• Activity
  • Votes
  • Comments
  • New
  • All activity
    1. The US's flirtation with nuclear powered jet aircraft

      If everything had worked perfectly, it still would have been a bum airplane." - Charles Wilson, Secretary of Defense Back in the 1950s and 1960s, the United States attempted to design nuclear...

      If everything had worked perfectly, it still would have been a bum airplane." - Charles Wilson, Secretary of Defense

      Back in the 1950s and 1960s, the United States attempted to design nuclear powered aircraft. This was part of a larger "nuclear craze" in the era where everything and anything was proposed to have nuclear technology applied to it. This led to all kinds of things like the Chrysler TV-8 and "peaceful" earthmoving construction projects. The only place where nuclear power or propulsion really took off was for large ocean going ships both for military navies as well as civilian tankers, cargo ships and icebreakers. Spacecraft technology was the only other "success story."

      Nuclear powered aircraft, while more realistic than say nuclear cars, never quite caught on except for a few experimental engines and just one actual working aircraft. The most extensive efforts towards this during the Aircraft Nuclear Propulsion (ANP) program were the HTRE-2 and HTRE-3 experimental nuclear reactors with heat transfer assemblies designed for nuclear powered aircraft at the Idaho National Laboratory. Rather than burning fuel, the jet turbine would use the heat from the nuclear reaction to heat air sent through a compressor which would then be expelled as exhaust for thrust.

      On of the more fascinating tests were the test flights of the NB-36H which while conventionally powered, flew while carrying a working nuclear reactor to test the protective shielding of the crew. It carried an air-cooled 1 megawatt reactor. The engineers and crew worked within a specially shielded nose cabin with 12-inch-thick lead-glass windows.

      The project was canceled by the Kennedy administration a few months after taking office in 1961 citing high costs, poor management, and little progress towards a flight ready reactor saying:

      At the time of termination, the Aircraft Nuclear Propulsion Program was still in the research and development stage, with primary emphasis on high performance reactors. Although a number of research and development achievements can be credited to this program, at the time of termination an airplane had never been flown on nuclear power nor had a prototype airplane been built. - Joseph Campbell, Comptroller General

      and

      Nearly 15 years and about $1 billion have been devoted to the attempted development of a nuclear-powered aircraft; but the possibility of achieving a militarily useful aircraft in the foreseeable future is still very remote. - John F. Kennedy, POTUS

      Footnote: This post is a rework of a reddit post I made here a couple years back. It's not really meant to be a coherent or lengthy article but has some links and thoughts which I found interesting.

      20 votes
    2. TIL that you can have a "chiptunes" like music play when GRUB (bootloader) loads

      I had to use the Arch Linux live boot usb today and I was pleasantly surprised to hear a short beepy music play when it got booted. It felt quite welcoming! In my particular case, it served quite...

      I had to use the Arch Linux live boot usb today and I was pleasantly surprised to hear a short beepy music play when it got booted. It felt quite welcoming!

      In my particular case, it served quite useful too as my laptop currently does not have an internal display, and nothing shows up on the external HDMI monitor until after the OS boots up, so it was quite reassuring as well.

      I have now configured my GRUB to play a small sound as well (since I have multiple bootloaders installed).

      How To

      1. You need to edit the config file /etc/default/grub.
      2. If you simply un-comment the line starting with GRUB_INIT_TUNE, it will enable the default tune which is a single and very short "beep" sound.
      3. Or, you can edit that line to have it how you want. Some suggestions: https://jdnash.com/api-makers/grub_init_tune-necropolis/
      4. Then update the grub config (requires root): grub-mkconfig -o /boot/grub/grub.cfg

      And you're done.

      Relevant Arch Wiki: https://wiki.archlinux.org/title/GRUB/Tips_and_tricks#Play_a_tune

      30 votes
    3. What have you been watching / reading this month? (Anime/Manga)

      What have you been watching and reading this month? You don't need to give us a whole essay if you don't want to, but please write something! Feel free to talk about something you saw that was...

      What have you been watching and reading this month? You don't need to give us a whole essay if you don't want to, but please write something! Feel free to talk about something you saw that was cool, something that was bad, ask for recommendations, or anything else you can think of.

      If you want to, feel free to find the thing you're talking about and link to its pages on Anilist, MAL, or any other database you use!

      21 votes
    4. I'm from the Reddit exodus. I'm really liking it here. What should I know?

      What do you long term users want to share about the culture? What about growth plans? The erudite discussion with (presumably) real people is what I love most, but I miss the really niche subs....

      What do you long term users want to share about the culture?

      What about growth plans? The erudite discussion with (presumably) real people is what I love most, but I miss the really niche subs. That needs more people.

      I just want to make sure this isn't "eternal July".

      109 votes
    5. Weekly US politics news and updates thread - week of July 3

      This thread is posted weekly - please try to post all relevant US political content in here, such as news, updates, opinion articles, etc. Extremely significant events may warrant a separate...

      This thread is posted weekly - please try to post all relevant US political content in here, such as news, updates, opinion articles, etc. Extremely significant events may warrant a separate topic, but almost all should be posted in here.

      This is an inherently political thread; please try to avoid antagonistic arguments and bickering matches. Comment threads that devolve into unproductive arguments may be removed so that the overall topic is able to continue.

      19 votes
    6. Star Trek: Strange New Worlds S02E04 - "Among the Lotus Eaters" Episode Discussion

      The first three episodes didn't quite hit the mark for me, but this felt like proper TOS style Star Trek. Starfleet messing up the Prime Directive. A villain who is actually a victim. Spock is...

      The first three episodes didn't quite hit the mark for me, but this felt like proper TOS style Star Trek.

      Starfleet messing up the Prime Directive. A villain who is actually a victim. Spock is challenged on feelings versus logic. The overall theme of exploring the importance of personal memories and the straight forward metaphor of fascist regime controlling the people, didn't feel as hamfisted as I have found some of the other newer trek episodes. It does stand on its own as a well rounded singular trek story. I do however still have a bit of a problem with how newer trek seems to like hand to hand combat violence so much. Feels unnecessary in most cases.

      23 votes
    7. Who has watched Jury Duty?

      Anyone watched Jury Duty? We just binged all eight episodes on a short vacation. We thought it was hilarious. No spoilers but I thought it was a great, quick watch.

      27 votes
    8. Comic collectors, how do you store and manage your collections?

      My current collection is over 3500 individual issues with the 2 most numerous publishers being Marvel and Image. To try and make things easier I have a series of boxes devoted simply to image...

      My current collection is over 3500 individual issues with the 2 most numerous publishers being Marvel and Image. To try and make things easier I have a series of boxes devoted simply to image comics, sorted alphabetically. The downside is when I go to add issues to the A-D box, it becomes full, so I need to move a chunk of the D's to box 2, which then fills up and need to keep shifting down until I need a new Image box for T-Z. Even more fun is I digitally track with CLZ app and have to make large moves there between boxes.

      Do you also fall into the same trap of constantly adjusting boxes or do you have a better system?

      15 votes
    9. As a cis het white male, how do I better understand trans and trans issues?

      I'm pretty high on the cis het side of the scale, but I'm an understanding and individual freedom loving person. I believe "to each their own" and support that strongly. I'm an elder millennial....

      I'm pretty high on the cis het side of the scale, but I'm an understanding and individual freedom loving person. I believe "to each their own" and support that strongly.

      I'm an elder millennial. While we used LGB slurs casually, I never really meant them as slurs against the community. It's just how my peers spoke. Trans was never on my radar at the time. (Maybe a little, but I figured it was much rarer than it appears to be)

      Homosexuality was always easy for me to understand. From a particular instance: "Do you like girls, Jackie? (Nod). Me too. That's cool." End of need to understand. Plus it was about a butt, and a butt is pretty sex/gender nonspecific.

      I also always felt honored when people came out to me.

      I just feel like I'm having trouble empathizing with trans individuals. I cannot imagine myself in that position like I can with homosexual or asexual individuals. The pronoun thing also wracks my brain. I'm more accepting of "they" as an object, but "they" as a subject for an individual feels so horrid to me.

      First and foremost, I don't personally know anyone trans. I'm not sure how to change that without being weird.

      Thanks for your support in my learning!

      42 votes
    10. Could we get a ~jokes, ~humor or ~funny group on Tildes?

      I read some funny stuff on here and there are plenty of witty responses around, but a community for humorous content may lighten things up a bit and it can start discussions too… after all:...

      I read some funny stuff on here and there are plenty of witty responses around, but a community for humorous content may lighten things up a bit and it can start discussions too… after all:

      “Laughter without a tinge of philosophy is but a sneeze of humor. Genuine humor is replete with wisdom.” -Mark Twain

      69 votes
    11. Complaints about Tildes and comparisons to other sites

      I was inspired to say this in a different conversation, but having said it, I want to say it more loudly/noticably. A few, not many fellow newcomers to Tildes have made comments comparing it...

      I was inspired to say this in a different conversation, but having said it, I want to say it more loudly/noticably.

      A few, not many fellow newcomers to Tildes have made comments comparing it unfavorably to Lemmy/Kbin or Squabbles. We have options and there will likely be many more. To steal a good quote from a totalitarian dictator, Let a Hundred Flowers Bloom.

      Tildes vs Lemmy/Kbin or Squabbles reminds me of the disagreement between the Ents and the Entwives. Some people prefer gardens. Some people prefer the wilderness. Some like both. I am grateful that Deimos created this nifty site for me to play in.

      http://www.tolkien.cro.net/talesong/ents.html
      https://tildes.net/~tildes.official/wiki/philosophy/index

      72 votes
    12. Let's talk nostalgia

      Greeting everyone, first time actually posting on tildes so try and forgive me for any shortcomings as it's hard to tap out paragraphs on a mobile device. So I wanted to ask you all, when you...

      Greeting everyone, first time actually posting on tildes so try and forgive me for any shortcomings as it's hard to tap out paragraphs on a mobile device.

      So I wanted to ask you all, when you think nostalgia what specific idea or memory comes up for you?

      When i give it some thought my specific memories of nostalgia are of the late 90s early 2000s. I picture a freshly constructed suburban neighborhood where there are no fences built yet, no trees planted or grown, and just grass everywhere - giving it a very liminal feeling. I reflect back on the hours spent outside until after dusk where the amber glow of the street lamps brought a feeling of warmth and coziness on a warm spring evening.

      I also think about the technology, or lack thereof, at the time and how we used it. Beige computers transitioning to black ones as the 2000s crept up, using your big toe to turn them on, playing runescape or Sims Deluxe Edition mindlessly for an unhealthy amount of time etc. I think about the connectivity we had to each other, no smart phones, a wild west internet, and in my case a house phone with a kilometer long cord so that grandma can call europe with calling cards for hours on end while she tangles us all up with the cobweb of wires.

      The list of memories can go on forever, but now I turn it over to you guys/gals.

      30 votes
    13. To those who started using Lemmy recently, what are your impressions so far on its content and discussions?

      I'll admit that I am a new user to Lemmy as a way to replace reddit in my free time, so a lot of my opinions will be relative to it. So far I've found it decent. I won't comment much on the UX or...

      I'll admit that I am a new user to Lemmy as a way to replace reddit in my free time, so a lot of my opinions will be relative to it. So far I've found it decent. I won't comment much on the UX or functionality, since I think it wouldn't be fair to criticize a fairly new platform in that way. I won't try to compare it to Tildes either, since I think they are very different in scope and purpose. I will say that the discussions in tildes are higher quality than both reddit and lemmy on average.

      Overall the experience for me has been hit or miss. Joining a smaller server relevant to my interests was a good move. I joined SDF's instance and the people there are very friendly, and I enjoy the tech-forward posts. Throughout the fediverse as a whole, the discussions felt shorter and not as good as even reddit.

      The posts and discussion on the larger instances to me felt a little immature. Generally I came across a lot of: (1) hyper-contrarians--it reminds me somewhat of linux/oss forums that skew younger. Lots of circlejerking the common themes/in-jokes/ideals of the free-software circles. (2) reddit-bad circlejerking (3) mediocre memes

      I also came across a few very thoughtful discussions related to the fediverse regarding its place in the world, the sort of content that would do well, and the culture of its members. I'm very excited to watch the more niche communities grow. I'll admit that I miss reddit somewhat for music discovery and the smaller genre subs (although not enough to spend my time there again).

      After a few months, I haven't felt compelled to visit reddit nor really Lemmy all that often, since I think both suffer from the same immaturity and hivemind thinking.

      What do you all feel about Lemmy so far? Any good community recommendations? (Especially for music :) )

      41 votes
    14. Travel tips for Havana, Cuba?

      I'll be traveling to Havana, Cuba for 4 or 5 days this Fall and I am asking for any recommended activities or destinations to put on an itinerary. My main interests are (1) anything to do with the...

      I'll be traveling to Havana, Cuba for 4 or 5 days this Fall and I am asking for any recommended activities or destinations to put on an itinerary.

      My main interests are (1) anything to do with the history of the Cuban Revolution and (2) social and technological measures taken to cope with constraints of the trade embargo (and yes, this even includes maintenance of old automobiles); and I'm not particularly interested in Ernest Hemingway, smoking cigars or getting drunk on rum. I will have a 12 and 14 year old kid with me, so I'm also looking for some interesting, age-appropriate activities for them. I will make an effort to take a day trip to the Che Guevara mausoleum in Santa Clara, but the rest of the time will be in or very near Havana. What do you recommend?

      15 votes
    15. Which board games have you all been playing this week (to 2nd July)?

      Hi boardtiddlers, It's that time of the week again already. Another opportunity to discuss what you've been playing this week. Personally I've only managed a single game of Hegemony, this time as...

      Hi boardtiddlers,

      It's that time of the week again already. Another opportunity to discuss what you've been playing this week.

      Personally I've only managed a single game of Hegemony, this time as the middle classes, with my opponents playing working class and state, and with a robot for the capitalists. It was a bit of a crazy game: capitalist automaton managed to open companies across all three rows of the board. I, as middle, had a fair number too, so production was massive and there was little unemployment. We actually ran out of unskilled middle class workers and influence cubes. Working class managed a comfortable win with state and middle coming joint second some twelve or so points behind. I really think we need to work out how to nix the working class, because they've been strong in every game so far.

      So tell us about your sessions this week.

      24 votes
    16. Have you read any good one-shot manga?

      My most recent favorite is "Goodbye, Eri". The story is about a high school boy being asked by his mother to film her final moments before death, which led to him meeting the girl in the title...

      My most recent favorite is "Goodbye, Eri". The story is about a high school boy being asked by his mother to film her final moments before death, which led to him meeting the girl in the title and... things happen (saying more would be spoiler lol).

      What's most striking about this manga is the consistent paneling, making it looks like you're browsing through film strip. It also gives the story a sense of urgency as if the panels are the ticking of a clock. The plot has many twists and turns and 4th wall breaking, reading it feels as if you're watching an indie movie.

      I don't come across oneshots very often and only knew about this one from r/manga. So I'm looking for more!

      13 votes
    17. Recommendations and request for web serials

      From what I have seen discussions here seem mostly about published books but I had figured I will try posting here and see if anyone is interested. They have both positives and negatives compared...

      From what I have seen discussions here seem mostly about published books but I had figured I will try posting here and see if anyone is interested. They have both positives and negatives compared to published/or even just completed fiction but mostly I am interested in them for the higher variance which also means that it is harder to find something good.

      Just listing some I liked over the years, both more and less known:

      • The Gods are bastards by DD Webb (on hiatus, extremely long) - set in a world in a magical industrial revolution where adventuring as career is all but over it follows a class of students in the University. Contains several other viewpoint characters and ever expanding cast.

      • Fall of Doc Future trilogy(and extras) by WD Rieder (on hiatus, very long) - a story about superhumans where the abilities and their effects are treated seriously. Contains some social commentary and several polyamorous relationships in later parts.

      • Time to Orbit: Unknown by Derin Edala (ongoing, long) - a psychological mystery/horror set on a colony ship. A colonist wakes five years early to find that the crew is missing and things are wrong. The mysteries so far constantly escalate but in way that mostly makes sense. The culture of this future is detailed and interesting.

      • Mother of Learning by nobody103 (complete, extremely long) - a time loop progression fantasy following Zorian - a student mage from a minor merchant family.

      • This Used to be About Dungeons by Alexander Wales (complete except epilogues, very/extremely long) - a slice of slice comfy story(at the beginning it slightly escalates later) containing extremely light litrpg elements. Focuses on the group dynamics of a party going to dungeons(sometimes).

      What are some good ones that you would recommend?

      19 votes
    18. Report - The increasing return of legal child labor to the US economy

      Child labor is making a comeback with a vengeance. A striking number of lawmakers are undertaking concerted efforts to weaken or repeal statutes that have long prevented (or at least seriously...

      Child labor is making a comeback with a vengeance. A striking number of lawmakers are undertaking concerted efforts to weaken or repeal statutes that have long prevented (or at least seriously inhibited) the possibility of exploiting children.

      Take a breath and consider this: the number of kids at work in the U.S. increased by 37% between 2015 and 2022. During the last two years, 14 states have either introduced or enacted legislation rolling back regulations that governed the number of hours children can be employed, lowered the restrictions on dangerous work, and legalized subminimum wages for youths.

      Iowa now allows those as young as 14 to work in industrial laundries. At age 16, they can take jobs in roofing, construction, excavation, and demolition and can operate power-driven machinery. Fourteen-year-olds can now even work night shifts and once they hit 15 can join assembly lines. All of this was, of course, prohibited not so long ago.

      Legislators offer fatuous justifications for such incursions into long-settled practice. Working, they tell us, will get kids off their computers or video games or away from the TV. Or it will strip the government of the power to dictate what children can and can’t do, leaving parents in control — a claim already transformed into fantasy by efforts to strip away protective legislation and permit 14-year-old kids to work without formal parental permission.

      In 2014, the Cato Institute, a right-wing think tank, published “A Case Against Child Labor Prohibitions,” arguing that such laws stifled opportunity for poor — and especially Black — children. The Foundation for Government Accountability, a think tank funded by a range of wealthy conservative donors including the DeVos family, has spearheaded efforts to weaken child-labor laws, and Americans for Prosperity, the billionaire Koch brothers’ foundation, has joined in.

      https://tomdispatch.com/caution-children-at-work/#:~:text=The%20Covid%2D19%20pandemic%20of,distinct%20sign%20of%20social%20pathology.

      Here is a Robert Frost poem related to the subject of the article. https://www.poetryfoundation.org/poems/53087/out-out

      I'm GenX and I worked as a teen, but my earliest jobs were babysitting, not industrial labor.

      54 votes
    19. Tildes Game Giveaway Thread: July 2023

      Important: This will be a noisy thread. If you do not wish to see it in your feed, please use the Ignore feature to hide it! Tip: If the large number of comments are cluttering up the topic and...

      Important: This will be a noisy thread. If you do not wish to see it in your feed, please use the Ignore feature to hide it!


      Tip: If the large number of comments are cluttering up the topic and you just want to see the main giveaway posts, click Collapse Replies at the top of the comments.


      Introduction

      Hi all! For everyone new to Tildes (welcome!), we usually run a community game giveaway thread during the major Steam sales. Feel free to make giveaways of your own (using whatever rules you want), or participate in others' giveaways. If you'd like to see some previous examples, check out our most recent Holiday 2022 one or use the tildes game giveaway tag to look through previous posts.

      Before you participate, please make sure you read the rules below.


      Rules

      Gifters

      Post your available games, the platform and method of delivery, rules for your giveaways (e.g. first-come first-serve, random draw, etc.), and any additional info or requirements. Feel free to get creative!

      Giftees

      Request giveaways. Please make sure you follow the gifter's posted guidelines.

      Guidelines

      Anyone can choose to be a gifter, giftee, or both! Giveaway rules are set by individual gifters, but there are handful of guidelines everyone should follow:

      1. No grey market keys! Only give away games from reputable sources. If you're not sure what this means, please ask.
      2. Requests for games should be done in this topic, but if the gift is a key, those should be delivered by PMs only. Please don't post keys publicly in this topic, even obfuscated ones.
      108 votes