Showerthoughts

29003 readers

338 users here now

A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.

Rules

All posts must be showerthoughts
The entire showerthought must be in the title
Posts must be original/unique
Be good to others - no bigotry - including racism, sexism, ableism, homophobia, transphobia, or xenophobia
Adhere to Lemmy's Code of Conduct

founded 1 year ago

MODERATORS

vatlark@lemmy.world

forkball@lemmy.world

quinten@lemmy.world

Thekingoflorda@lemmy.world

What if there's a bigger, still unknown reference point? (lemmy.world)

submitted 5 months ago by ViscloReader@lemmy.world to c/showerthoughts@lemmy.world

12 comments fedilink hide all child comments

When we think about teleportation, there's always someone talking about how you should take into account the earth and the sun moving through space. Let's step back a little (not so much) what if the galaxy we're currently in is rotating really really fast around another, bigger, still unknown, spacial object?

you are viewing a single comment's thread
view the rest of the comments

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

Earth itself is moving around the sun at about100,000 km/h and the sun is traveling through the galaxy st about 1 million km/h.

So if Marty went back/forward just one hour then he'd be about 1,100,000 kilometers away from Earth in space (or 900,000 kilometers, depending on the orbital direction of Earth relative to the sun's direction of travel).

And then there's the motion and speed of the Milkyway itself.

This is all assuming that the layout of the underlying fabric of spacetime is absolute (which it seems to be, outside of expansion).