There have been multiple accounts created with the sole purpose of posting advertisement posts or replies containing unsolicited advertising.

Accounts which solely post advertisements, or persistently post them may be terminated.

askscience

This magazine is from a federated server and may be incomplete. Browse more on the original instance.

Raffster , in How do different body parts (specifically shape) emerge from our genes?

deleted_by_author

  • Loading...
  • remotelove OP ,

    I found this video today that seems similar to what you are talking about: youtu.be/M_vRgMBL0yA?si=5OsRiVnKt9A2Q4_u

    Ok, I knew those genes were called something! Thinking about homeotic gene mutations has sufficiently jumbled my brain again though. (Hopefully, if I can code a simple analog to represent them, natural evolution can sort out any mess homeosis creates.)

    lemming ,

    I would just add that it’s a gradient of transcription factor(s), proteins that regulate production of other proteins. Some of the regulated proteins are other thranscription factors that create finer gradients, like repeated stripes of gradients. along the initial, single gradient. This can be repeated on multiple levels so that pretty much every point of the body has unique combination of transcription factors. This combination triggers all the other proteins, including structural that create the form of the body. and of course, all this doesn’t just happen in 3D, but also changes with time. It’s complicated.

    For illustration and possible direction for some particular interesting cases wrapped in a very entertaining package, I recommend this: www.youtube.com/watch?v=ydqReeTV_vk

    catloaf , in How do you clean?

    You use a solvent that is stronger than what you want to remove, but not so strong that it also removes the thing you’re trying to clean.

    tpihkal ,

    That’s the answer. Figure out what you need and wear PPE as necessary.

    Tar_alcaran ,

    Aqua regia and safety squint!

    Mo5560 ,

    Ngl I have mixed aqua regia to clean out my pestle and mortar in a lab course once. Shit went from uncleanable to clean really quick. H_2O_2 + conc. HCl is sufficient for most extreme cleaning needs tho.

    Alteon , in How do you clean?

    Depends on what I’m cleaning for. Countertop? Just a basic surfectant and done. Bathroom? Diluted Bleach. Aerospace equipment? Assuming CRES, I’m first running the item through an ultrasonic cleaner with a mild detergent, then ultrasonically cleaning again with DI water, then passivating per AMS2700, Method 2 in a FOD protected area or low-grade clean room.

    grue , (edited ) in How do you clean?

    I’ve never used one myself, but autoclaves are a thing nobody’s mentioned yet.

    Edit: it occurs to me that I have used one before, if sterilizing food with a pressure canner counts.

    Tar_alcaran , in How do you clean?

    To quote an old teacher: “there hasn’t been a counter so dirty a little benzene can’t clean it!”

    janus2 , in How do you clean?
    @janus2@lemmy.zip avatar

    I had access to a laminar flow hood at work, so I cleaned the dust off my phone and installed a new screen protector inside it. That was the best screen protector installation I ever did. Being able to ensure you’ve removed 100% of particles from the screen really makes a difference haha

    STOMPYI , in How much longer will the age of Science last?

    The connection of mind amd matter. We will join it with other frameworks as a complete system of intelligence and human wisdom. Understanding true nature and its inherit empty nature is but a step to letting go of desire and freedom from suffering.

    It joins spirituality and helps make it a lifestyle. Activating the PNS rest and digest is at the heart of all spirituality I see, from chanting to singing to silent prayer to whirling dervishes to yoga to the 112 ways of Shiva to Janisism to Gnosticism to teachings of love to Chakras to Mongolian throat singing and even shoalin.

    Everything we do can be processed on the ANS fight or flight or PNS rest and digest. History has shown many people attaining great wisdom by pure reflection inward working a full balanced human system.

    BodilessGaze , in How much longer will the age of Science last?

    I remember reading an article (can’t find it right now) from a PHD dropout who was doing research in string theory. One of reasons he dropped out is his frustration at how abstract and disconnected from reality his work was. His advisor (and his colleagues) didn’t have that problem, because to him, the math behind string theory was an ends in itself. There’s beauty in math, regardless of whether it has any practical application. If string theory turns out to be an accurate model of reality, then that would be a nice bonus, but that’s not why his advisor studied it.

    So to answer your question, if we somehow reach the point where everything that can be feasibly discovered has been discovered, then theoretical scientists would make up their own models and study those.

    Telorand , in How much longer will the age of Science last?

    When Science ceases to be useful as a method to discover and explain things.

    But on a more specific note, that’s impossible to answer, because you would have to know what that finite set of “knowledge of everything” is, if it is indeed finite. Since we can’t know what the upper limit of “what is knowable” is, it’s impossible to even roughly project when we might know almost everything.

    To complicate matters, you can’t even break the problem down. How about half of everything? A third of everything? One-tenth of everything? How much do we currently know compared to those subsets? We simply don’t know.

    And what if we discover other dimensions? Or what about another universe? What if there’s infinite universes to discover? Knowledge is emergent as a result of doing science, so as long as there’s something we don’t know, we’ll have scientists out there doing science (or whatever its successor is).

    Sims , in How much longer will the age of Science last?

    Just an amateur opinion: If we think of science as a beliefsystem (a system to arrive at a close approximation of truth), it is much more adaptive than any other explanatory system. I think for that reason alone it will ‘win’ in the long run, but emotional systems will carry on/blossom in some form or another as societal breakdowns occurs, or if Science incentives gets compromised by ideology/money, thereby resulting in less trust.

    If we look at what science already know, some Physicists, (carrol etc) believe we already have an ‘engineering corpus’ of everything we see on a daily basis, but as soon as we look at the edges of non-human scales/focus there’s a lot to find yet.

    Even if we ever find a theory of everything and know all the primary forces, we still need to learn all the ways these forces can be combined, and we cant readily predict ‘interesting phenomenons’ down the line from an algorithm, so exploring will continue in our current reductionist exploration, but will perhaps pivot to a more holistic exploration. Steven Wolframs ‘ruliad’ is supposed to contain all possible combinations of everything and all their derivations (forgot the def. ;) ), and he talks about theoretical science realms that we will have a hard time even seeing/understanding. Some argue that the primary forces also varies across the universe. Chaos theory argue that it will take endless energy to collect endless dynamic data - even if we compress it into math/axioms etc. All exploration of chaotic space will take time to compute. Also, If we want to utilize our knowledge we need to either store/retrieve, or compute based on data/algorithms. In Billions of years this use/pursuit of knowledge will cost a lot of energy.

    There’s a lot to think about in such a question, but it’s interesting how we can send shit to other planets, but we completely lack the knowledge/technology to manage a large ecosystem, or organize our self in a way where we don’t harm each other or our habitat. The first is very easy compared dynamic systems. I don’t think we’ve even scratched the surface of what our dynamic systems can do for us if we learn to tame them.

    Anyway, in the long now, thousands of years, I think the system of Science will evolve, improve, but we will not reach 42. There will always (billions of years) be combinations of forces that we cant predict easily and some we have to explore/create to discover/enjoy.

    It got a bit messy, sorry…

    Drunemeton , in How much longer will the age of Science last?
    @Drunemeton@lemmy.world avatar

    Once we determine if the universe is infinite or not we’ll know more about what to expect.

    If it’s finite then we’ll have a stopping point. If it’s not then there’ll be no stopping point.

    Assuming a finite universe then I’d wager we’ll know all that can be known in about 10^23 years.

    Mobiuthuselah , in How much longer will the age of Science last?

    Perhaps I’m not understanding the question, but first and foremost, science is specifically not a belief system. My professors emphasized the fact that we were not to believe anything but rather accept or reject hypotheses based on evidence. Science is a tool. It’s a system of observing, recording, hypothesizing, testing, analyzing, and refining. If you’re asking when we will have refined everything to the point that there are no more questions, I don’t think that will ever happen. What I’ve found is the more questions you answer, the more questions you have.

    FlowVoid , in Given a writing speed of one logical symbol per planck time, would the amount of time it takes to write Rayo's Number exceed Rayo's Number?

    No. The amount of time it takes to write Rayo’s number is 1, in units of Rayotime.

    trolololol ,

    Correct but not the answer we’re looking for.

    FlowVoid ,

    Ok, then it takes two Planck times if you write it in base Rayo.

    orb360 ,

    I love you

    trolololol ,

    🙄😁

    SorteKanin , in Given a writing speed of one logical symbol per planck time, would the amount of time it takes to write Rayo's Number exceed Rayo's Number?
    @SorteKanin@feddit.dk avatar

    Write it how? Seeing as Rayo’s number is defined as the smallest number bigger than what can be written in first order set theory with a googol symbols, you could probably write down the number with, say, googol+1 symbols. Or let’s just say 2*googol symbols, that should certainly be enough. It would not take Rayo’s number amount of seconds to write down 2 * googol symbols.

    TL;DR: No.

    sir_pronoun , in Where does pollution go when it rains?

    Just a non-scientifc opinion: I think it binds to the rain/the humidity and does go into the ground, yes. Depending on where your water comes from, it might not seep into that, I think. And stuff in your lungs may be worse than the same stuff in your stomach, depending on the stuff, I guess.

    What I really came to say: the only long term solution is guillotines

    ConstipatedWatson OP ,

    I suppose guillotines help in a variety of situations, though I would have not imagined them as an extreme way of filtering the lack of actions by politicians and corporations towards the environment 🤔

  • All
  • Subscribed
  • Moderated
  • Favorites
  • [email protected]
  • random
  • lifeLocal
  • goranko
  • All magazines