The Bard's Lemmy
  • Communities
  • Create Post
  • heart
    Support Lemmy
  • search
    Search
  • Login
  • Sign Up
Stamets@lemmy.dbzer0.com to Science Memes@mander.xyzEnglish · 3 months ago

Fight me

lemmy.dbzer0.com

message-square
40
link
fedilink
372

Fight me

lemmy.dbzer0.com

Stamets@lemmy.dbzer0.com to Science Memes@mander.xyzEnglish · 3 months ago
message-square
40
link
fedilink
alert-triangle
You must log in or # to comment.
  • Yardy Sardley@lemmy.ca
    link
    fedilink
    English
    arrow-up
    128
    ·
    3 months ago

    Refrigeration cycle scoffs at your mere 100% efficiency

    • Lemmyoutofhere@lemmy.ca
      link
      fedilink
      English
      arrow-up
      2
      ·
      3 months ago

      Refrigeration just moves heat, it does not create it.

      • GissaMittJobb@lemmy.ml
        link
        fedilink
        English
        arrow-up
        3
        ·
        3 months ago

        Why create heat when you can just steal it from somewhere else, though

        • ManOMorphos@lemmy.world
          link
          fedilink
          English
          arrow-up
          2
          ·
          3 months ago

          “Waste heat” is a relative term.

        • potoooooooo ✅️@lemmy.world
          link
          fedilink
          English
          arrow-up
          1
          ·
          3 months ago

          Why drink my milkshake when I can drink yours? I can DRINK IT UP!

      • T156@lemmy.world
        link
        fedilink
        English
        arrow-up
        3
        ·
        3 months ago

        It would end up creating some due to inefficiencies, which would contribute to the heat at the end.

  • stupidcasey@lemmy.world
    link
    fedilink
    English
    arrow-up
    49
    arrow-down
    1
    ·
    3 months ago

    Not true, it is true that it is heating at %100 efficiency that is to say %100 of the electrical energy is being transferred into heat (although technically some is being transferred into IR light not necessarily what you want) but your goal is probably not to simply create heat your goal is probably to heat the room or at least yourself and their is plenty of waste heat going off into space somewhere also you can achieve more than %100 heat transfer by compressing the external air’s heat we call these heat pumps and they can achieve +400%. The key word is efficiency.

    • Soup@lemmy.world
      link
      fedilink
      English
      arrow-up
      26
      ·
      3 months ago

      It’s always wild to me that 100% heating efficiency is actually kinda not great. Also the fact that we can use the heat from air that is colder than what we want in order to generate more heat I mean that’s just witchcraft.

      • Devjavu@lemmy.dbzer0.com
        link
        fedilink
        English
        arrow-up
        20
        ·
        edit-2
        3 months ago

        Well, we’re not generating heat with heat pumps. We’re compressing atoms to make them angrier and pass other atoms by that bunch to even out the angriness. Could also substitute the word jiggy for angry.

        • Soup@lemmy.world
          link
          fedilink
          English
          arrow-up
          1
          ·
          3 months ago

          I get that(enough, anyway, I just need to watch some videos on them to be honest) but it’s still super wild to say out loud.

          • Devjavu@lemmy.dbzer0.com
            link
            fedilink
            English
            arrow-up
            1
            ·
            3 months ago

            Which part, getting jiggy wit it or the witchcraft?

    • finitebanjo@lemmy.world
      link
      fedilink
      English
      arrow-up
      4
      ·
      3 months ago

      I always like to muse that in terms of electronics the heat is caused by resistance to current and that heat is usually considered inefficiency, and since no other load exist or work is done that means heating elements are about -100% efficient.

    • Legianus@programming.dev
      link
      fedilink
      English
      arrow-up
      3
      ·
      edit-2
      3 months ago

      deleted by creator

      • stupidcasey@lemmy.world
        link
        fedilink
        English
        arrow-up
        1
        ·
        3 months ago

        deleted by creator

    • swagmoney@lemmy.ca
      link
      fedilink
      English
      arrow-up
      1
      ·
      3 months ago

      ir light is heat dawg

  • Fingolfin@lemmynsfw.com
    link
    fedilink
    English
    arrow-up
    19
    ·
    3 months ago

    Well, heat pumps are significantly more efficient than traditional heaters because they move heat rather than generating it. A heat pump can deliver three to four times more heat energy than the electrical energy it consumes, making them 300-400% efficient.

  • ryedaft@sh.itjust.works
    link
    fedilink
    English
    arrow-up
    17
    ·
    3 months ago

    Boo, get heat pump you loser

  • Frezik@lemmy.blahaj.zone
    link
    fedilink
    English
    arrow-up
    12
    ·
    3 months ago

    Most of the time, we consider heat output to be inefficient. It only works here because heat happens to be its purpose.

    You could say it’s 0% efficient.

    • credo@lemmy.world
      link
      fedilink
      English
      arrow-up
      18
      ·
      3 months ago

      I dunno, I’m seeing some light.

      • unrealMinotaur@sh.itjust.works
        link
        fedilink
        English
        arrow-up
        8
        ·
        3 months ago

        Light is absorbed by materials and ultimately becomes heat.

      • 🍉 Albert 🍉@lemmy.world
        link
        fedilink
        English
        arrow-up
        2
        ·
        3 months ago

        and what happens to the energy of said photons once they interact with your retina?

  • JackbyDev@programming.dev
    link
    fedilink
    English
    arrow-up
    10
    ·
    3 months ago

    https://en.wikipedia.org/wiki/Heat_pump

  • TacoButtPlug@sh.itjust.works
    link
    fedilink
    English
    arrow-up
    3
    ·
    3 months ago

    (As a nerd) I came here for the nerdy comments.

  • betanumerus@lemmy.ca
    link
    fedilink
    English
    arrow-up
    3
    ·
    3 months ago

    People say efficient without saying efficient at doing what with what.

  • khannie@lemmy.world
    link
    fedilink
    English
    arrow-up
    3
    ·
    3 months ago

    Turn that entropy up to 11, boi!

  • Zerush@lemmy.ml
    link
    fedilink
    English
    arrow-up
    3
    ·
    3 months ago

    That is how the power supply of my Laptop look like, playing Cyberpunk 2077 on my laptop.

    • baldingpudenda@lemmy.world
      link
      fedilink
      English
      arrow-up
      5
      ·
      3 months ago

      • cassandrafatigue@lemmy.dbzer0.com
        link
        fedilink
        English
        arrow-up
        4
        ·
        3 months ago

        Winter is gaming season.

    • Nikls94@lemmy.world
      link
      fedilink
      English
      arrow-up
      2
      ·
      3 months ago

      I was testing the AI image generating capabilities of a M1 MacBook Air 16GB.

      It shuts down at 113°C (235°Freedom)

      • Zerush@lemmy.ml
        link
        fedilink
        English
        arrow-up
        1
        ·
        3 months ago

        113ºC is hard on the limit, chips at 140ºC convert the PC in an Paperweight. Normally they desconnect the Device with >90-95º. Permit 113º is maybe related to an programmed obsolence policy from Apple.

  • LillyPip@lemmy.ca
    link
    fedilink
    English
    arrow-up
    2
    ·
    3 months ago

    So hot.

  • jawa22@lemmy.blahaj.zone
    link
    fedilink
    English
    arrow-up
    2
    ·
    3 months ago

    You’re objectively wrong here.

  • Bluewing@lemmy.world
    link
    fedilink
    English
    arrow-up
    2
    ·
    3 months ago

    Pfftt. Splitting wood is peak heat thermodynamics. And I can attest it keeps you warm down to -40F.

Science Memes@mander.xyz

science_memes@mander.xyz

Subscribe from Remote Instance

Create a post
You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !science_memes@mander.xyz

Welcome to c/science_memes @ Mander.xyz!

A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.



Rules

  1. Don’t throw mud. Behave like an intellectual and remember the human.
  2. Keep it rooted (on topic).
  3. No spam.
  4. Infographics welcome, get schooled.

This is a science community. We use the Dawkins definition of meme.



Research Committee

  • !spiders@lemmy.world

Other Mander Communities

Science and Research

  • !academia@mander.xyz
  • !science@mander.xyz
  • !scicomm@mander.xyz

Biology and Life Sciences

  • !abiogenesis@mander.xyz
  • !animal-behavior@mander.xyz
  • !anthropology@mander.xyz
  • !arachnology@mander.xyz
  • !balconygardening@slrpnk.net
  • !biodiversity@mander.xyz
  • !biology@mander.xyz
  • !biophysics@mander.xyz
  • !botany@mander.xyz
  • !ecology@mander.xyz
  • !entomology@mander.xyz
  • !fermentation@mander.xyz
  • !herpetology@mander.xyz
  • !houseplants@mander.xyz
  • !medicine@mander.xyz
  • !microscopy@mander.xyz
  • !mycology@mander.xyz
  • !nudibranchs@mander.xyz
  • !nutrition@mander.xyz
  • !palaeoecology@mander.xyz
  • !palaeontology@mander.xyz
  • !photosynthesis@mander.xyz
  • !plantid@mander.xyz
  • !plants@mander.xyz
  • !reptiles and amphibians@mander.xyz

Physical Sciences

  • !astronomy@mander.xyz
  • !chemistry@mander.xyz
  • !earthscience@mander.xyz
  • !geography@mander.xyz
  • !geospatial@mander.xyz
  • !nuclear@mander.xyz
  • !physics@mander.xyz
  • !quantum-computing@mander.xyz
  • !spectroscopy@mander.xyz

Humanities and Social Sciences

  • !archaeology@mander.xyz
  • !folklore@mander.xyz
  • !history@mander.xyz
  • !old_maps@mander.xyz

Practical and Applied Sciences

  • !exercise-and sports-science@mander.xyz
  • !gardening@mander.xyz
  • !self sufficiency@mander.xyz
  • !soilscience@slrpnk.net
  • !terrariums@mander.xyz
  • !timelapse@mander.xyz

Memes

  • !bushrat_confidential@slrpnk.net
  • !science_memes@mander.xyz

Miscellaneous

  • !answered@mander.xyz
  • !mander@mander.xyz
Visibility: Public
globe

This community can be federated to other instances and be posted/commented in by their users.

  • 1.45K users / day
  • 3.97K users / week
  • 6.44K users / month
  • 13.5K users / 6 months
  • 1 local subscriber
  • 18K subscribers
  • 6.05K Posts
  • 85.1K Comments
  • Modlog
  • mods:
  • Salamander@mander.xyz
  • fossilesque@mander.xyz
  • SciBot@mander.xyz
  • fossilesque@lemmy.dbzer0.com
  • BE: 0.19.14
  • Modlog
  • Instances
  • Docs
  • Code
  • join-lemmy.org