this post was submitted on 18 Aug 2023
926 points (97.0% liked)

Memes

45731 readers
1392 users here now

Rules:

  1. Be civil and nice.
  2. Try not to excessively repost, as a rule of thumb, wait at least 2 months to do it if you have to.

founded 5 years ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[โ€“] rog@lemmy.one 13 points 1 year ago (1 children)

Its just a hole though. If you have a tennis racket with no strings and swing it over something stationary the object doesnt move

[โ€“] meekah@lemmy.world 16 points 1 year ago

With the tennis racket analogy both portals would be moving. In the thought experiment from the image just one is moving, resulting in an unaccounted for momentum, unless the people shoot out the blue portal