𒉀TheGuyTM3𒉁@lemmy.ml to Asklemmy@lemmy.mlEnglish · 27 days agoWhy would'nt this work?lemmy.mlimagemessage-square228fedilinkarrow-up1546arrow-down131file-text
arrow-up1515arrow-down1imageWhy would'nt this work?lemmy.ml𒉀TheGuyTM3𒉁@lemmy.ml to Asklemmy@lemmy.mlEnglish · 27 days agomessage-square228fedilinkfile-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-up1arrow-down3·26 days agoIirc from the 2 YouTube videos I watched light can theoretically bend thanks to gravity, black holes anyone?
minus-squareLongpork3@lemmy.nzlinkfedilinkarrow-up12·26 days agoSpace bends due to gravity. Light continues in a straight line through the now non-linear space, thus appearing to bend.
minus-squareKlear@lemmy.worldlinkfedilinkEnglisharrow-up9·26 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.
Iirc from the 2 YouTube videos I watched light can theoretically bend thanks to gravity, black holes anyone?
Space bends due to gravity. Light continues in a straight line through the now non-linear space, thus appearing to bend.
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.