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Cake day: July 9th, 2024

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  • leadore@lemmy.worldtoScience Memes@mander.xyzAnon questions our energy sector
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    6 months ago

    Just because burning fossil fuels is bad doesn’t magically make nuclear good, or somehow no big deal. The chance for a catastrophic accident mentioned in the meme is only one drawback (which is bad enough–get real, denial is not a strategy here). Just a few other issues:

    • the problem of what to do with the waste: no permanent solutions have yet been implemented and we’ve been using costly-to-maintain “temporary” methods for decades. Not to mention the thermal water pollution to aquatic ecosystems

    • the enormously out of proportion up front costs to construct the plants, and higher ongoing operation and maintenance costs due to safety risks in proportion to amount of power generated

    • the fact that uranium is also a limited resource that has to be mined like other ores, with all the environmental negatives of that, which then has to go through a lot of processing involving various mechanics and chemicals just to make it usable as fuel.

    Anyway I’m not going to try and go into more detail on a forum post, but all this advocacy for a very problematic method of producing power as if it’s a simple solution to our problems is kind of irritating. At least I hope the above shows we should stop pretending it’s “clean energy”. We should be focusing on developing renewable and sustainable energy systems.





  • It’s 93 here today and I’m not using the AC, haven’t turned it on for several weeks. That’s because it’s autumn and the hot days are fewer and further between now, and the lows are getting down into the 50’s so in the house it’s only 78 right now (which is comfortable for me, that’s what I keep my AC set on during the summer). If it was 93 but August instead of October, you can bet I’d be using the AC. The overnight lows at that time of year don’t go below the 70’s and the house would never cool off to 78 without it.

    Point is, the US is a very large country with lots of different climates, which the people who live in them are acclimated to. Northerners are acclimated to the cold so the 70’s feel very warm to them, while they feel perfect to me where I live. In even hotter areas 70 may feel cool. Of course that all depends on the humidity as well.

    I lived in western Montana (cold and dry climate) back in the 80’s. I don’t know how it is there now with climate change, but most people didn’t even have air conditioners at all back then. There was no need. Even in the hottest part of the summer it got chilly or even cold at night. The house would hardly have time to heat up, you could regulate your inside temp with strategic opening and closing of windows at different times.





  • leadore@lemmy.worldtoMemes@lemmy.mlZen Z
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    9 months ago

    OK let’s have a lesson for those who find this difficult. First, remember that little kids pick this up quickly and easily, so you can too!

    We all know there are 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a day, right? and that the day is divided into the a.m. of 12 hours and the p.m. of 12 hours.

    So analog clocks show those 12 hours as the numbers 1-12 evenly spaced around the clock face. Now look a little closer and you see it’s also divided into 60 marks with a tick mark for each of the 60 seconds/minute or 60 minutes/hour. Hang on, we’re almost there!

    The little hand points to the HOUR number (1-12). If it’s in between two numbers, that means the time is in between those two hours.

    The big hand points to the MINUTE tick mark. Notice that the 1-12 numbers coincide with each 5th tick mark so it’s easy to count them. Just count by 5’s! So if the big hand is between the 3 and the 4, that means the minute of the hour is between 15 and 20, look at which tick mark for the exact minute.

    Now, can you figure out how the second hand works? Good! Kindergarten dismissed!

    /s


  • leadore@lemmy.worldtoMemes@lemmy.mlZen Z
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    9 months ago

    Anyone who wants to understand how to read an analog clock can learn it in two minutes, it’s not like you need to be taught in school. edit to add: My brother recently told me that he was at the library and his friend’s teenage daughter looked at the analog clock and said indignantly “I can’t read that!” So apparently it is true that people aren’t learning simple skills like this.