Centurion@lemmy.world to Funny: Home of the Haha@lemmy.world · 8 months agoMath skillslemmy.worldimagemessage-square16fedilinkarrow-up1292arrow-down117cross-posted to: confidently_incorrect@lemmy.world
arrow-up1275arrow-down1imageMath skillslemmy.worldCenturion@lemmy.world to Funny: Home of the Haha@lemmy.world · 8 months agomessage-square16fedilinkcross-posted to: confidently_incorrect@lemmy.world
minus-squarexantoxis@lemmy.worldlinkfedilinkarrow-up3·8 months agoMy twin sister and I were born at the exact same time on Earth but then she was immediately launched into space at 90% of the speed of light. When I was 6, she was 3. Now I’m 70, how old is she in her own reference frame?
My twin sister and I were born at the exact same time on Earth but then she was immediately launched into space at 90% of the speed of light. When I was 6, she was 3. Now I’m 70, how old is she in her own reference frame?