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Brought my Celestron NexStar 6SE out on a camping trip last weekend and pointed it at the moon
  • Ah, this is probably the right community to ask.

    What are those stripes leading to the crater, here in the upper left?

    I've noticed them before, but when I try looking it up, I usually only find results for Saturn's moon.

    Beautiful picture, op!

  • Russia’s Warming Arctic Is a Climate Threat. War Has Shut Scientists Out of It.
  • As far as I understood, it'll leak into the atmosphere, where it'll cause 80 or 100 times more warming than CO² for a decade or so, before breaking down into good, old CO², causing further warming for centuries / millennia.

    Not sure, but I think I've also read that in the process of breaking down into CO², the ozone layer gets damaged.

  • The nation’s first commercial carbon sequestration plant is in Illinois. It leaks. | The locals are worried: “Just because CO2 sequestration can be done doesn't mean it should be done."
  • But if CCS operations leak, they can pose significant risks to water resources. That’s because pressurized CO2 stored underground can escape or propel brine trapped in the saline reservoirs typically used for permanent storage. The leaks can lead to heavy metal contamination and potentially lower pH levels, all of which can make drinking water undrinkable.

    Can someone explain this to me in a easy way?

    As a layman I would be worried of large amounts of CO² suddenly leaking near where people live. But how does it make water undrinkable? I thought some people like their drinks with CO². And where do the heavy metals come from?

  • LGBT + legal equality index, 2024
  • Yeah, this map is kind of misleading. According to this map, the country I live in is somewhere in the middle section. I've been living in a blue country, too. While the blue country may have more legality to the LGBT+ community, in reality there is public shaming and intolerance. People are often scared to come out. And the middle section country may not have wedding laws and such, but I've yet to meet a person (except foreigners) who makes fuss of LGBT+ people. They are a respected part of society.

  • Who all wants a silent spring?
  • I recently read somewhere that it's actually just very few bee species that die after stinging, among them honeybees. They have a barbed stinger that gets stuck while most bees have flat stingers and can sting repeatedly.

  • 73% of Young US Voters Eager to Support Candidates With Bold Climate Agenda
  • Read the Wiki and well, I dont know. It may be a climate agenda, but in my opinion being green isn't necessary being bold.

    Bold would be meeting at least what scientist recommend: halving emissions by 2030. I know, that's very much to ask for any country in the world. That's why it's called bold.

    What green parties all over the world are doing is: turn the rudder away from fossil fuels towards renewable energy. Which is a step in the right direction, but I think that's not bold. It's the least one can do.

  • This mirror is 100 times cheaper than mirrors for cheap solar electricity & thermal energy
  • Regarding solar electricity: does that mean to mirror the sunlight to a solar panel? If so: ignoring, that one would constantly need to adapt the mirror's position, I think I also read somewhere that solar panels decrease efficiency with heat. So my question is: could one increase solar panel output by bundling light or would heat related inefficiency cancel that out?

  • Increasing the efficiency of (some) refrigerators with commonly available foam insulation, potentially cutting yearly energy costs in half
  • I don't know where you live. But where I live, styrofoam costs next to nothing. In fact, you get it for free, if you don't mind looking through another man's trash. You can also probably get some for free if you ask a company, that gets stuff sent, that need cooling. Like a supermarket.

    For environment: styrofoam is a kind of plastic, so there is that. On the plus side, it's quite little plastic inflated with air.

    I assume it's way better than getting a replacement fridge, especially considering the electronics and maybe the coolant gas (I don't know if that's still an issue).

    I wouldn't be surprised if the electricity saved alone offsets the environment damage (assuming not fully green power used to run the fridge).

  • Undulating 🐍
  • It's not any snake, but some species that are adapted to living on trees. It's also not really flying. Gliding would describe what they do better. As they jump, they flatten their body and make slither movements through the air, gliding maybe at a 45 angle downwards.

  • Earth may have breached seven of nine planetary boundaries, health check shows | Ocean acidification close to critical threshold, posing threat to marine ecosystems and global liveability
  • I wish I had been old enough during the time we could've still made changes to make a difference.

    Why? When you cared back then the frustration must have been at least the same it is now. The hope might have been bigger, but at the same time, you would have been part of a very small minority. And I think it would have been hard to endure that almost nobody you know thinks similarly. You might have been the only doomer they know. And how fast we manage to screw up our planet, you would have likely gotten old enough to come to the same conclusion you came to now: we won't make it.

  • Mouse crawling out of meal forces plane to make early landing
  • Interesting. Even so much that after a 14 hour road trip I read a little more about it.

    The first thought was "hearing?" but then I remembered that I heard electricity before, standing next to a transformer.

    According to what I read this is something different, though. High voltage is audible due to ionized air in close vicinity, while home appliances can be audible due to AC power shifting magnetic fields and that can make internal components vibrate.

    Anecdotally, I believe I have heard close hitting lightnings - just before happening - in my power grid.

  • Mouse crawling out of meal forces plane to make early landing
  • Didn't read the article, but there was the worry mentioned in the title, that the rodents could have messed with the electrical wiring.

    Can anybody explain why mice like wires so much? Do they look like worms to them or do they have a electrocution kink or can they sense electricity somehow or something? Genuinely interested.

  • Titan crew said 'all good here' before submersible imploded
  • I assume that the submarine producer gives stats like empty weight from which the current weight can be calculated.

    However, weight isn't the important thing in a sub. It's the weight to volume ratio, or buoyancy.

    A sub sinks when buoyancy is negative and rises if the buoyancy is positive.

    There are three common ways to achieve the changing buoyancy: the most simple one is a vessel with positive buoyancy adding droppable weights until the buoyancy is negative.

    Other ways are a neutral buoyancy vessel that uses it's engine power to push itself up or down. Or a vessel that can change it's buoyancy by filling up tanks with water (to reduce buoyancy below neutral) and blow them out with air or other gases lighter than water (to raise buoyancy above neutral). A combination of several methods is also possible.

  • Confused about linux as always
  • Hey, welcome, fellow noob!

    I hopped on the Linux train maybe 20 years ago and haven't had any non unix system in maybe 15 years.

    Also, I don't know anything much. I can do basic tasks with a Terminal, but I don't think for example I could install Arch from scratch. Or if I'd accidentally opened VIM, I'd have to kill power to get out again. But I like to tinker. If you like to tinker it's a big plus, otherwise things, that don't work instantly, might get frustrating.

    As others said, use a pre built distro + DE environment, especially if you don't really know what you do. Another thing that I'd recommend: a distro that be backed up easily. So you can tinker and start over, if necessary.

    If I don't know, how to fix a thing, I usually look up my question online. The problem with that is: I'll find solutions containing commands that I don't know, what they do. I have "fixed" my OS to death before, so it's always nice to have a recent backup.

    Ubuntu is the biggest, although it's not old-school like win98 and comes with idealistic problems for many people. If you didn't really enjoy it, I wouldn't go back, just because it has the biggest community. Community isn't only about size.

    Mint is rock solid, I've run that a long time with different DEs.

    Another distro, I can't really recommend (as I haven't used it further than live USB yet), but might be very interesting for you, is MX Linux. It comes with simple DEs and more importantly: a ton of GUI tools (including a back up tool where you can back up the entire OS including apps and settings as a flash USB).

    I don't know, if I was able to help anything. I just wanted to reassure, that there are (maybe even many) Linux users that don't really know what they do.

    As with many skills in life, I believe, the best way to learn is by just doing it. There will be failures. And each failure is a big opportunity to learn something.

  • I can't see what I type while typing a comment.

    I'm new to this app here. I come from Boost and wanted to try something new. I do like the app, however I have issues writing comments or posts.

    My keyboard will cover the area where my text is, so while typing I am unable to read what I type.

    If I want to read or correct my text, I need to tab the back button to close my keyboard.

    I didn't find anything in the settings to prevent that. My keyboard is not floating.

    Here are some screenshots:

    !

    ^ I can't see the lower few rows of text.

    !

    ^ after tabbing back to close the keyboard I can read but not correct. Tabbing on the text will open the keyboard, which will cover my text again.

    !

    ^ installed version

    My phone is an Android Oppo A5s (CPH1909).

    Thanks for any help!

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    InitialsDiceBearhttps://github.com/dicebear/dicebearhttps://creativecommons.org/publicdomain/zero/1.0/„Initials” (https://github.com/dicebear/dicebear) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)SI
    sinkingship @mander.xyz
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