Thorry84
@Thorry84@feddit.nl
- Comment on Earned my belly today 13 hours ago:
Isn’t the proper technical term a “spaghet”?
- Comment on how do I stop itching? 1 day ago:
What did the doctor say? You may have a fungal infection, where the welts and itch aren’t caused by dryness or the scratching, but by the fungus. It’s actually really common and can be extremely annoying if left untreated. Some miconazole nitrate cream can really help out with this, just a few weeks of applying twice a day and it’ll clear up.
But never take medical advice from the internet, go see a doctor and ask them what to do.
- Comment on Be honest whose actually working today and who is goofing off 1 day ago:
I’m only working half day today and to be fair it’s more like hardly working than working hard.
- Comment on Trump social media site brought down by Iran hackers 5 days ago:
Yeah these are the dicks that cried terrorism when Tesla was “attacked”
- Comment on What's up with all the moth memes? 6 days ago:
Return to beans!
- Comment on I have discovered chat IS cute and so are you <3 6 days ago:
Thanks for not giving in to the Debbie Downers. Confirmed mods are cute as well <3
- Comment on I have discovered chat IS cute and so are you <3 1 week ago:
Chat is in the chat room, so if you are in the chat room, then yes.
- Submitted 1 week ago to showerthoughts@lemmy.world | 11 comments
- Comment on "There can be.... 1 week ago:
To the people who understand this meme: I hope your back is a bit better today, take care not to stoop down too much.
- Comment on If you were to launch a rocketship parallel to the earth, on wheels, how big would the ramp have to be to get it into space? 1 week ago:
Yes
As long as the object doesn’t reach escape velocity, it’s in orbit and thus bound by the primary object. Now this orbit can by very weird and huge, but it’s still a loop. Only above escape velocity does the loop “break” and leaving the object without a guaranteed return is possible.
So in theory if an object is in orbit and the boost is sufficient, it can just leave. However even then it is subject to the gravity fields and will make an arc instead of just a straight line. So “point and shoot” is never really an option. But often in movies a small spacecraft is seen making a small maneuver and somehow being seen as lost to space. That will for certain not be the case, a small boost just gives you a different orbit, but an orbit still.
For example the movie Life (2017) comes to mind. Spoiler alert. In the end they decide to use an escape pod to launch into “deep space” with the alien. The escape pod just points up and fires the rocket for a short while and now is lost to deep space forever. This is total nonsense. The reason escape pods can work with very little fuel is they often have just enough oompf (or delta-V if you want to be technical) to put the pod into a slightly lower orbit. This lower orbit means more drag from the atmosphere which slows it down further, lowering the orbit again etc. until the thing is slowed enough it can totally re-enter and land. It isn’t like an escape pod pointed down goes to Earth and pointed up goes into outer space. The pod actually fires in the direction of the orbit, so horizontally, in order to slow it down.
Orbital mechanics get really weird really fast. For example slowing down can cause the orbit to become higher before it goes lower. And putting in energy sideways can alter the angle of the orbit just like those spinning flywheel desk toys. Playing around with orbits in Kerbal Space Program can give a better understanding and can even make the concept of delta-V very easy to understand. KSP players would be unable to watch the movie Gravity (2013) for example without screaming at the screen: “THIS IS NOT HOW ANY OF THIS WORKS”.
It’s hard to figure out, that’s why we refer to hard things as “rocket science”. It’s not just the complexity of the rocket as a machine and engineering challenge. But also figuring out stuff like orbits, taking into account the different gravity fields of objects that are of note. Doing things like gravity assists or Hohmann transfer orbit, taking into account the influence the extremely thin atmosphere has. And remembering everything moves, so shoot for where the target is going to be, not where it is now.
- Comment on If you were to launch a rocketship parallel to the earth, on wheels, how big would the ramp have to be to get it into space? 1 week ago:
You are very welcome! <3
- Comment on If you were to launch a rocketship parallel to the earth, on wheels, how big would the ramp have to be to get it into space? 1 week ago:
There is a few different concepts here in conflict, which is why the question is hard to answer.
What do we mean when we say space? Usually we mean above the Kármán line, or above 100km. At that point you are above almost all of the atmosphere, so we consider that space. The atmosphere does actually extend quite a bit above that, but at that point it’s so thin we consider it to be space.
However as we know, the Earth has a bunch of gravity from its mass. So when you get up to 100km you just fall back down. Space isn’t free of gravity, the gravity of the Earth extends basically for ever. It’s influence does get less (thanks to Newton we know by how much), but considering the Earth is thousands of km wide when we get up to 100km we are basically still on the ground as far as gravity is concerned.
So why do we see astronauts fly around? They are weightless, so there is no gravity right? This is something popular media gets wrong a whole bunch, it’s not like there is some magically line called space and beyond there you are weightless. Those astronauts are actually in orbit, that’s why they don’t experience gravity from the Earth. To understand orbits, imagine we fire a big ass cannon. The ball flies through the air in an arc and lands on the ground. How far away it lands, depends on how fast we shot the ball. The faster it went out of the cannon, the further it flies. Now imagine we shoot the ball over the horizon, so it lands so far away we can’t even see it anymore. It still lands right? Yes, but only up to a point. It turns out if you shoot the ball fast enough, the arc just continues falling beyond the horizon until it loops around the Earth. As it is falling, it doesn’t experience gravity except for the arc it follows.
Usually when we put stuff into space, we mean put it in orbit and especially something called Low Earth Orbit . That means it needs to have a speed just like the cannon ball, to keep falling indefinitely. The speed we need is depended on how large the arc we want to have, or in other words how high the orbit is above the Earth. For context, if we want to fly in orbit in space so at an altitude of 100km, we would need to go almost 28254 km/h. Imagine driving that fast on the highway, it’s crazy fast.
That’s why we use rockets, it’s not as much about going up, it’s more about going really fast. So a rocket takes off and goes vertical for the first bit, this is to get to a thinner part of the atmosphere to reduce drag. Then it does something called the pitch over maneuver, usually in the form of a gravity turn. This is to go mostly horizontal and get that speed up. At the speeds rockets are going, they get to the 100km altitude in no time. So they pitch over as to not overshoot and use all their energy to go as fast as they can horizontally and thus into orbit. Then you get into the realm of orbital mechanics, which popular media also gets wrong a whole bunch. You can’t just point you spacecraft into space, give it a boost and be flying off into the void forever. If you want to learn more I would recommend playing Kerbal Space Program, to get a feel for how orbits work.
But say we are totally done with Earth and just want to leave it all behind, go into Deep Space. How would we do that? For that we need even more speed, something called escape velocity. If we get to that speed (40270 km/h), we can leave the Earth and go wherever we want, right? No not just yet, we might have left Earth behind, but we are still in orbit around the Sun. So we are still following orbital mechanics, only the Sun is the primary body we have to account for instead of the Earth. So we can use orbital mechanics to fly around the solar system.
If we want to leave the solar system, we would need to go even faster. But the issue is there is nothing out there. To get anywhere interesting, we would need to travel close to the speed of light for years. Even our fastest spacecraft are standing still compared to the speed of light, so leaving the solar system isn’t very useful right now. But we do have the Voyager space probes which kinda sorta left the solar system and we got some interesting data from them, which is cool!
- Comment on Button fly's 1 week ago:
I have both kinds and I don’t really care really. I just buy the pants because I like how they look, don’t even check what kind of fly they have. I have the ones with a regular zipper and 1 button, zipper with 2 buttons, no zipper just buttons, a little hook thingy button and fly combination. There are more important aspects of pants for me, like the fit, feeling, price and how they look.
- Comment on Celebrate my cake day 1 week ago:
1337 comments? You gotta pump those numbers up, those are rookie numbers!
I’m on 2213 right now, also joined around 2 years ago. So I would suggest it is in fact me who is carrying this network. Just kidding, we all know it’s Stamets@lemmy.world and by a lot.
- Comment on Amazon Doubles Prime Video Ads Per Hour 2 weeks ago:
Oi Ue, it’s fooking diabolical mate. Omelander topped me wife and now more ads on the tele, diabolical.
- Comment on Instead of asking all my stupid questions separately, could I just get a ton of "How to Adult" type resources in the comments? 2 weeks ago:
My personal advice: Take notes.
Just write everything down. I recommend an actual physical little paper notebook and a pencil. If you think: “Oh I must remember that” or “I’m almost out of …, I must buy more”
Now don’t go writing down stuff like fun facts or YouTube videos you want to watch. Make it all practical stuff, stuff you need to do or is important in your life. It’s your brothers birthday next week, write down the date and what you need to do to prepare. Your stomach hurt and you think you ate something that didn’t agree with you, keep a log of what you ate and how your stomach felt. That way you can identify allergies or things you can’t eat (anymore). Having trouble remembering names? Write down after you met someone: “Today I met Steve, Steve is in charge of accounting at Megacorp.” Measured the room you want to put new flooring in? Make a little sketch and put the measurements in.
Writing stuff down physically forces your mind to pay attention and remember it later in a structured way. It also feels really good to physically tick off a task or cross it off. It can be a bit hard to keep up with and not go the other way and put so much into it, it doesn’t help anymore. But it can help a lot, especially if you are the kind of person that thinks 8 times a day to put out the garbage, only to wake up the next morning and you’ve forgotten to actually do the thing.
- Comment on Why do websites now prefer IP-based geolocation rather than the `Accept-Language` HTTP header? 2 weeks ago:
I so hate the bad translations. Please just give me the app in whatever native language it was built in. And if I can’t understand that language, let me switch to English. It’s awful to use an app and have to translate everything yourself back to the native language to figure out what they actually meant and what went wrong in the translation.
And it’s especially annoying when errors and such are also translated. These often make even less sense and when trying to search the internet, it really helps if the error is in the language of largest user base.
- Comment on I can't keep up with the brain rot 2 weeks ago:
I think most young people are programmed to respond to “Hawk Tuah” by shouting “Rug Pull!”
- Comment on We Should Immediately Nationalize SpaceX and Starlink 3 weeks ago:
You are right in how wasteful it is, especially since it turned out a lot of those satellites don’t even make it to 4 years.
However there is zero risk of space trash with Starlink. They orbit so low, it’s basically within the atmosphere still. They need to constantly boost themselves, otherwise they fall down and burn up. So these satellites are coming down within years all on their own, even without any controlled disposal.
It’s insanely wasteful, but it keeps SpaceX in business launching every week, which is kind of the point. But at least there isn’t a Kessler syndrome waiting to happen.
- Comment on Microsoft announces new Windows changes in response to the EU's (DMA) Digital Markets Act for EEA users, including Edge not prompting users to set it as the default unless opened 3 weeks ago:
Thanks for the suggestion. It’s my laptop from work, I have zero say in what software it runs, I don’t even have admin rights on it. None of my personal stuff runs Windows. But it might help other people on their own machines.
- Comment on Microsoft announces new Windows changes in response to the EU's (DMA) Digital Markets Act for EEA users, including Edge not prompting users to set it as the default unless opened 3 weeks ago:
Please let them also remove all the XBox nonsense. The other day my laptop from work that runs Windows 11 Pro gave a big ass prompt if I didn’t want to try XBox Game Pass with the new Doom game. It’s basically an ad for games on a Pro machine, ridiculous.
- Comment on Fried 3 weeks ago:
How are you going to play that guitar Egg? You’re a fucking egg. Did your inside get scrambled? You ain’t got no bloody arms man!
- Comment on OpenAI sees human interaction as a competitor to ChatGPT's super assistant ambitions 4 weeks ago:
Ah you are from the US? No then it probably won’t be available. The US is very slow to make changes in retail. You only recently got those digital price tags that update constantly, we’ve had those for 10 years or so. In Europe the hand scanner or app self scan thing is very common.
- Comment on OpenAI sees human interaction as a competitor to ChatGPT's super assistant ambitions 4 weeks ago:
Yup, that’s the one.
I think where I live it’s a company that offers the whole thing white label to supermarket and other shops. The systems are very similar across a bunch of different stores, but the branding is specific to the store. So their logo, their colors. Not just on all the UIs (both the scanner and the checkout), but also the physical hardware colors.
The hand scanners all run Android, the other day I got one that said Google Play Services had crashed. The scanner itself is probably made by Zebra and then customized by the company providing the scan and checkout solution.
It has become super common around here, to the point where I’m annoyed when it isn’t an option and I have to use the self-checkout where you need to scan at the checkout.
- Comment on OpenAI sees human interaction as a competitor to ChatGPT's super assistant ambitions 4 weeks ago:
No, the hand scanners aren’t connected to the kiosks. They are at the entrance, you pick them up, scan all you want to buy. Then at checkout you place the scanner into a kiosk, it knows what you bought and you can checkout as usual. Every once in a while a store employee takes the scanners and puts them into the holders in the entrance. Depending on the size of the store there can be up to a hundred of these scanners available.
Other stores do the same, except your phone is the scanner with an app you can download. It works basically the same way. Most stores that offer the app also offer the hand scanners, which I prefer.
- Comment on OpenAI sees human interaction as a competitor to ChatGPT's super assistant ambitions 4 weeks ago:
For me personally, the self checkout is just a way better solution to the problem. It’s for me much faster and more efficient. It’s also easier for the store itself. The best kind of self checkout for me is where you can scan everything with a hand scanner or app whilst shopping. Then just pay at the self checkout and walk out. That way I just put the stuff in my bag directly, instead of from the shelf into the basket or cart. Then from the cart to the checkout and then from the checkout into my bag. It also spreads out the action of scanning the products, which means avoiding a slow and repetitive task scanning it all in 1 go. I’m also not blocking a checkout whilst scanning. I hate it when stores that offer the hand scanner have people scanning a whole cart full of stuff at the checkout. And then bagging it of course, which blocks a checkout for ages. Just go to the regular checkout if you want to do that, the cashier is faster than you are and you can focus on bagging exclusively.
However the lack of human contact is an issue. I’ve seen a lot of stores that offer self checkout recently make one or two lines available for chatting. It’s just the regular oldskool cashier, but they are relaxed about it and chat with the customer. This means people in a hurry or that don’t need contact right then can go fast through the self checkout. And people who like to chat can use the chatty checkout with a good old human being.
This for me is the best way to apply new tech, all of the benefits for all parties involved and hopefully none of the downsides.
- Comment on I am having a weird experience on the Fediverse. 4 weeks ago:
In trouble shooting it always important to answer at least these questions when asking for help:
- What are you trying to achieve, eg what is the end result you are hoping for.
- What is the expected behavior, or how do you think it should work?
- What is the experience behavior, so what actually happens and how does that differ from what you expected.
- What steps have you taken in trouble shooting. Are there things you’ve checked or ruled out? How so? What did you try?
This will help other people help you quickly and efficiently. This will greatly improve your chance of other people being able to help you, or you being able to help yourself.
- Comment on Xbox 360/PS3/(to a lesser extent) Wii owners represent 4 weeks ago:
Are you referring to the red ring of death on the Xbox? Because that has absolutely nothing to do with ATI. They just made the chips, it’s Microsoft that put them on the board. Most of the issues were caused by a poor connection between the chip and the board, not a hell of a lot ATI could do about that.
A lot of it was engineers underestimating the effect of thermals between 80 and 95 degrees for very long times, with cool down cycles in between. The thinking was this was just fine and wouldn’t be an issue. It turned out it was an issue, so they learnt from that and later generations didn’t really have that issue.
- Comment on I won a key code for life of p does anyone want it? 4 weeks ago:
Cool, thanks for the effort!
- Comment on AI is rotting your brain and making you stupid 4 weeks ago:
And for the most part this is true. People who don’t do little calculation puzzles for fun often have trouble with basic arithmetic without getting a calculator (or likely the calculator app on the phone). I know when I’m doing something like wood working and I need to add and subtract some measurements, I use a calculator. I could do it without, but chances are I would make a simple mistake and mess up my work. It’s like a muscle, if you use it, it will become stronger. If you don’t use it, it becomes weaker.
However there is a huge difference between using a calculator for basic arithmetic and using AI. For one thing, the calculator doesn’t tell you what the sums are. It just tells you the result. You still need to understand each step, in order to enter it. So while you lose some mental capacity in doing the sums, you won’t lose the understanding of the concepts involved. Second of all, it is a highly specific tool, which does one thing and does it well. So the impact will always be limited to that part and it’s debatable if that part is useful or not. When learning maths I think it’s important to be able to do them without a calculator, to gain a better understanding. But as an adult once you grasp the basic concepts, I think it’s perfectly fine not to be able to do it without a calculator.
For AI it’s a bit different, it’s a very general tool which deals with all aspects of every day stuff. It also goes much further than being a simple tool. You can give it broad instructions and it will fill in the blanks on its own. It even goes so far as to introduce and teach new topics entirely, where the only thing a person knows is what the AI told them. This erodes basic thinking skills, like how does this fit into my world view, is this thing true or false and in what way?
Again the same concept applies, where the brain is a muscle which needs to be given a workout. When it comes to a calculator, the brain isn’t exercising the arithmetic part. When it comes to AI it involves almost all of our brain.