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    1. Does anyone have recommendations on an office or gaming chair for short people? Preferably something that doesn’t absolutely break the bank?

      My girlfriend and I have been in the market for new computer chairs at home, as we have been getting increasingly uncomfortable in our existing chairs. We are both shorter people (both under 5’5”)...

      My girlfriend and I have been in the market for new computer chairs at home, as we have been getting increasingly uncomfortable in our existing chairs. We are both shorter people (both under 5’5”) and the problem we’ve been coming across is in most chairs (even the ones I’ve found for “short” people) tend to have seat depths of 16+ inches. What ends up happening is the edge of the seat ends up pushing into our calves leading to bad posture because we can’t sit up fully to the back of the chair unless our lower back gets leaned forward a bit due to the size of the seat depth. This leads to bad posture and back pain.

      So I’m curious fellow short people of Tildes, does anyone have any recommendations for a more comfortable and ergonomic chair for short people?

      26 votes
    2. Gray whales in Baja California frequently interact with humans in a remarkable shift. They were known to fight back when harpooned, even damaging boats, earning the nickname "devil fish."

      https://www.businessinsider.com/gray-whales-or-devil-fish-friendly-to-humans-baffling-scientists-2023-7#:~:text=Gray%20whales%20were%20nicknamed%20'devil,humans%20pet%20them%2C%20baffling%20scienti...

      https://www.businessinsider.com/gray-whales-or-devil-fish-friendly-to-humans-baffling-scientists-2023-7#:~:text=Gray%20whales%20were%20nicknamed%20'devil,humans%20pet%20them%2C%20baffling%20scientists.&text=Gray%20whales%20were%20hunted%20to,the%2018th%20and%2019th%20centuries.

      Gray whales put up such a fight against whalers and their boats they earned the nickname "devil fish." Today, in the same places where the whales were hunted to the brink of extinction just decades ago, they swim right up to boats, enchanting and even befriending the people in them.

      One of those remarkable encounters was captured in March in the Ojo de Liebre, a lagoon in Mexico's Baja Peninsula. The video showed a gray whale right beside a boat, allowing the captain to pick whale lice off its head.

      Although some thought the whale was purposefully going to the captain for help with the whale lice — which are actually crustaceans, not insects — experts told Insider that's probably not the case.

      Still, the fact that the gray whales of the Baja lagoons interact with boats and humans at all baffles researchers.

      "This is what's so strange. They were hunted almost to extinction," Andrew Trites, director of the Marine Mammal Research Unit at the University of British Columbia, told Insider. "You would think being near a person in a boat is the last thing the few remaining gray whales would've ever done and they would've had this disposition to avoid them at all costs, the few that survived."

      (article continues)

      10 votes
    3. Duolingo alternatives for learning Ukrainian

      Hello! Привіт! Pryvit! I started learning Ukrainian on Duolingo in February 2022 following Russia's attacks. It was my first time attempting to learn a language for 10+ years and it just clicked....

      Hello! Привіт! Pryvit!

      I started learning Ukrainian on Duolingo in February 2022 following Russia's attacks. It was my first time attempting to learn a language for 10+ years and it just clicked. I grew to love the language, became entranced with the culture, and had desires to keep learning. Prior to Duolingo's redesign, I had a year+ streak and made it fairly far in the course.

      The redesign has absolutely killed that passion. Maybe it's just the Ukrainian course, but it felt like I was going in circles and not really progressing as I once had. I've shelved my learning for a few months, but I really desire an alternative to Duolingo. Unfortunately, there's not many options that offer Ukrainian and I want to ensure I am learning the language as intended. I've read into how Russian influences have attempted to modify the language and I desire to learn the form that Ukrainian's would use.

      I'm not quite at a level to learn from books or more static resources, and would prefer the interactivity of an app to help get me to that comfort level again. I've tried Pimsleur and wasn't as much of a fan of their format that reminded me of language tapes. One of the things I enjoyed with Duolingo was the verbal parts of it that helped with my pronunciation, and Pimsleur didn't appear to offer that.

      Any recommendations would be greatly appreciated! I have seen old posts referring to a SubStack and other resources, but at this time I need a refresher before I feel comfortable diving into those. I would love to incorporate learning a little bit of Ukrainian everyday again! Слава Україні!

      19 votes
    4. Things to consider when viewing a house, not in regards to inspection concerns?

      My spouse and I were recently pre approved for a home loan; this evening, we will be going to look at a house for the first time. This will be our first house, and unless truly extenuating...

      My spouse and I were recently pre approved for a home loan; this evening, we will be going to look at a house for the first time. This will be our first house, and unless truly extenuating circumstances arise, we will not be looking to move or sell anytime soon.

      There are plenty of existing threads and articles covering things to look for in terms of the state of the house itself, such as foundation cracks, new paint covering mold, water damage, etc; what I am looking for is more a question of things to consider potentially liking or disliking about a home, regardless of its state of repair, that we might not think of until it's too late.

      For example, some things I've come across that are important and can't be changed about a house, but I wouldn't have thought to consider if I hadn't seen someone else mention them, include:

      • whether we get good cell service when not using wi-fi
      • whether the hallway is wide enough to move large furniture through
      • what direction the house faces, and subsequently when/where light comes in

      What other things might be easy to overlook about a property, but should be taken into account?

      35 votes
    5. Bungie wins landmark lawsuit against player who harassed Destiny staff

      https://www.polygon.com/23793493/bungie-destiny-2-harassment-lawsuit Win empowers employers to protect employees from online harm Bungie has won almost $500,000 in damages from a Destiny 2 player...

      https://www.polygon.com/23793493/bungie-destiny-2-harassment-lawsuit

      Win empowers employers to protect employees from online harm

      Bungie has won almost $500,000 in damages from a Destiny 2 player who harassed one of its community managers and his wife with abusive, racist, and distressing calls and messages, and sent an unsolicited pizza order to their home in a manner designed to intimidate and frighten the couple.

      According to members of Bungie’s legal team, the judgment from a Washington state court sets important precedents that will empower employers to go after anyone who harasses their employees online, and strengthen the enforcement of laws against online trolling and harassment. “This one is special,” Bungie’s attorney Dylan Schmeyer tweeted.

      As laid out in the court’s judgment, the defendant, Jesse James Comer, was “incensed” when the community manager — whom both Bungie and the court declined to name, to protect them from further harassment — spotlighted some fan art by a Black community member. Using anonymous phone numbers, Comer left a string of “hideous, bigoted” voicemails on the community manager’s personal phone, some asking that Bungie create options in Destiny 2 “in which only persons of color would be killed,” before proceeding to threaten the community manager’s wife with more racist voicemails and texts. Then he ordered a pizza to be delivered to their home, leaving instructions for the driver to knock at least five times, loudly, to make the intrusion as frightening as possible.

      The court ruled that Comer was liable to pay over $489,000 in damages, fees, and expenses it had accrued in protecting and supporting its employees, investigating Comer, and prosecuting the case against him.

      As laid out in a Twitter thread by Kathryn Tewson, a crusading paralegal who worked on the case, the judgment is significant because it recognizes that patterns of harassment escalate from online trolling to real-world violence; establishes that harassment of an employee for doing their job damages the employer as well, which can then use its resources to go after the culprit; and recognized a new tort — a legal term for a form of injury or harm for which courts can impose liability — around cyber and telephone harassment.

      (article continues)

      38 votes
    6. What is your experience with switching medication and brain zaps?

      I've just started switching my medication and it's been pretty bad for me. Brain zaps are very frequent and I'm crying a lot. I'm struggling. I've been trying to find out what other people's...

      I've just started switching my medication and it's been pretty bad for me. Brain zaps are very frequent and I'm crying a lot. I'm struggling.

      I've been trying to find out what other people's experience has been like when they switch meds. What is normal and what isn't. People who relate to brain zaps and how they deal with it. Are brain zaps even considered a real thing?

      What has your experience been like?

      26 votes
    7. US states scrutinize the amount of charity spending from nonprofit hospitals in light of high salaries and large tax breaks

      https://kffhealthnews.org/news/article/nonprofit-hospitals-tax-breaks-community-benefit/ POTTSTOWN, Pa. — The public school system here had to scramble in 2018 when the local hospital, newly...

      https://kffhealthnews.org/news/article/nonprofit-hospitals-tax-breaks-community-benefit/

      POTTSTOWN, Pa. — The public school system here had to scramble in 2018 when the local hospital, newly purchased, was converted to a tax-exempt nonprofit entity.

      The takeover by Tower Health meant the 219-bed Pottstown Hospital no longer had to pay federal and state taxes. It also no longer had to pay local property taxes, taking away more than $900,000 a year from the already underfunded Pottstown School District, school officials said.

      The district, about an hour’s drive from Philadelphia, had no choice but to trim expenses. It cut teacher aide positions and eliminated middle school foreign language classes.

      “We have less curriculum, less coaches, less transportation,” said Superintendent Stephen Rodriguez.

      The school system appealed Pottstown Hospital’s new nonprofit status, and earlier this year a state court struck down the facility’s property tax break. It cited the “eye-popping” compensation for multiple Tower Health executives as contrary to how Pennsylvania law defines a charity.

      The court decision, which Tower Health is appealing, stunned the nonprofit hospital industry, which includes roughly 3,000 nongovernment tax-exempt hospitals nationwide.

      “The ruling sent a warning shot to all nonprofit hospitals, highlighting that their state and local tax exemptions, which are often greater than their federal income tax exemptions, can be challenged by state and local courts,” said Ge Bai, a health policy expert at Johns Hopkins University.

      The Pottstown case reflects the growing scrutiny of how much the nation’s nonprofit hospitals spend — and on what — to justify billions in state and federal tax breaks. In exchange for these savings, hospitals are supposed to provide community benefits, like care for those who can’t afford it and free health screenings.

      More than a dozen states have considered or passed legislation to better define charity care, to increase transparency about the benefits hospitals provide, or, in some cases, to set minimum financial thresholds for charitable help to their communities.

      The growing interest in how tax-exempt hospitals operate — from lawmakers, the public, and the media — has coincided with a stubborn increase in consumers’ medical debt. KFF Health News reported last year that more than 100 million Americans are saddled with medical bills they can’t pay, and has documented aggressive bill-collection practices by hospitals, many of them nonprofits.

      (article continues)

      15 votes
    8. New users: Ask your questions about Tildes here! (v2)

      At over 600 comments and over a month old, v1 of the questions thread is due for retirement. Here’s a new, fresh one for all the users we are continuing to get. We have a lot of new users joining...

      At over 600 comments and over a month old, v1 of the questions thread is due for retirement. Here’s a new, fresh one for all the users we are continuing to get.


      We have a lot of new users joining the site. Welcome to Tildes!

      This thread is for you to ask any question you have about the site, from “what is the moderation philosophy?”to “what does that blue line next to some comments mean?” to “what is the general vibe like here?” Tildes has a lot of documentation, history, and embedded social norms that can be daunting or opaque at first glance, so here’s your opportunity to get help with anything you need.

      Questions about anything and everything are fair game. Follow-up questions are encouraged! No question is too simple.

      Also, a quick note: the only person who can speak in any official capacity on Tildes is our admin @Deimos. Everyone answering who is NOT him is just a helpful community member!

      It is perfectly okay to ask any question — even if you think it’s been asked before, or even if you didn’t search for an answer beforehand. Just ask away, and someone will answer you!

      96 votes
    9. Fitness Weekly Discussion

      What have you been doing lately for your own fitness? Try out any new programs or exercises? Have any questions for others about your training? Want to vent about poor behavior in the gym? Started...

      What have you been doing lately for your own fitness? Try out any new programs or exercises? Have any questions for others about your training? Want to vent about poor behavior in the gym? Started a new diet or have a new recipe you want to share? Anything else health and wellness related?

      11 votes
    10. Weekly megathread for news/updates/discussion of Russian invasion of Ukraine - July 13

      This thread is posted weekly on Thursday - please try to post relevant content in here, such as news, updates, opinion articles, etc. Especially significant updates may warrant a separate topic,...

      This thread is posted weekly on Thursday - please try to post relevant content in here, such as news, updates, opinion articles, etc. Especially significant updates may warrant a separate topic, but most should be posted here.

      If you'd like to help support Ukraine, please visit the official site at https://help.gov.ua/ - an official portal for those who want to provide humanitarian or financial assistance to people of Ukraine, businesses or the government at the times of resistance against the Russian aggression.

      29 votes
    11. Jujutsu Kaisen - Season 2 | Discussion thread - all episodes

      Alternative title(s) Sorcery Fight, JJK Genres Action, Drama, Supernatural No. Episodes 23 Information MyAnimeList AniList AniDB Synopsis The second season of Jujutsu Kaisen. The past comes to...

      Alternative title(s) Sorcery Fight, JJK
      Genres Action, Drama, Supernatural
      No. Episodes 23
      Information MyAnimeList AniList AniDB

      Synopsis

      The second season of Jujutsu Kaisen.

      The past comes to light when second-year students Satoru Gojou and Suguru Getou are tasked with escorting young Riko Amanai to Master Tengen. But when a non-sorcerer user tries to kill them, their mission to protect the Star Plasma Vessel threatens to turn them into bitter enemies and cement their destinies—one as the world’s strongest sorcerer, and the other its most twisted curse user!

      (from AniList)

      Discussion rules

      BEWARE OF SPOILERS. Since all episode discussions are within a single thread, here are some rules to ensure revisits are safe from spoilers.

      1. How this thread is organized
      • Each top-level comment is a mini-thread for each episode discussion. A new top-level comment will be added whenever another episode is released.
      • All discussions must be posted as replies within the appropriate mini-threads only. No discussions should be posted as top-level comments.
      • Anything without dedicated mini-threads can be posted under "General chat".
      2. How to navigate and avoid spoilers
      • Use the "Collapse replies" button to find the appropriate episode discussions more easily, and make potential spoilers less visible.
      • You can also use the links at the bottom to jump directly to each episode discussion.
      3. When and how to hide spoilers
      • Within each mini-thread, discussions about the current and previous episodes are freely allowed.
      • But, details about subsequent episodes and source materials are spoilers and must be hidden.
      • To hide spoilers, you can follow the "Expandable sections" part of the formatting guide.
      Tips on using "Expandable" format for spoilers

      Currently there's a flaw where if the comment is collapsed (by using "Collapse replies" or other ways), the hidden parts can still be seen in the small blurbs.

      The workaround is to further enclose the spoilers in quote block. See here for an example comment.

      Direct links to each mini-thread

      Episode discussion (main)

      | Ep1 | Ep2 | Ep3 | Ep4 | Ep5 )

      General discussion (extra)
      | General chat || Season 1, Source material,


      P/S: See here for more ongoing show discussion threads this season.

      23 votes
    12. Have I by mistake "developed" a new chili pepper variety?

      A year ago I bought a bunch of chili seeds that I planted and then kind of left to its own devices on my balcony together with 3 other types of chili pepper. I watered the plants but I didn't give...

      A year ago I bought a bunch of chili seeds that I planted and then kind of left to its own devices on my balcony together with 3 other types of chili pepper. I watered the plants but I didn't give them any other love.

      Despite my negligence the plants thrived and some of the chili peppers developed a very particular appearance.
      Perhaps 1 out of 10 fully grown peppers kind of resembled a flower with petals around its base. They aren't suppose to look like that.

      https://i.imgur.com/Km2GFu3.jpg

      I saved the seeds from the largest and most distinct "flower chilis" and planted them to see if the odd appearance of the peppers would come back in generation 2...and so far 5 out of 5 developed fruits have the same flower appearance. Some only have 2-3 "petals" around the base of the fruit but some have 5-6.

      My four gen 2 plants have perhaps 60 more peppers in development (out of 100 flowers) and this year the gen 1 plant only have 2 out of 30 peppers that have the flower appearance.

      I have only found one pic on the internets of the same base variety that have a hint of a "petal" but none that look like mine.

      I know that new chili varieties aren't considered to be stable until gen 6-7 so I have more planting to do :) but which steps do I need to take to solidify the variety except replanting seeds and growing new generations?

      59 votes
    13. Loona "smart" robot

      I recently got a Loona, one of those "smart" robot pets. My kid isn't great with real pets yet so we're trying to ease into things, sort of like exposure therapy. But we're having major problems...

      I recently got a Loona, one of those "smart" robot pets. My kid isn't great with real pets yet so we're trying to ease into things, sort of like exposure therapy. But we're having major problems with it. This post is part first impressions and part asking if anyone else has experienced this and maybe has figured out solutions.

      Now, my kid loves it, a lot. So it's not a complete flop, thankfully. But wow is it ever the opposite of smart. Kind of like how Google, Alexa, etc have "command phrases" to let them know you're wanting to talk to them, Loona has "hello Loona". But it only triggers listening mode like 20% of the time. Doesn't seem to matter if you talk slowly and enunciate or if you talk normal, it's just really bad at listening.

      Even once you have it listening to you, it only recognizes your commands maybe half the time. The booklet it came with seems to say it sends audio to Amazon for voice to command translation, so I'm assuming it's bad at listening to commands because:

      1. The microphone is mediocre and isn't picking up all the words correctly.
      2. Amazon's public voice to command service isn't great for general use.
      3. A little of both.

      On the one hand, I get if you're looking to leverage existing technology and not reinvent the wheel. On the other hand, if it can't even detect "hello loona" locally, then everything it hears would go to Amazon. That terrifies me, given their privacy track record. It's also just plain frustrating to try getting it to play a game or go to sleep when it's constantly ignoring you.

      Beyond that, it almost feels like the camera is for gimmicks rather than a functional component. It's constantly running into things like walls, chair legs, human legs... It's always running into you when you try to interact with it and it frequently moves violently; fast and without regard for its surroundings. I assume it makes no attempt to map out even just its immediate surroundings because of how it always runs into the same stuff over and over again.

      And one feature I was looking forward to is that the robot is supposed to be capable of getting itself back to its charging dock, and yet not once has it ever attempted to do so. Not when it's low battery and not when we tell it to. But it also, for no great reason, assumes that it should just wake up when it finishes charging, so if you start charging it in the evening and forget to manually turn it off, the thing starts yelling and ramming into stuff in the middle of the night; it's insanity.

      Anyway, I would not recommend it from personal experience. But if you have one or know someone that does, and you aren't having these issues, please share your wisdom with me.

      17 votes
    14. How can I make a television "time machine"?

      The idea is simple: on any given day, I wanna know what TV show was on with new episodes 10, 20, or any number of years ago. To make it simple, let's restrict it to US television. The reasoning...

      The idea is simple: on any given day, I wanna know what TV show was on with new episodes 10, 20, or any number of years ago. To make it simple, let's restrict it to US television.

      The reasoning behind it is that shows were made with that expectation (they are not "binge friendly"), and it was wonderful to have a different show every day of the week. It was magical to be able to randomly catch Monk, E.R., The X-Files, The Pretender, Psych, Star Trek TOS, or Early Edition on TV. Hell, even Game of Thrones made a lot more sense when I had to wait a week before watching!

      So yeah, this is 100% about nostalgia. At least one day I week, I'm gonna watch whatever was on TV that exact day 10 to 30 years ago.

      I'm gonna choose a decade and start from there.

      But how could I do it, from a mechanical standpoint? I mean, where can I easily find the information of all the episodes that premiered on US TV exactly 10, 20, 30 years ago to the day?

      Additionally, any tips on finding obscure 80s and 90s TV shows?

      Thanks!

      Edit: what I want it is really nothing complicated, I just wanna know what was on any day of the week for the past 30 years. No automation required!

      12 votes
    15. Brag post: Health going in the right direction, and simple life hacks

      About a year ago I was approaching 200 lbs. I work from home since pre-pandemic. I used to bike to an office but since then, I’ve moved somewhere less biking friendly. My strategy to tackle weight...

      About a year ago I was approaching 200 lbs. I work from home since pre-pandemic. I used to bike to an office but since then, I’ve moved somewhere less biking friendly. My strategy to tackle weight was intermittent fasting. And it was generally working for ~10 lbs and I stopped weighing myself for a year. And shirts were not fitting me, and then I learned the weight had come all back and more.
      I knew enough that the fasting was going to do nothing if I was not telling my body to really use anything it stored up. Serendipitously I read about someone with a recumbent bike under their standing desk, and gaming, they’d wrack up the miles. I realized I needed that setup. I’m someone who just hates to go out of my way for working out.

      Found one that was literally a desk chair with a bike under it and ordered it. I went from ultra sedentary to light exercise for ~4 hours a day. I’ve had it for about 2 weeks, and this thing is great. I’m listening to my body and not trying to do it too hard (for those who are concerned). Without every really trying to sprint I’ve been doing 40 miles a week-day. On the 4th of July I tried to see how far I could go biking all day. When I started I could not go anymore at 80 miles. Last weekend I easily knocked out 70 miles. The big thing is breaks. I’m not on a real bike, so there is no problem in taking a 5 minute break to knockout dishes or something. I don’t know if I trust the machine telling me I’m burning ~1,000 cals on my 40 miles, but I know what I am doing is healthy and I’m curious how my body will feel in 6 months or a year.

      How do my legs feel? Oddly enough, during the day or after the work out, they’re beat. They seem to feel better by the time I’m ready to ride in the evening so no rest days yet. I’m shocked how much the leg fatigue really goes away once I start riding and focus on whatever is on my PC. Most of the discomfort is really from my bum. It has gone away generally though.
      An odd risk I had to solve for myself was that upon pushing away from my desk while on my bike, I nearly topped my standing desk over. This was solved by well-placed PVC pipes and padding locked between the desk and the wall.

      What bike do I recommend?
      The budget version: https://www.amazon.com/dp/B004O6TXVS/
      The one I have: https://www.amazon.com/dp/B0C8MVYLLT (but from their original website)
      A cushion that the I book marked when I was doing research: https://www.amazon.com/dp/B01EBDV9BU

      When I look up recumbent biking exercises, it’s kind of funny. It’s often recommended for the elderly because it’s potentially such a low intense workout. It’s great in a long duration. I would actually feel guilty spending this much time at the gym, but this method rocks. I have not worked out for this long since playing a Highschool sport. I won’t ever be shaped like a teenager again, but I can work towards it.

      19 votes
    16. Nuclear fusion discussion

      I'm a big fan of nuclear fusion as a concept and hope to shift toward doing active research in the field at some point. I'd like to open this discussion to talk about topics regarding nuclear...

      I'm a big fan of nuclear fusion as a concept and hope to shift toward doing active research in the field at some point.

      I'd like to open this discussion to talk about topics regarding nuclear fusion as a future energy source. To start, I'll lost a couple of ongoing fusion efforts I'm familiar with.

      ITER:Of course the biggest fusion project is ITER, the massive multinational collaboration which is building a massive tokamak reactor in France. Unfortunately ITER will never produce power for average people, as it's purely a test reactor with no plans to be connected to the grid. The following effort to build a functional grid connected reactor, DEMO, isn't set to be built until at least 2050. This has resulted in a considerable number of private ventures trying iut experimental alternative approaches.

      HELION:At the time of writing this, there's quite a bit of buzz surrounding Helion energy, both because of the ambitious timeline theyve recently proposed as well as the investment of Sam Altman of OpenAI fame. Helion uses an FRC topology, which I personally think is a really cool idea. Basically it's a tokamak without the physical shell around it, and is kept sustained by the internal plasma physics. Helion also has another interesting quirk, they are not pursuing the typical DT fuel strategy, but are instead planning to use DD fusion to breed He3 and use DHe3 fusion as the primary energy source. I think this is a good idea because DHe3 fusion is "aneutronic", whereas DT fusion produces high energy neutrons that are somewhat of an unsolved problem to deal with. I wonder though, how they intend to deal with the inevitable tritium pollution that DD fusion creates, and how they will separate that out before Iit creates neutrons anyway.

      TRIALPHA:In addition, another major company TriAlpha Energy, also pursued FRCs, hoping to use an alternative proton-boron11 mix to achieve aneutronic operation. I think they've sort of pivoted toward being more a neutron source than working toward breakeven.

      HB11: A recent proposed approach is HB11, which is also going for proton-boron fusion. Now with Tri Alpha this seemed really dubious, because hydrogen boron has a much lower cross section for fusion than other options, even the DHe3 that Helion is doing. In addition, boron has way more electrons than hydrogen, so a proton boron plasma has more electrons with causes more bremsstrahlung loss. HB11, however, thinks they can overcome this through high energy laser acceleration. They want to use a high power laser to shoot a fuel pellet into a target. This supposedly will work much better than heating the stuff, because the laser will impart a specific impulse and thus the thermal spectrum of the impact will have a much higher Q factor centered around the cross sectional peak. I'm not really convinced on this, just because I feel like that thermal spectrum would only last for the first few atomic layers of impact before it doesn't really matter amymore.

      CFS: The next option I would consider to be one if the most popular fusion startups is Commonwealth Fusion Systems. They have what I'd consider the most conservative approach, they are attempting to build a Tokamak design like ITER, but hope to reduce the size considerably by taking advantage of advances in superconductor technology with REBCO tapes.

      W7X:The next reactor type I'll mention was in the news a lot a few years back, the Wendelstein-7X in Germany. This is a stellarator design, the crazy twisted car wreck of a thing you may have seen before. The stellarator is shaped that way so that it doesn't require an induced current like the tokamak to have magnetic helicity, because the shape does that automatically.

      ZAP:Another well liked dark horse is Zap Energy. They're not as flashy as the other reactors but seem to be working off solid physics that have been proven out over many years. They're trying to do sheared flow z-pinches, which is basically creating a lightning bolt that's perfectly straightened out and super dense.

      DPF:One more somewhat obscure option is Eric Lerner's Dense Plasma Focus approach. I'm a little puzzled by this option because it seems to be the exact opposite of Zap, where they make an incredibly twisty lightning bolt instead of a straight one.

      FUSOR/POLYWELL:There are a couple reactor types that get mentioned often but are more or less obsolete are the Fusor and the Polywell. A Fusor is a neat device that can be built to fit on a desktop and still produce actual fusion reactions, but has a fundamental design flaw of a physical electrode inside the plasma that introduces too much conductive heat loss. The Polywell is a more advanced concept thay tries to create a "virtual" cathode with orthogonal magnetic mirrors, but I think after many years of experimentation researchers were unable to validate the formation of such a virtual cathode.

      NIF:One option that is sort of tangential is the NIF, which you might have heard technically produced more energy than it produced. I dont think its necessarily going to go anywhere, mostly because it's more a weapons program than an energy program, but I think the chirped pulse amplification technology they use is really cool.

      GENERAL-FUSION:And finally I'd be remiss if I didn't mention the very highly funded and publicized General Fusion. I definitely give them points for pure childlike wonder. The original pitch was they were going to take a giant swirling tornado of molten metal, fire a ball of plasma into the eye of the storm, then smash the whole thing from all sides with a hundred giant hammers. To be honest is such a wild concept that I don't really know if it really makes any sense or if it's a fever dream. It's undergone a few revisions after finding out that certain parts of its concept just weren't going to work. This doesn't inspire a ton of confidence, but also shows flexibility in their thinking.

      There's definitely lots of other companies with other variations, but this gives a general idea of the huge range of ideas and approaches being pursued. I think it's a really cool field to explore and I'd love to hear all your thoughts about it.

      48 votes
    17. Parenting anxieties: Contexualising WW2 for a nine year old

      OK, so I have a very nerdy, mildly ADHD 9 year old boy who has been fascinated with WW2 for ages. All this started with him getting obsessed with the Titanic when he was about 4, which then led us...

      OK, so I have a very nerdy, mildly ADHD 9 year old boy who has been fascinated with WW2 for ages. All this started with him getting obsessed with the Titanic when he was about 4, which then led us to look at some old Nat Geo magazines about Robert Ballard's oceanographic expeditions which then led him to get fascinated with the German battleship Bismarck and Operation Rheinubung. The drama of big gun battleships got him in the feels and in the five years since then he has been deeply into naval stuff, particularly WW2 naval combat ever since. Musically this got him into Sabaton and their WW1/2 related metal songs. He actually sat down and watched the 1960s black and white Sink the Bismarck on YouTube, along with stuff like Midway (the version from a few years back). He thinks aircraft carriers are cool and ate up both Top Gun movies and is now getting into submarines (loved The Hunt for Red October) but wistfully repeatedly tries to reason me into agreeing that navies should have stuck with big gun battleships.

      However, this has manifested as a deep fascination with Germany in general- he knows the basics about fascism, the Holocaust and Wehrmacht atrocities (but still can't quite get why it happened) but to a small boy I understand the OMG WUNDERWAFFEN attraction. Coincidentally his best friend is an ethnically German girl which further gets him a bit confused because he can't quite grok the difference between "my friend is German, I think German engineering is cool" and "but we still condemn fascism".
      To be clear- he understands why racism and prejudice are wrong. As an ethnic minority in our country I suspect he'll come into contact with racial prejudice sooner rather than later so hopefully life experience will lead him away from the alt-right bits of history nerdery.

      We're in Singapore, which means there's very little consciousness of the Holocaust in public education- our history syllabus (fairly enough) deals with the Pacific War and its effects on postwar decolonisation when it touches on WW2 whereas the European theatre is just vague background.

      I don't know where I'm going with this, really- I like that my son is a history buff, and I don't want to cut him off from intellectual interests he's passionate about but on the other hand I'm wondering how I can let him enjoy this while contextualising it from a progressive perspective.

      41 votes
    18. What's something you want to understand the appeal of?

      Is there something you just don't get? Something that you have no idea why people like it? Something that baffles you personally, but clearly not everyone shares your neutral-to-negative feelings?...

      Is there something you just don't get? Something that you have no idea why people like it? Something that baffles you personally, but clearly not everyone shares your neutral-to-negative feelings? Now's your chance to ask.

      Here's the way it works:

      1. Someone names something they want to understand the appeal of.
      2. People respond, doing their best to convey why they (or others) like it in a way that's understandable to a skeptical audience.

      This can be anything: musical genres, food combinations, personal habits, life experiences, etc.

      Importantly, this is NOT meant to be a thread about grousing about what other people like. Think of it less as "telling people to get off your lawn" and more "why do those people like to spend time on my lawn in the first place?"

      109 votes
    19. Help with a home theater system issue

      Long story short my roommate has a surround system she got at Goodwill and I set it up for her but the internal amps are not functioning properly. It's only using the front two satellite speakers...

      Long story short my roommate has a surround system she got at Goodwill and I set it up for her but the internal amps are not functioning properly. It's only using the front two satellite speakers and sub which is independently powered. So it's 2.1 for now.

      The front two speakers barely put out much sound even cranked to max volume. The sub is fine as again it's independently powered.

      I've ruled out all settings, as there is a 2.1 output mode, and the radio is just as low so it's not an input issue. I have it hooked to her PC's output. I also have proper gauge speaker wire so that's not the problem either. I did hook up the center speaker to one of the front outputs too. Same deal.

      So can an inline amp help at this point? Is there anything else I can try or rule out?

      Also if this is not appropriate to post here in Tech I apologize in advance.

      5 votes