Campfyre
  • Communities
  • Create Post
  • Create Community
  • heart
    Support Lemmy
  • search
    Search
  • Login
  • Sign Up
fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 12 天前

just beat it

mander.xyz

message-square
43
fedilink
690

just beat it

mander.xyz

fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 12 天前
message-square
43
fedilink
  • Wilco@lemm.ee
    link
    fedilink
    English
    arrow-up
    33
    ·
    12 天前

    If a Mars lander hits itself with a shovel and no one is around to hear it … does it make a sound?

    • Shanmugha@lemmy.world
      link
      fedilink
      English
      arrow-up
      15
      ·
      12 天前

      It does (ok, one catch: if there’s an atmosphere), sound has physical nature. The trick is in asking whether music/art/languages exist after any sentient life is gone

      • RvTV95XBeo@sh.itjust.works
        link
        fedilink
        English
        arrow-up
        17
        arrow-down
        1
        ·
        12 天前

        Can’t sound transfer through the casing even if it’s not vibrating air in the process?

        • Shanmugha@lemmy.world
          link
          fedilink
          English
          arrow-up
          9
          arrow-down
          1
          ·
          12 天前

          I think I’ve got your point: that’s not whar we call sound, but yes, the showel and casing will reverberate

          • RvTV95XBeo@sh.itjust.works
            link
            fedilink
            English
            arrow-up
            11
            ·
            12 天前

            https://www.engineeringtoolbox.com/sound-speed-solids-d_713.html

        • Shanmugha@lemmy.world
          link
          fedilink
          English
          arrow-up
          6
          ·
          12 天前

          No, there is a well-known experiment: take something that produces sound, put in a glass, suck air out. Won’t hear a thing

      • Genius@lemmy.zip
        link
        fedilink
        English
        arrow-up
        5
        ·
        12 天前

        No, sound is a sensation. Sonic disturbances aren’t sound unless someone hears them. That’s why sonic frequencies outside the hearing range aren’t sound.

        You should read Berkeley’s Three Dialogues to properly understand the meme.

        • Shanmugha@lemmy.world
          link
          fedilink
          English
          arrow-up
          7
          ·
          12 天前

          So, ultra-not-sound. Thank you, o wise one (/s, of course)

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: [email protected]

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

  • [email protected]

Other Mander Communities

Science and Research

  • [email protected]
  • [email protected]
  • [email protected]

Biology and Life Sciences

  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • !reptiles and [email protected]

Physical Sciences

  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]

Humanities and Social Sciences

  • [email protected]
  • [email protected]
  • [email protected]
  • [email protected]

Practical and Applied Sciences

  • !exercise-and [email protected]
  • [email protected]
  • !self [email protected]
  • [email protected]
  • [email protected]
  • [email protected]

Memes

  • [email protected]
  • [email protected]

Miscellaneous

  • [email protected]
  • [email protected]
Visibility: Public
globe

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

  • 3.45K users / day
  • 6.33K users / week
  • 8.9K users / month
  • 22.3K users / 6 months
  • 2 local subscribers
  • 15.4K subscribers
  • 4.84K Posts
  • 117K Comments
  • Modlog
  • mods:
  • Salamander@mander.xyz
  • fossilesque@mander.xyz
  • SciBot@mander.xyz
  • fossilesque@lemmy.dbzer0.com
  • BE: 0.19.7
  • Modlog
  • Legal
  • Instances
  • Docs
  • Code
  • join-lemmy.org