Poplar?@lemmy.world to 196@lemmy.blahaj.zoneEnglish · 1 day agoStay rulelemmy.worldimagemessage-square79linkfedilinkarrow-up1838arrow-down115
arrow-up1823arrow-down1imageStay rulelemmy.worldPoplar?@lemmy.world to 196@lemmy.blahaj.zoneEnglish · 1 day agomessage-square79linkfedilink
minus-squareSmoothOperator@lemmy.worldlinkfedilinkEnglisharrow-up1·edit-217 hours agoWouldn’t the conversations go like this? Me: I’m about 2/3rds out the longest arm of my galaxy Alien: OK vs Me: I’m at the place where the CMBR is evenly redshifted in all directions. Alien: Huh, me too?
minus-squarestebo@lemmy.dbzer0.comlinkfedilinkEnglisharrow-up2·9 hours ago I’m at the place where the CMBR is evenly redshifted in all directions. that’s not a place that’s a frame of motion (i think) the only issue is it’s hard to define an origin for that frame, so yeah it’s not gonna be all that useful indeed
Wouldn’t the conversations go like this?
Me: I’m about 2/3rds out the longest arm of my galaxy
Alien: OK
vs
Me: I’m at the place where the CMBR is evenly redshifted in all directions.
Alien: Huh, me too?
that’s not a place that’s a frame of motion (i think)
the only issue is it’s hard to define an origin for that frame, so yeah it’s not gonna be all that useful indeed