• 9 Posts
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Joined 1 year ago
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Cake day: June 12th, 2023

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  • That’s kinda the same thing tho. The entire scale gets moved up, because there is more energy available in the atmosphere and water to form and power storms. So when all the storms get more powerful, you get more hurricanes, because in the past those would not have grown big enough to be classified as such. Small local storms can more easily grow to become larger, having a bigger impact. And wind patterns can change as well, so it’s very complex and hard to predict. The one thing we know for sure: it’s bad news.


  • Thanks for the clarification, pipes look like copper but might be cast iron.

    Still doesn’t fit with the explanation, aluminum has more resistance than copper, but not that much more. The resistance of cast iron is an order of magnitude higher than aluminum. So it would still be the lowest resistance in the circuit and thus the coolest part.

    And cast iron is pretty good at conducting heat. Not as good as copper or aluminum, but still pretty good. We’ve been using the material to make pans and pots for cooking because of it’s thermal properties. So the heat wouldn’t just stop at the fitting, but continue on at least some ways.

    Moreover it’s physically impossible to get aluminum hot enough to glow like this and still keep its shape. It melts at 600 degrees C, well below the point where something gets red hot, let alone yellow like this. If the aluminum were to be this hot, it would be in a puddle and at risk of burning.


  • Thorry84@feddit.nltoLemmy Shitpost@lemmy.worldInstallation
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    1 day ago

    This makes no sense at all.

    Why would only these two specific pipes get hot, so hot to glow, but not the other lines connected to it? And not the fittings around it? It’s all copper, so even if the power itself doesn’t heat them up, why would being connected to an extremely hot pipe heat it up. Since it’s you know copper and being good at transferring heat is what it’s known for.

    And why would the lower resistance part be the part that get hottest? Low resistance means less loss, so those parts would in fact be the coldest of all.

    Plus thin walled copper pipes can’t get so hot they glow without melting or at the very least lose all structural integrity and break.

    And a downed power line with a short to ground would almost immediately turn off. It’s when there isn’t a direct line to ground those things are dangerous. As soon as it shorts, it gets turned off at the source to prevent further damage, fire and not cause issues upstream.

    Either it’s Photoshop or someone has wrapped led lighting around some pipes.







  • Most of the bots on Lemmy have been well meaning, but ultimately annoying.

    The issue is there isn’t really a lot of traffic on Lemmy. And from the people that are here a lot of them are lurkers, just consuming, maybe upvoting once in a while, but that’s it. This leads bots that reply to a lot of comments/posts to become a large part of the traffic and thus the experience for the users. There isn’t enough for the bots to get lost in the noise. This also leads to the user experiencing the feeling of only interacting with bots, instead of other people. Most people commenting are looking for people interaction and get annoyed when they think they have such an interaction only for it to be a bot.

    Lemmy is also very focused of an audience at the moment, which leads to bots not really being necessary. People here are usually very tech savvy and know how to do most of the things. A bot that explains how to do things people already know how to do comes across as unneeded.



  • It’s just an electric field man, we create those all the time. The interesting part is that we figured out how this field is created that causes the outflow of particles at the poles. That outflow has been known for a long time, the field has been theorized to exist for a long time (how else would the outflow occur?), they’ve now just confirmed it does in fact work the way they thought it worked.

    While this is cool science and very interesting for people that study for example geology, it isn’t changing the world or anything. Don’t let your head be turned by sensationalist media. This isn’t new physics, the field is very weak and it’s a normal EM field just like the ones we use every day all day.

    In principle it’s possible to launch something into space using an EM field. That’s called a rail gun and the military has prototypes that shoot projectiles at hypersonic speeds. However due to the forces and currents involved, the thing is massive, requires a whole lot of power and cooling and as a bonus self destructs after one or two shots. The acceleration also means that it’s great for shooting at stuff and destroying it, but not that useful for transport.

    A rocket on the other hand can be very small (the Electron rocket is only 14 meters and can put 300kg into LEO), easy to transport, easy to maintain and fuel and with a much smaller chance of self destructing. Thus we use rockets to put stuff into orbit.

    Beyond the solar system is totally impossible with our current tech. Voyager 1 and 2 might be considered interstellar probes, but they are tiny and took 50 years to get there. And they are going so slow, that while they have left our solar system, they aren’t really going anywhere. It will take them tens of thousands of years to even make it to the Oort cloud of our solar system, which by some metrics is still inside our solar system. We are currently struggling getting humans to the moon for a few days, so beyond the solar system is firmly in the realm of fiction.




  • Thorry84@feddit.nltopics@lemmy.worldHubris
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    5 days ago

    I still cringe every time a news story is posted about this. It always says the occupants are presumed dead, but no bodies have been recovered. Sometimes it even says no bodies have been recovered yet.

    To quote xkcd “You would just stop being biology and start being physics.”. There are no bodies, these people simply ceased existing. An implosion at that depth means everything inside gets pulverized.