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Cake day: July 6th, 2023

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  • bouh@lemmy.worldtoScience Memes@mander.xyzBees
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    18 days ago

    It makes it more dangerous : the sting is attach to the venom bag, so the venom bag gets to empty itself whole if it stays. Evolution would have chosen the survival of the hive, not the survival of the bee.

    One thing is weird though : you can extract the sting of a wasp with a pincer. The wasp will live through it. Why do the bee dies when it loses it’s sting and not the wasp?



  • It depends. There are riots in England currently because some racists don’t want anymore immigration. I’m pretty sure you can easily have a very heated debate with these guys. You may talk with a jew about Israel these days too.

    If you avoid hit topic with the wrong person, you won’t find strong opinions. But Internet bring people together, especially when they want to fight eachother.


  • bouh@lemmy.worldtoScience Memes@mander.xyzRadioactivity
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    3 months ago

    Ha ! Turns out I’m right after all : radioactivation can happen with all type of radiations. But neutron activation is the lowest energy one.

    You are right that it’s probably a contamination for the book though, and not directly an activation (although carbon can be activated and will be found in the book).


  • bouh@lemmy.worldtoScience Memes@mander.xyzRadioactivity
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    3 months ago

    I know quite a bit about radioactivity thanks to my studies. I was sure all radiations could activate something, but it turns out I was wrong apparently because I can’t find anything but neutron activation.

    I’m pretty sure alpha, beta and gamma rays can stick to a particle, often bringing it in an unstable state that will force it to release something to get into a stable state. That’s particle physics. And that’s why we call them ionising radiations : because they turn atoms into ions. But my memories are definitely fuzzy, and it was not were I was the best.

    Those radiations may only activate for a too short time to be useful maybe? I don’t know.




  • bouh@lemmy.worldtoScience Memes@mander.xyzRadioactivity
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    3 months ago

    Marie Curie studied radioactivity with pure and very active materials with no protection. The radioactivity of the notebook is indirect radioactivity, that is material that becomes radioactive after being exposed to powerful ionizing radiations. It must be noted that the notebook may not be deadly radioactive. And if it will be for 1500 years, it won’t be deadly for 1500 years. For reference, bananas tend to be radioactive too. And you are exposed to ionizing radiations when you take the plane.

    Chernobyl had two reactors burn iirc. Most of the radioactive material was in the reactor, but the fire made smoke out of radioactive materials. The quantity of smoke, in kg, that go out was significant, but it got diluted in the atmosphere and spread. Which means there wasn’t so much dust, in mass, that got in any one place. The dust is also not only uranium, but a combination of uranium and materials that were contaminated like the notebook. With the rain, the dust was washed and distributed more, and with the time, materials become less and less radioactive.

    Both the book and chernobyl are not dangerously radioactive. But because of the nature of radioactivity, care must always be taken.



  • What weakened religion is a long process going from the middle age to the modern world. It starts with the pope wars. It peaks with the religion wars in the XVIIth century. By this point the religious power was a political power like any other, but merely with a cultural hold on European populations. Which was the nail in the coffin.

    During this period, the Church radicalised itself as a defense mode. Which solidified the laïcal mindset of the Lumières. Basically the church entered a cultural war against science because it feared it would lose controle.

    Then the XIXth century happened. Monarchies got destroyed. And the Catholic Church got humiliated and destroyed as a political power. Socialism and communism appeared, and to state how progressive they were, they put the church in the same reactionary bag as the royalists.

    In the middle of this are the liberals who don’t care much about anything but profits. Si when democracy is on the rise, they are democrats. When royalty comes back, they praise the king. At least as long as they let them make good profits. And that’s what the church doesn’t let them do. Morale goes in the way of profit. It forbid slavery and exploitation. It’s against science. It promotes charity. That sucks balls for the liberals. But order is good, so why not being a believer but without the problems?

    It’s not science that made religion recess. It’s bad political decisions and alliances. Many renowned scientists were believers. Many still are. But somehow the religions are rejecting science because it doesn’t go into litteraly what their old fantasy book wrote. It’s a shame because religions could easily make a humanist evolution if they had the political will to do it.


  • Windows forced me to update to a version that has advertisement in it. It has built in network calls in the start menu. I would have to pay a licence and make an account, something I avoided for years. Sharing file on a private network is insanely hard to do and very buggy.

    Now I’m not a Windows admin, but I’m a Linux admin, so there are many, many things I know how to do on Linux and not on Windows.

    This made me realize that there is a bias: when something doesn’t work on windows, the something doesn’t work, or you only need to find how to hack it to work. But when something doesn’t work on Linux, it’s Linux that doesn’t work. That’s a double standard. The same kind of work or problems on Windows is ignored.

    There are so many things today to help people use Windows, like classes, professionals, help desk, it’s everywhere, for everyone, yet it’s somehow considered easy to use windows. BTW any organisation that made the move did saw it happen. I mean that many organisations moved to Linux and gave the support and formation for it to work, and it worked.


  • What the fuck?! This shit with tiltok is one of the ugliest imperialist shit the USA pulled this century, dropping the rule of trade to the full on empire mode, and you’re talking here about whataboutism?

    We have a country literally stealing a company because it’s profitable and can spread influence! And you’re here like “China bad”?

    Is this the strategy? Anytime something bad from the US comes up you deflect for it to be about China I guess?




  • An addiction is defined by two things : first, it has negative effects on your life. Second, trying to stop it makes you miserable.

    Food for example is not an addiction, it’s a biological need. The need for socialisation is another one.

    Video games can be an addiction. But I’d argue that they’re usually not, they usually a coping mechanism. When they are, the problem is elsewhere, and the video games are helping you to survive through the problem.




  • I think you’re thinking backward. Internet is what it is because a single protocole unified it. Without it, you’d have island working with only one browser each, some would eventually die and with them large parts of Internet would disappear.

    Internet works on unified protocoles. Everything that challenged this model is bound to fail. That’s why javascript is so successful eventhough it’s so shitty as a language.

    Evolution can only be iterative.