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Cake day: October 6th, 2023

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  • “class 4” is just the highest class, being over 500mw. Technically, the experimental lasers they use on warships are class 4 lasers.

    Most countries don’t restrict owning them, but they do restrict selling them. When you have one, it’s kinda like owning a kitchen knife, perfectly legal, but as soon as you do dumb shit with it, thats still on you.

    And class 4 lasers make it VERY easy to do dumb shit.












  • Tar_Alcaran@sh.itjust.workstoScience Memes@mander.xyzSpicy Air ☢️
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    4 days ago

    So let me counter ask you a very similar question: how much radioactive material (weight or volume, your choice) do you think was spread in Chernobyl,

    Some 60 tons of reactor fuel were expelled “locally”. That wasn’t easy to Google, but easily to convert back from the radiation released. I might be a bit high due to iodine being released which isn’t part of the fuel.

    Thanks for once again proving my point. As soon as I point out how nuclear waste isn’t actually a real problem, opponents of nuclear power tend to immediately move the goalposts, without actually answering the question too.

    But the preemptively adress your moved goalpost:

    That might be flippant, but does this matter at all? You might as well say solar panels are deadly because some idiot didn’t tie his safety line while installing rooftop solar panels. Or some DIYer wired the electrics wrong and burned their house down. People have died from solar panels, so using your logic, solar panels might at any moment strike and kill someone!

    It doesn’t work like that. Solar panels are entirely safe when used properly. Nuclear is entirely safe when you don’t intentionally build a gigantic bombs and then intentionally push it past all limits and override all safeties. No electricity reactor before or after Chernobyl has been capable of failing this way, it was literally uniquely terrible.

    Since you also didn’t answer, for everyone who actually does care: since 1957 till today, humanity has created, from all sources of nuclear power generation, about 260.000 tons of spent nuclear fuel. If you were to stack it into a single pile, it would form a 23m cube, or cover a soccer field 2m deep. For ALL fuel ever. And we could reprocess all of it, if not legal opposition to it.

    That’s the amount nuclear opponents complain about. One 23m cube in 70 years of power generation.


  • All these things are true. But they are far from true for the vast majority of obese people. Once you realize that you are, at least partially, contributing to the problem, you make it possible to, at least partially, SOLVE the problem.

    I have PCOS, I have hereditary thyroid issues. Those all contribute to obesity. I also retain a fuckton of water when it’s that time of the month. I also used to have BED.

    And then I went to a therapist who basically said “so, what if you had to the power to fix a quarter of the problem? Would you do it?” I said yes, and she said “Then why aren’t you?” That was a super shitty thing to say to a 19 year old, but she was entirely correct. I could fix a quarter of my problem!

    So I stopped infantilizing myself, and said I was able to lose a quarter of my overweight kilos. And you know, once that first quarter was off, it turns out that taking ownership of a problem will actually let you work on that problem.

    PCOS and hypothyroidism and water retention don’t magically put fat inside your body. You can absolutely lose weight with them. It’s not as fast as someone who is otherwise healthy, sure, and that’s kinda unfair, but its also not impossible. It’s just slower, and my caloric needs are lower than other people while my stomach started out at the same size and with the same demands for satiation. And yeah, that sucks. I will gain weight if I eat the same portions as my husband, even though I do bodybuilding, sword fighting and am very active. That’s just how it works, and no amount of crying will fix that. None of my other problems went away, but I decided to deal with them instead of ignoring them. (Although the PCOS is much better without the obesity, and the BED was a lot easier to handle in therapy without the guilt)

    You can recognise the unfairness and work on it, or you can just raise your hands, pretend it’s entirely out of your control and deal with obesity. Lots and lots of people opt for number two these days.



  • Tar_Alcaran@sh.itjust.workstoScience Memes@mander.xyzSpicy Air ☢️
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    5 days ago

    Solar is cheaper, even at high latitudes like in northern europe, even for baseload application with big battery buffers right next to the solar farm.

    Honestly, that sounds extremely unlikely. I don’t live that far north in europe, and while I manage about 0kWh on my residental panels on a yearly basis. Thanks to seasonal changes, I would either need 4 more rooftops to keep the power on during january, or I would need to bank something like 700kWh to make it through 3 winter months. That’s not counting the electric car, or heating. Heating would roughly quadruple the numbers (being almost entirely clustered when solar isn’t producing), and the car would add roughly another house on top (assuming 50% is charged away from home).

    Quick maths that I did because I wanted to try going off-grid: I would need ~100m2 of solar panels, and 2500kWh of battery storage. Or on a national level, 63 TWh of storage as well as just under a 1000km2 of solar panels if everyone lived as low-footprint as we do. And that’s just housing, it doesn’t include commercial buildings or industry.

    The big buffers next to the solar farm are actually quite tiny. The largest under-construction battery park in the netherlands banks about 1200 MWh. With an average househould consumption, that’s just about enough to carry some ~4000 2-person households through the 3 winter months, assuming you put down enough solar to meet your yearly energy household energy demands (which we don’t have). They’re obviously not meant for long-term storage, but long-term storage is exactly what you need to make solar work.

    And nuclear doesn’t have any of these issues. The only issue is that it’s expensive, because we stopped building them.