𒉀TheGuyTM3𒉁@lemmy.ml to Asklemmy@lemmy.mlEnglish · 12 days agoWhy would'nt this work?lemmy.mlexternal-linkmessage-square201fedilinkarrow-up11arrow-down10file-text
arrow-up11arrow-down1external-linkWhy would'nt this work?lemmy.ml𒉀TheGuyTM3𒉁@lemmy.ml to Asklemmy@lemmy.mlEnglish · 12 days agomessage-square201fedilinkfile-text
It can look dumb, but I always had this question as a kid, what physical principles would prevent this?
minus-squareAurora_TheFirstLight@lemmy.blahaj.zonelinkfedilinkarrow-up0·12 days agoIirc from the 2 YouTube videos I watched light can theoretically bend thanks to gravity, black holes anyone?
minus-squareKlear@lemmy.worldlinkfedilinkEnglisharrow-up0·12 days agoGravity bends spacetime, light always goes in a straight line, bent spacetime means straight lines can be curvy. That all checks out. But none of that helps you with FTL communication.
minus-squareLongpork3@lemmy.nzlinkfedilinkarrow-up0·12 days agoSpace bends due to gravity. Light continues in a straight line through the now non-linear space, thus appearing to bend.
Iirc from the 2 YouTube videos I watched light can theoretically bend thanks to gravity, black holes anyone?
Gravity bends spacetime, light always goes in a straight line, bent spacetime means straight lines can be curvy. That all checks out.
But none of that helps you with FTL communication.
Space bends due to gravity. Light continues in a straight line through the now non-linear space, thus appearing to bend.