Quilotoa@lemmy.ca to Today I Learned (TIL)@lemmy.ca · 5 days agoTIL in the early 1960s, the United States shot 480 000 000 copper needles into spaceen.wikipedia.orgexternal-linkmessage-square18linkfedilinkarrow-up1108arrow-down10
arrow-up1108arrow-down1external-linkTIL in the early 1960s, the United States shot 480 000 000 copper needles into spaceen.wikipedia.orgQuilotoa@lemmy.ca to Today I Learned (TIL)@lemmy.ca · 5 days agomessage-square18linkfedilink
minus-squarexylogxlinkfedilinkEnglisharrow-up33·5 days agoThey created an artificial ionosphere and were able to successfully bounce radio comms off it. Totally wild.
They created an artificial ionosphere and were able to successfully bounce radio comms off it. Totally wild.