this post was submitted on 14 Oct 2024
134 points (89.9% liked)

Futurology

1851 readers
84 users here now

founded 1 year ago
MODERATORS
voidx@futurology.today
Lugh@futurology.today
Espiritdescali@futurology.today
AwesomeLowlander@futurology.today
134
Gravity can exist without mass, dark matter could be myth: Study (interestingengineering.com)
submitted 2 months ago by Espiritdescali@futurology.today to c/futurology@futurology.today
42 comments fedilink hide all child comments
you are viewing a single comment's thread
view the rest of the comments
[–] ArbitraryValue@sh.itjust.works 5 points 2 months ago (1 children)

Is this the sort of negative mass that would possibly allow for stable wormholes and therefore time travel?

[–] pyr0ball@sh.itjust.works 2 points 2 months ago (1 children)

I'd recommend Stephen Baxter's "Ring" novel as a primer on cosmic strings, domain walls (the shell-like mass described here) and using wormholes for time travel.

Basically covers all of the funky science described in this article

[–] Revan343@lemmy.ca 2 points 2 months ago (1 children)

It's also really well written. You'll have to read the rest of the Xeelee sequence afterwards though

[–] pyr0ball@sh.itjust.works 2 points 2 months ago

Agreed. My favorite is still Raft