sga

@sga@piefed.social

• ⁨Comment⁩ on ⁨YSK that risks to exposure of nuclear radition are often over exaggerated by considering a Linear No Threshold (LNT), which does not match with many studies.⁩ ⁨⁨5⁩ ⁨hours⁩ ago⁩:

  Nuclear plants receive subsidies in the US and most European countries.

  but in most places, the official policy is not to expand their infra. it is either maintainance only, and/or decommision at end of life.

  Subsidies for nuclear plants are usually payed out during construction and decommission of plants, but that’s still subsidies.

  true.

  but for other renewables, the actual material is subsidised. for example, in many places, solar panel installation recieve govt subsidies - 10-50%.

• ⁨Comment⁩ on ⁨YSK that risks to exposure of nuclear radition are often over exaggerated by considering a Linear No Threshold (LNT), which does not match with many studies.⁩ ⁨⁨5⁩ ⁨hours⁩ ago⁩:

  That does not compare in the least to the environmental damage and resource depletion that mining uranium causes.

  please look up energy density of uranium. yes it still needs to be mined, but it is just so energy rich, that for equivalent energy production, it requires roughly 100x lower mining than coal. and just to say, we have a lot more uranium than coal (or any other fossil fuels, combined).

  Unlike solar

  just a side note, but solar panels have a life expectancy of 20-25 years. they also need replacement. and they can not be recycled well.

  Uranium-235 is way scarcer than natural gas or oil

  just the particular 235 isotope is rare, not all uranium. we do enrichment to concentrate the 235. and uranium is not the only element - there is plutonium, thorium. yes thorium reactors are always 5 years away, but that is partly because there is no interest for building more nuclear.

  geological structures that are 100% known to remain stable into the far future.

  this is kinda a solved problem. you essentially just drill 1 or so km deep, on lands which are far from tectonic boundaries. just put your waste, add cement/or rocks. then bury with dirt you mined. A great solution? no, but it works

  In Germany, nuclear fission was successfully phased out for cleaner natural gas, without adverse effects on power grid stability, and with cost savings in the long run

  which resulted in increased reliance over russia’s cheap oil, which after the ukraine conflict started, meant much increased costs. in same period, france, which has a strong nuclear network, did not have an increased demand.

• ⁨Comment⁩ on ⁨YSK that risks to exposure of nuclear radition are often over exaggerated by considering a Linear No Threshold (LNT), which does not match with many studies.⁩ ⁨⁨5⁩ ⁨hours⁩ ago⁩:

  … And now, “What if exposing yourself to radiation is actually good for you?”

  you are using a guilt by association argument. yes the claim challenges what is currently percieved to be a appropriate model for nuclear damage (lnt).

  I have no comments about your 2nd para. i partly agree. presenting your argument as it was done in video feels wrong.

  but, what about the example studies. the town in iran, recieveing roughly 10-40 times radiation of currently considered safe limit.

  Treating radioactive material and radiation produced by a reactor with extreme caution is the best practice regardless

  I have written that very thing in other comments as well. idea is not to drop safety protocols. just change the fear of things by saying - you have not recieved a unsafe dosage.

  here is an example of a very similar thing - consider vaccines which use weaker/incapable strains of virus. or consider the very first vaccine, where they used the “pus” from a cow, to effectively use the cow virus to develop immunity in humans. if you think about it, example kinda matches well - in very low amounts virus is not that deadly. in very large amounts, it caused a pandemic. does that mean that it also follows a linear model (no, afaik, it has more of a network effects thing, so it is sigmoidal).

  I am repeating what i have said in other comments - “do not drop safety limits, spread awreness that it is not that bad”

  Furthermore, your dismissal of other forms of green energy is outdated

  I have completed my bachelors this year. I am by no means a expert, but i think i know enough to say that i am not 20-30 years behind. i am 5-10 behind at best (roughly the time studies take to actually be taught in courses). (yes i have studied energy).

  I am very willing to actually listen things i said which are very out dated, but i would like to hear them, instead of a blanket - my information is outdated.

• ⁨Comment⁩ on ⁨YSK that risks to exposure of nuclear radition are often over exaggerated by considering a Linear No Threshold (LNT), which does not match with many studies.⁩ ⁨⁨1⁩ ⁨day⁩ ago⁩:

  And reducing the cost of nuclear by reducing safety standards actually is unpopular

  i have said the same in other comment, but we are not suggesting raise the limits, but make it to public that tiny amounts of radiation is not bad. so someone who protests building a nuclear power plant because they get an additional 1mSv of radiation (safe limitt currently is aroun 5mSv), it does not mean their risk of getting cancer has increased by 20% or something.

  in case there is a small nuclear spill away, there is no need to a town/state wide lockdown, which completey brings all economic activity of that state to halt. plus the paranoia, and additional cost to handle increased medical vists. i am not trying to normalise spillaways, just that if it is contained, then there is no need to be paranoid.

• ⁨Comment⁩ on ⁨YSK that risks to exposure of nuclear radition are often over exaggerated by considering a Linear No Threshold (LNT), which does not match with many studies.⁩ ⁨⁨1⁩ ⁨day⁩ ago⁩:

  that by itself was not a claim, i knew there would be comparisons with other forms of renewable energy, so i wrote why some of them may or may not work, so it is meant to be read like

  “Are there not better means of renewable energy generation like solar?”

  “Are there not better means of renewable energy generation like wind?”

  where I live (cost seems to be rather location dependant) is creating cheap energy

  mostly becuse in most places, nuclear does not recieve subsidies. most other forms of energy (renewable or not) are subsidised a lot. And most politician would not want to add subsidies because it hurts their popularity. it is always taboo to do anything nuclear. there are reasons why nmri became mri, nuclear fusion research project just goes by fusion research.

• YSK that risks to exposure of nuclear radition are often over exaggerated by considering a Linear No Threshold (LNT), which does not match with many studies.www.youtube.com ↗
  Submitted ⁨⁨2⁩ ⁨days⁩ ago⁩ to ⁨youshouldknow@lemmy.world⁩ | ⁨33⁩ ⁨comments⁩
• ⁨Comment⁩ on ⁨reddit is the 1984 version of a social platform⁩ ⁨⁨2⁩ ⁨days⁩ ago⁩:

  Pardon us, but this post is not meant for this community. YSK is for “facts” and saying something is 1984 may fir “figuratively”, but this does not make it a “objective fact”

• ⁨Comment⁩ on ⁨One Piece anime TV series will release a maximum of 26 episodes per year 2026 onwards⁩ ⁨⁨3⁩ ⁨days⁩ ago⁩:

  Maybe try reading the manga (colored one if you prefer that). read at you comfort and own pace. and no filler.

• ⁨Comment⁩ on ⁨I love authoritarians yum yum⁩ ⁨⁨5⁩ ⁨days⁩ ago⁩:

  not all vaccines. some vaccines (most olden ones) were just differnt similar or weaker or less potent strains, which while still infected you, you get some immunity because your body made “ammunition” against the actual threat.

  then there are vaccines like mrna vaccines, where we find the mrna sequence that enocdes for specific protiens, for example, some surface protien. this protien is a part of virus, but alone the protien is pretty much useless. your body still sees that their is a foreign protein, and builds ammunition against this protien. when the actual protien with the specific virus comes, our body sees the same virus, and uses the same ammunition.

• ⁨Comment⁩ on ⁨Biased source⁩ ⁨⁨5⁩ ⁨days⁩ ago⁩:

  part 7 is steel ball run? i have to start reading jojo someday

• ⁨Comment⁩ on ⁨Forgejo v13.0 is available⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  as others have said, major thing is federation, which is rolling out. other than that, the are mostly complete.

• ⁨Comment⁩ on ⁨Forgejo v13.0 is available⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  not really. it is more of, “i am not really motivated enough right now, can you please motivate me a bit?”

• ⁨Comment⁩ on ⁨THE SIMULATION⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  probably the joke is that in simulations you have a lot of parameters, so even though code is same, not all of them would result in physically realistic situations. or your params were so bad that you ran out of memory or processes killed your system or shit, so even convergence bit works.

• ⁨Comment⁩ on ⁨Alpha decay go brrrrrrr⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  also, uranium's half life is 700 million years, so we expect (207/235)*7.5 (of lead) + 7.5 (uranium) ~ 14.106382978723405 lump.

  also, a lot of the helium produced will remain trapped inside (most heavy metal lumps act as sponges for little gasses). but 700 mil years is also a large amount of time, so much of it would diffuse out. I could checkup diffusion statistics for he d pb-u but i would have to probably do a double integral (as pb-u combination is not fixed, and we can not simply do the error function calculation), so skipping that. but it is safe to say that we will have a lump of ~50% U, 44% pb, and 6% He (by mass), and a significant amount of he will remain in

• ⁨Comment⁩ on ⁨xkcd #3137: Cursed Number⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  everyone who has ever heard of pi, has either died, or will die. just thought of pi gives you a chronic illness which can not be cured

• ⁨Comment⁩ on ⁨xkcd #3137: Cursed Number⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  it also works for all non prime perfect numbers, and also triangle numbers (all triangle numbers greater than 3 or non prime), and also for all numbers above 42, and below 69. quite a neat property sir.

• ⁨Comment⁩ on ⁨We can't all be astronauts.⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  well vectors and matrices are both tensors, so and iirc, while writing by hand, we use lines to denote dimesions (1 and 2 respectively), and we use bold while typing

• ⁨Comment⁩ on ⁨We can't all be astronauts.⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  well i have learnt something, thanks. i usually just unitalicise names (so here, that would be moon and me, but not N, kg, m). I have seen units italicised a lot (professor notes, even papers), so i assumed it was accepted. i have seen normal ones too, and bold also (that is usually for vector quantities i think).

• ⁨Comment⁩ on ⁨Little Pea Shooters⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  if i remeber correctly, it just slings most of fast moving things around (roughly equally in all direction), and only slow moving things actually hit it.

  slung out of the system.

  that seems a bit too strong for jupiter, that seems more like suns behaviour

  Jupiter's pull is so great, compared to earth, that the ones that do get past or then pulled more towards the sun.

  this seems correct.

  but i have not actually done any courses on celestial mechanics, and mostly basing on yt videos that i watch, so you maybe are correct on this one.

• ⁨Comment⁩ on ⁨Little Pea Shooters⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  but jupiter also slings a lot towards earth too

• ⁨Comment⁩ on ⁨We can't all be astronauts.⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  they kinda are not. it is most likely typeset in latex, where in equation mode all letters by default get italicised. and it is kinda accpeted as appropriate typesetting.