Balerion6@lemmy.world to Showerthoughts@lemmy.worldEnglish · edit-217 days agoTime travel doesn't work unless you also have teleportation. If you travel to the past/future, Earth will be in a different position in its orbit, and you'll die in space.message-squaremessage-square67fedilinkarrow-up1237arrow-down132
arrow-up1205arrow-down1message-squareTime travel doesn't work unless you also have teleportation. If you travel to the past/future, Earth will be in a different position in its orbit, and you'll die in space.Balerion6@lemmy.world to Showerthoughts@lemmy.worldEnglish · edit-217 days agomessage-square67fedilink
minus-squarefubbernuckin@lemmy.dbzer0.comlinkfedilinkEnglisharrow-up1·16 days agoYou can measure the Doppler shift relative to the cosmic microwave background though
You can measure the Doppler shift relative to the cosmic microwave background though