• 3 Posts
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Joined 2 years ago
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Cake day: June 17th, 2023

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  • cynar@lemmy.worldtoScience Memes@mander.xyzGravity
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    1 day ago

    Quantum mechanical particles are very different things to classical ones.

    A slightly better way of thinking about them is quantised fields. Particles and waves are simplifications of the underlying effect. There is no classical equivalent to work with to this, so we try and understand it as particle-wave duality etc.

    In this case, a carrier particle is a (quantised) disturbance in the underlying field. If it has enough energy, it manifests as a physical particle. The higgs boson is an example of this. Below the required energy, you get virtual particles. These “borrow” energy, and so can never be seen directly, only inferred.

    By example. Photons are the carrier particle of electromagnetism. Give the field energy and you get photons (light). Without that energy, the photons are virtual. Existing only between the 2 acting entities.

    Different fields have different carrier particles. The photon is quite simple. It’s effectiveness decays as 1/r^2 . The strong force carriers are more complex. They can emit more carrier particles, allowing the field to grow with distance rather than decay.

    To add more complexity. The various fields look to be aspects of the same field. At sufficient energies, they behave identically. We have figured out how to combine the electric, magnetic and weak fields. We have a handle on the strong field. The higgs field seems to also match into this. Gravity is a pain to study. We assume it should match in, but haven’t managed to work out how yet.

    As for why the underlying field exists and follows the rules it does? We have no clue right now. The ‘why’ tends to follow the ‘what’, and we have yet to get a good handle on the ‘what’.






  • Be careful with the taking average mindset. It’s a default human one, and it’s being abused. A lot of media outlets (particularly American right wing) are mouthpieces for the same few groups or people.

    Instead, try and look at their biases. Do they have a reason to mislead you. What akin do they have in a particular game. E.g. the BBC is still fairly unbiased on a lot of world news. They are far less unbiased on middle eastern politics now.

    It’s an annoyingly complex problem to solve, on the fly.





  • cynar@lemmy.worldtomemes@lemmy.worldWho remembers this?
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    15 days ago

    I can’t see it as anything but white and gold. However, other photos clearly show it is black and blue.

    Interestingly, if I’m scrolling past, my brain will sometimes perceive it as black and blue for a fraction of a second. I can normally flip optical illusions at will. This one jams me in the wrong viewing mode.



  • Some companies are still trying.

    I’ve got a ulefone 27T. It’s the phone equivalent of a tank. It also includes thermal and night vision, and underwater video modes. I would also give it good odds of surviving being used as a self defence weapon.

    Downside is it’s a relatively unknown Chinese brand.



  • Unpicking your personal maladaptations helps a lot. This is how therapy and medication are so useful, particularly in tandem.

    Two of my big maladaptations were using stress to drive me through, and berating myself when I didn’t do as well as I knew I could. It turns out that this is quite corrosive to your wellbeing, and that wellbeing is the foundation supporting your self driven. I was consuming myself for fuel.

    I’ve gotten a lot better at redirecting my irritation. I don’t get mad at myself for not doing the washing up. I get mad at the washing up for existing. It’s a subtle, but powerful difference. I still do both, far too much, but I’m getting better at it.

    Lastly, remember to bask in your glories. We tend to forget to enjoy the results of our effort. We just move on, and so don’t get the dopamine hit. Set aside at least 10% of the time taken to bask and feel proud of yourself. To show off and enjoy. Suddenly your brain has a positive reason to power through, rather than just avoiding a negative.





  • There are a bunch of characteristics that, while fairly arbitrary, can’t be changed once they are locked in. The mappings from RNA to proteins are a good example. Changing it is instantly lethal to the cell involved. Others include the chirality of amino acids, and the choice of bases for DNA.

    If we look at the entire tree of life, we see no deviations in these deep characteristics. This implies that they were fixed before we all split. There might have been alternative variations in the past, but none have survived to the modern day (that we have identified).

    This goes double of eucaryotes (basically everything other than bacteria). The design is so unique that convergent evolution is highly unlikely to stumble into the exact same layout from 2 sources.



  • There’s a rubber seal inside the lid that stops them leaking. The milk etc can get behind it, where normal washing won’t get. It can get funky if you don’t clean it out.

    Parenting mostly isn’t that hard. You just have to keep all the proverbial plates spinning. Unfortunately there are FAR more than you expect, and you never get a break. You will miss some, then beat yourself up for missing something so simple.