters worse, of course, and necessitates even more storage. But one way or another, it will be needed, and pumped hydro tends to scale better than say battery farms.

    I wonder about option B. As it stands where I live at least, there is not much wiggle room in terms of getting people to use less power in the event of a shortage. For example, the local utility has offered free programmable thermostats in exchange for giving them the ability to control power usage in the event of a shortage, but I understand uptake of the program has been low thus far. I suspect in that scenario, they would have to bring fossil fuel power generation online.

    Where I live is not in a drought-prone area at least, but it is also not suitable for pumped hydro given the geography. There was talk in the local news recently about a compressed air storage system that may get built nearby our natural gas plant. This juxtaposition makes some sense when you think about it, since it is a site that already features well-established grid hookups, so they can piggyback on that. The province as a whole is generating something like 60% nuclear, 32% renewables (mostly hydro), and 8% fuels. Recently, there was a major refurbishment of some of the nuclear reactors and it came in on budget and ahead of schedule, so the argument that anything nuclear must automatically involve cost overruns is perhaps no longer true, though good lord we have seen some epic ones in the past, particularly after the utility was privatized.


  • So first off, the source of this article being pv-magazine makes me immediately skeptical about unbiased reporting. This part really gets me though:

    The availability of this electrical source is also questioned in view of the increasingly frequent droughts expected in the coming years, causing, in particular, low river flows and therefore associated problems of cooling power plants.

    And availability is not a problem with renewables then? If not the central problem? Hydroelectric is probably the most reliable of the renewables, but then we have the aforementioned problem of low river flows. Droughts could even affect pumped hydro: a much-touted solution to availability problems with wind and solar. For crying out loud, present both sides of the argument fairly! /end rant

    At any rate, I can get on board the idea that in terms of adding new generating capacity, renewables may be the most competitive option at the moment? They have come a long way in a short time, though they still face major challenges on the energy storage front.

    But in terms of getting away from existing fossil fuel-based power generation, is nuclear not an attractive option? The infrastructure is already there, and would essentially have to be largely abandoned as sunken assets by power utilities switching to something like wind or solar right?

    Consider your average coal plant. It is a centralized heat source powering steam turbines connected to large generators and a giant transformer station feeding power out over a network of high voltage transmission lines.

    What is a nuclear plant then? It is a centralized heat source powering steam turbines connected to large generators and a giant transformer station feeding power out over a network of high voltage transmission lines. I’m thinking at least some of the existing hardware could be repurposed for nuclear to leverage what already exists? Am I wrong?