𒉀TheGuyTM3𒉁@lemmy.ml to Asklemmy@lemmy.mlEnglish · 1 day agoWhy would'nt this work?lemmy.mlimagemessage-square164fedilinkarrow-up1447arrow-down121file-text
arrow-up1426arrow-down1imageWhy would'nt this work?lemmy.ml𒉀TheGuyTM3𒉁@lemmy.ml to Asklemmy@lemmy.mlEnglish · 1 day agomessage-square164fedilinkfile-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-down3·21 hours agoIirc from the 2 YouTube videos I watched light can theoretically bend thanks to gravity, black holes anyone?
minus-squareLongpork3@lemmy.nzlinkfedilinkarrow-up12·21 hours 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-up9·21 hours 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.