Thorry84

@Thorry84@feddit.nl

• ⁨Comment⁩ on ⁨This startup wants to use the Earth as a massive battery⁩ ⁨⁨1⁩ ⁨week⁩ ago⁩:

  I would think all the incidents with fracking have shown rock not to be as impermeable as one would expect or want. Doing this and not causing huge issues seems very hard to me. And also very situational, which is a big problem pumped hydro has.

  Pumped hydro works really well and is just about as efficient as we can realistically do, but you need to have the right circumstances. Like a biggish elevation difference, a place to store enough water at the top and bottom for it to be worth while and a connection in between to pump through and take out the energy in the other direction. Plus close enough to a place that needs the power not to be killed by transport losses.

  This thing seems to require the perfect conditions as well, which may prove even harder to find compared to places for pumped hydro.

• ⁨Comment⁩ on ⁨If I wanted to bury a hard drive for archival purposes (e.g. Country becoming Dictatorship), how to keep the contents from being damaged and where is the safest place to bury it?⁩ ⁨⁨1⁩ ⁨week⁩ ago⁩:

  You would need to investigate the soil you put the wood in, in order to select the correct wood and wood treatment. The wrong kind of wood in certain soils can be broken down in weeks to months. Getting wood to last years is tricky and depending on the soil could even be impossible.

• ⁨Comment⁩ on ⁨Dying Light: The Beast looks absolutely brutal in the new trailer⁩ ⁨⁨1⁩ ⁨week⁩ ago⁩:

  Yeah The Following was pretty good. I also really liked all the community shit they did, like those freak gnomes that would come out at xmas. We laughed so hard about that one. I don’t know who did the community event management for DL1, but they kept it going for so long, it was great.

• ⁨Comment⁩ on ⁨Dying Light: The Beast looks absolutely brutal in the new trailer⁩ ⁨⁨1⁩ ⁨week⁩ ago⁩:

  Dying Light 1 was excellent, loved it a lot and played it a lot.

  Dying Light 2 was terrible, I don’t know why it got as much praise as it did. It had zero enemy variety, copy pasted assets all over the place, entire copy pasted missions. The whole night time stuff was a joke because the AI was so terrible. It ran like shit on release. The story and characters weren’t interesting at all, where this was a strong point of the first game.

  So I don’t know if I trust them for a 3rd time. They had beter come out swinging with a real banger.

• ⁨Comment⁩ on ⁨Anon learns a new spell⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  I think Buffy taught us that you’d be surprised what can be killed with a shoulder fired anti-tank weapon.

• ⁨Comment⁩ on ⁨It do be like that⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:

  Checkmate liberals

• ⁨Comment⁩ on ⁨It do be like that⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:

  SOURCE!?!?!?!

• ⁨Comment⁩ on ⁨How has it been so long?⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:

  My pussy

  And my crack

• ⁨Comment⁩ on ⁨So, not?⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:

  That’s still very cheap, the 1€-Store near me has almost nothing at 1€ anymore. It’s become more like the 5€ store.

• ⁨Comment⁩ on ⁨😭😭😭😭😭⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:

  Unfortunatly even when you are in the hospital when this happens and everyone around you is aware of what’s happening fast enough to act, it’s probably still fatal. Often times this happens deep inside the brain, there is no way to get someone into brain surgery fast enough. And even if somehow the doctors can get in there, often there is nothing to be done. If it’s deep in the brain, there is no good way of getting in there without causing a lot of damage and depending on the exact situation it can’t even be fixed.

  It’s just one of those really sad things that happens without anybody being able to do something about it.

  This is unfortunatly common in my family and I’ve had family members eating themselves up about it, if they just acted faster and got them to the hospital faster. But everyone from the hospital side was very clear about this, there is nothing that anyone could have done.

• ⁨Comment⁩ on ⁨Solar powered personal umbrella with battery?⁩ ⁨⁨4⁩ ⁨weeks⁩ ago⁩:

  People always severely underestimate how little power solar panels actually produce. In optimal conditions they get around 1000 watt per square meter, but are only around 20% efficient. So that means 200 watt produced at the panel. Once you convert that into something useable and transport it to where you need it, you’ll probably lose another 5 - 10%. And that’s a square meter, that’s more than you can comfortably carry. Think a flat panel of around 2 meters in length and 0.5 meters wide and lifting that above your head, pointed perfectly at the sun.

  And the reality is, most solar panels even in permanent installations don’t experience perfect conditions. They don’t track the sun, so most of the time they aren’t perfectly aligned to catch all that energy. They are most likely never aligned perfectly, or if they are just a few days out of the year for like an hour a day. The sun isn’t always out, not just because you know night time, but also because of clouds and other weather or human related stuff. Lots of times there are shadows that prevent optimal workings. Dust and grime also plays a part. But another thing is temperature, solar panels are rated at around 20 degrees C. But when you put a black thing in full sun, you know it’s going to get scorching hot. This also reduces the amount of energy you can usefully extract from the sunlight as well.

  The annoying thing about solar panels is they aren’t linear at all. It isn’t like when conditions are 80% from optimal, they produce 80% of the power. No, usually it’s more like 60%. And once you drop below 40% of optimal, you just produce basically zero. With a bit of effort this can be improved upon. For example I use microinverters which can regulate each panel individually, but even then it’s not great. And that’s with state of the art panels, which are very fragile, so they have a sturdy metal frame, a very tough plastic backing and a big ass layer of glass on top to protect them. If you get those more sturdy thin and light panels, you’ll be lucky if they get 15% efficiency (most likely a lot less).

  So putting solar on anything that isn’t a permanent installation is usually pointless. It’s way too hard to get those ideal conditions and the panels aren’t very good to start with. If it’s moving, it’s hard to point at the sun all the time. Exception are maybe a small panel on the top of a campervan, which is probably the best case for a mobile installation and gets just a little bit of energy. But only if it doesn’t distrub the wind profile of the van, otherwise it probably costs more in gas to push it along at high speed than it ever delivers back in electricity. One of those small foldable panels can also be useful when hiking for example. You can carry it collapsed on your back and if you take a break, you can fold it out, point it at the sun and get some useful energy for a couple of hours while you get some rest. Putting it on when hiking would be pointless, as it would be bulky when folded out, usually not pointed at the sun and under cover of trees for example.

  Maybe the technology will improve in the future, but for now any useful personal solar is very niche.

• ⁨Comment⁩ on ⁨Help prevent teenage agricultural addiction⁩ ⁨⁨4⁩ ⁨weeks⁩ ago⁩:

  Buffy <3

• ⁨Comment⁩ on ⁨oops⁩ ⁨⁨5⁩ ⁨weeks⁩ ago⁩:

  I think my face scrub still has these. But I would have to check, it might be just sand they put in there. Works great tho

• ⁨Comment⁩ on ⁨Anon does some online shopping⁩ ⁨⁨5⁩ ⁨weeks⁩ ago⁩:

  I use Arch BTW.

  Teams runs on just about anything, which is part of why it’s so slow.

  Back in the day Windows 98 was definitly faster than SUSE on my machine. Drivers back then on Linux were rough and if you wanted to play a game you’d need Windows or DOS for sure.

  I only had 56k dialup back then, no fast internet for me.

• ⁨Comment⁩ on ⁨Elon Musk's AI chatbot, Grok, started calling itself 'MechaHitler'⁩ ⁨⁨5⁩ ⁨weeks⁩ ago⁩:

  Yes sir, we finally fixed it. It now no longer denies the holocaust.

  Excellent work Jenkins! We’ve finally created the perfectly balanced and fair AI!

  Well there is this one little hiccup sir. It now recommends a second holocaust and calls itself MechaHitler.

• ⁨Comment⁩ on ⁨Anon does some online shopping⁩ ⁨⁨5⁩ ⁨weeks⁩ ago⁩:

  Yeah but then they pull the old you need to enter everything to get the delivery costs. I understand they need my address to figure out what shipping would cost. But they also require my name, email and phonenumber before showing the shipment costs. So annoying, it makes comparing prices between shops impossible as some shops have higher prices and free shipping, where others have super low prices, but then fuck you on the shipping.

• ⁨Comment⁩ on ⁨Anon does some online shopping⁩ ⁨⁨5⁩ ⁨weeks⁩ ago⁩:

  And everything is SO FUCKING SLOW. I swear my old Celeron 300A at 500mhz running Windows 98 and SUSE Linux was super responsive. Everything you clicked just responded right away, everything felt smooth and snappy. Chatting with people over the internet using ICQ or MSN was basically instant, all the windows opened instantly, typing had zero latency and sending messages was instant.

  My current Ryzen 5950X is not only a billion times faster, it also has 16 times the number of cores. I have hundreds of times the RAM as I had HDD capacity on that old system. Yet everything is slower, typing has latency, starting up Teams takes 5 minutes. Doing anything is slow, everything has latency and you need to wait for things to finish loading and rendering unless you want everything to mess up and you’d have to wait even more.

• ⁨Comment⁩ on ⁨Gelatine⁩ ⁨⁨5⁩ ⁨weeks⁩ ago⁩:

  Yes, I love those. Especially the rainbow candy is excellent!

• ⁨Comment⁩ on ⁨Gelatine⁩ ⁨⁨5⁩ ⁨weeks⁩ ago⁩:

  It’s good to see more and more vegan candy being sold. These days I’ve even come to expect it. When it isn’t advertised on the packaging I check the ingredients and more often than not I see they are in fact vegan.

• ⁨Comment⁩ on ⁨Barbers HATE this one simple trick⁩ ⁨⁨5⁩ ⁨weeks⁩ ago⁩:

  3 years? I’ve been bald for 20 years and I’m 300K down the hole, when does this trick kick in exactly?

• ⁨Comment⁩ on ⁨Sure honey⁩ ⁨⁨5⁩ ⁨weeks⁩ ago⁩:

  I think the costume is pretty much impossible to move in. She can’t turn her head vertically at all and her arm don’t go to anywhere near her body.

• ⁨Comment⁩ on ⁨Corporations are saving the planet!⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  Really? I never heard that before. What would they care about how their caps are? I can’t see it having any impact on them at all. A lot of people got pissed about it when Coca Cola was one of the first to change the caps in line with the regulation, so if anything it hurt Coca Cola.

  Also even though large corporations are almost always totally evil, it’s not impossible for them to do something good as well. Probably not for the right reasons, but still, one thing doesn’t exclude the other.

• ⁨Comment⁩ on ⁨Earned my belly today⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  Isn’t the proper technical term a “spaghet”?

• ⁨Comment⁩ on ⁨how do I stop itching?⁩ ⁨⁨1⁩ ⁨month⁩ 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 ⁨month⁩ ago⁩:

  I’m only working half day today and to be fair it’s more like hardly working than working hard.

• ⁨Comment⁩ on ⁨*hiss*⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  Over 25 years later and I still think of animal crackers when I hear that song

• ⁨Comment⁩ on ⁨What's up with all the moth memes?⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  Return to beans!

• ⁨Comment⁩ on ⁨"There can be....⁩ ⁨⁨1⁩ ⁨month⁩ 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 ⁨month⁩ 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 ⁨month⁩ ago⁩:

  You are very welcome! <3