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Cake day: July 15th, 2023

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  • You actually have gotten a bad explanation. There’s no such thing as being “a little too fast” which would cause this effect, and there definitely is no “spiraling out” due to inherent speed/momentum.

    An object in orbit of another remains in orbit as long as its horizontal velocity is high enough to not be pulled into a collision with the parent, but low enough to not escape the gravitational pull altogether. The closer to the parent, the stronger gravity affects the object, so you have to go faster horizontally to keep “missing” the parent, making gravity only pull you into a circle around it instead. That’s why it’s also called orbital speed: the object is not going straight in a line, it travels at speed in an orbit.

    If you want to change an orbit, you need to accelerate or decelerate. This energy has to come from somewhere. And obviously, the direction you accelerate in matters. If you speed up horizontally, increasing your orbital speed, you’ll get further away from the parent, but by moving further away, your orbital speed will decrease and be lowest at your furthest point. Then, if you don’t keep accelerating, you’ll start to get closer to the parent again, which makes you go faster. This is an elliptic orbit.

    If you go fast enough horizontally, you eventually can get so far away that the parent’s gravity influence becomes negligible, and the gravitational influence of another parent matters more. This is called reaching escape velocity. If you leave earth orbit, this is usually the sun.

    If you were to simply slow down the object in its orbital speed, the object would get closer to its parent until it collides.

    If instead of accelerating the object “forward”/horizontal to human observer on earth, you’d accelerate “up”/away from the earth, you interestingly would not cause the object to get further away from its parent. Yes, you’d move higher up, but that would also mean that you equally slow down along the “forward” axis. So as explained before, if you stop accelerating, the object will start being pulled by gravity again until it reaches its now even closer than before proximity to its parent, half an orbit later on the other side. Because it’s now closer to the parent, it has sped up and will then start moving away again, another elliptic orbit has been achieved.

    And if you accelerate “sideways”, so neither away from the surface nor forward along the orbital path, you actually change very little: you only affect the inclination of the orbit. Usually we think of objects going around the equator, but they don’t have to. An orbit can go any which angle, even rotating around the poles, going South to North or vice versa.

    So long story short, how does the moon speed up? It doesn’t have and rocket engines or similar. The reason is the vast difference the earth and the moon rotate around themselves. The earth takes 24h to rotate. The moon takes roughly 27.3 days to rotate a single time. This causes the Earth to “push” the global tidal waves around its oceans much faster than the Moon gets pushed. This actually causes the moon to get “dragged along” a tiny little bit on every tidal rotation. This not only speeds up the rotation of the moon itself: the moon is so slow that it doesn’t have time to transfer all that rotational energy before the tidal wave on Earth has moved on the surface to be a bit on front of the Moon. This is the moment where the Earth’s center of gravity is a tiny bit “forward” of the middle of the Earth. This in turn pulls the moon forward along its orbital path, speeding it up horizontally. Obviously, this also means that Earth’s rotation gets actually slowed down by the same amount.

    All these effects are incredibly tiny! The moon moves “away” at 3.8 cm per year, whereas it will take 50 years for an earth day to be a single millisecond longer.


  • A mesh surface is not automatically longer lasting. Quite the contrary, actually:

    Mesh is “less material per surface”. This means more stress is put on the strands than for a full cover upholstery.

    Mesh is open, which over time means that dirt and grime will start gathering in the cushion beneath the mesh. This can end up pretty nasty over the years of heavy usage.

    In the end, it’s always about proper materials: good quality foam exists and are used by some, but obviously it’s usually more expensive. Same for the surface material: there’s super cheap PVC leather that will start flaking off in weeks, and there’s high quality PVC leather that will last a decade. Or just go for real leather if you got the money. All of the closed surfaces have the advantage of being incredibly easy to clean and maintain: simply wipe them with a wet towel. For real leather, only a tiny bit of extra care is needed ( waxing ).


  • Senshi@lemmy.worldtoLemmy Shitpost@lemmy.worldDid it hurt?
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    3 months ago

    If you have to say it often, it might indicate you have trouble formulating your initial advice in a way that is acceptable to people.

    Nobody likes to be told they’re wrong, so it helps to be empathetic about it. Packing your advice or instructions into a tactful and diplomatic approach doesn’t cost you much, but makes it much more likely for your advice to be accepted and implemented. And the recipient will usually end up being grateful for having avoided a mistake. They might even start to look for your and ask advice in the future. And if you keep doing that, he might even consider you a nice person or even a friend.

    An arrogant and condescending approach will only do harm, even if you are factually right.


  • What’s your source on the reverify thing? I use matrix a lot, and this hasn’t been an issue I ever experienced anymore since they introduced cross-signing a couple years ago.

    Same goes for the common clients such as element. It has been clunky in the past, but after the past major overhauls ( also years ago now) everything has been silky smooth for me, if not better than others. The one thing left I prefer from Signal is the one-time photo share.

    Matrix is great, clients are great too, only the server part still is annoyingly complicated and messy. Would only recommend that for tinkerers, on that case it’s a great path to learning about the complexity of addressing lots of security concerns that others gloss over.

    Edit: to add - there’s a reason why the French government and the German military decided to build their secure internal IM infrastructure on Matrix. Obviously they are hosting their own private network, but if the concept is good enough for European government and military, it is an indicator for quality especially in terms of security and privacy.


  • I’ll still use the opportunity to voice my opinion clearly on this: Yes, forced circumcision on infants is only a very small step above the also still common practice of female genetic mutilations at birth/infancy. It does not matter what reasons you claim, only medical necessity should matter. Society should protect its infants from any religion or tradition demanding body modifications of infants.

    Leave people’s bodies alone until they can decide on their own what to do when there is zero proven medical benefit to doing it before without their informed consent.

    The common “improved hygiene” argument is nonsensical. You know what improves hygiene? Washing, and teaching kids how to wash themselves.

    Otherwise you could cut off ears using the same logic. No ears, no need to wash behind the ears.


  • I’m curious, why are you “happy it’s been done”?

    I live in a country where we don’t perform this procedure out of tradition/religion, or at least not in the majority. I’m only aware of it being done for specific medical pathologies such as phimosis.

    Because I kind of agree with the sentiment that performing unwarranted surgeries on someone that is unable to voice his (non-)consent is an ethical problem. Even more so with excisions, which always are drastically and usually irrevocably diminishing the body.




  • Depends what you expect. On a pro tournament level, nobody will use a vertical mouse. Usually they are a little bit heavier than regular mouses, plus they have a slightly higher center of gravity. This makes them a little bit more “wobbly” during ultra fast movements.

    However, for regular playing, they work just fine. I don’t play on pro level, but okay competitive shooters almost daily, and I haven’t noticed any real disadvantage. And it helped my wrists enormously, because I’m a full time office worker as well. I decided a couple years ago that the small theoretical disadvantage is not worth the risk of RSI and have been using the cheap CSL/Anker/whatever vertical mouses since. Only very recently I boughta second, regular mouse with more thumb buttons, useful for some sim games I play. I now tend to switch fairly randomly between the two, which probably is even better for hand and wrist.

    Additional info: getting used to a vertical mouse takes much less time than most people expect. Yes, it’s weird at first, but start working or gaming and you’ll stop noticing the different posture very quickly.



  • Senshi@lemmy.worldtoMemes@lemmy.mltitle
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    8 months ago

    Kind of a bad example, because mankind very clearly stems from ‘humankind’. And people are lazy and prefer using short words. The unfairness is rather that women got stuck with the words requiring more characters. But that is a phenomenon of the English language and not present in others.

    However, in most languages the words for man/male are closer to human(kind) than female/woman, which very clearly shows the historic patriarchal influence, coming back around to your point after all.


  • There are many special versions of torrent tools that allow disabling uploading. If course you still have to upload your requests “please give me block 1234 of file XYZ”, which some tools include in the transfer rate shown and others show separate as overhead or meta transfer rates. However, no actual file contents will be uploaded. This is important for some jurisdictions/nations. While both downloading and uploading content is illegal, uploading causes more “damage” ( it’s legally easy to claim proliferation of the uploaded content, multiplying the financial damage). Also, in some countries, it’s either but legal to track user downloads at all or not in a manner that would provide court-proof evidence. Proving illegal uploads is very easy: the legal company will simply use the p2p network itself, but record which blocks were received from what IP address at what time. This list in many countries is sufficient to get a court to order the ISPs to share info on who owned that IP address at that time, opening you up to a lawsuit.

    Thus example is how it works in Germany and must other EU countries. The exact approach obviously differs, because everyone has variations of privacy laws. E.g. not every country makes isps store IP assignment history for longer than necessary for billing purposes ( usually a month), whereas in other countries isps hand out that info even without court orders…

    Educate yourself and act smart. There is no magic protection when doing p2p piracy. Luckily, most companies do not care to pursue pirates. Others ( like kalypso media) are infamous for having partnered with legal companies whose sole purpose is to generate income by chasing pirates with intimidating and expensive “pay 800€ now or we sue you in court for millions” letters.



  • You underestimate how little money such a dlc makes. It’s the same reason why the promised SP addon for GTA 5 was cancelled. Return of investment is magnitudes higher for any GTA online content. Making a new car model is little effort and brings in millions of dollars.

    Having to deal with story, level design, voice actors and possibly animators or even Mocap: soooooo much more work. Sure they could do it, and even Earn good money with it. But online pay dlcs are so little effort for so much more payout , why even bother?

    Rockstar hated what FiveM did, even threatening them at the start because they were afraid it would compete with their own online service. And now they bought them up, but only after realizing how much more people ( or rather their wallets) they can possibly reach.


  • To each his own. Some prefer the original audio simply because it is foreign, making it easier to mentally dive into a fantasy world. Others get taken out of the immersion by having to read subs and not focusing on the screen all the time.

    Isn’t it great that nowadays we have a real choice, so everyone can enjoy media how they want?


  • Winter was still spent productively. Hunting/trapping/fishing/livestock all need handling. Farm land needs preparing, wood needs to get chopped. It was also a time to create & repair tools and housing or work on side hustles such as processing raw materials in a low level artisanal way ( e.g. weaving / fabric spinning ).



  • Exactly right. I just meant that it definitely still will be uncomfortably warm when you get in at first, but overall hear will be lower. So definitely use it!

    Preventing the interior from being hit by direct sunlight also has the huge advantage the once you let out the warm air, there are no superheated parts that continue to radiate heat for many more minutes, making the actual ride much more enjoyable as well.


  • It’s the same if it has this silvery surface which reflects radiation. Also don’t expect miracles. If you park in the sun, the air inside will still be super hot. The actual advantage is that your dash, steering wheel and seats won’t be lava when you get in the car.