this post was submitted on 21 Oct 2023
210 points (93.4% liked)

Technology

59641 readers
3063 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots


founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] grahamja@reddthat.com 4 points 1 year ago (3 children)

I also am under the assumption that no material exists that could be stacked tall enough to build a space elevator.

[–] seaQueue@lemmy.world 4 points 1 year ago* (last edited 1 year ago)

You'd want tensile strength rather than compressive. The trick is to anchor a counterweight out beyond your target distance and let it pull the weight of the cable up rather than building a tower. Think of swinging a ball on a string rather than building a skyscraper. Assuming a sufficiently sized counterweight you can support the weight of the anchoring cable plus whatever else you want to hang off of it (space dock, elevator terminus, etc.)

[–] crystalmerchant@lemmy.world 3 points 1 year ago (1 children)

stacked tall enough...? The space elevator concept is a geostationary node orbiting earth directly above a fixed point, with cables running between them. Not a gigantic skyscraper up into the sky. What am I missing?

[–] Cosmicomical@kbin.social 0 points 1 year ago* (last edited 1 year ago)

You probably haven't read 3001: the final odissey, in any case i think most ideas of space elevators are not like a lift, they are more like skyscrapers indeed.
Edit: i might be very wrong though, i'm not up to date on this

[–] Heggico@lemmy.world 2 points 1 year ago

If you build it tall enough, centrifugal force will start pulling on it. Building it that way though... But yeah. Doubt the right material exist atm.