Quilotoa@lemmy.ca to Today I Learned (TIL)@lemmy.ca · 6 days agoTIL in the early 1960s, the United States shot 480 000 000 copper needles into spaceen.wikipedia.orgexternal-linkmessage-square13fedilinkarrow-up1105arrow-down10
arrow-up1105arrow-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 · 6 days agomessage-square13fedilink
minus-squareMyMotherIsAHamster@lemmy.calinkfedilinkarrow-up19·6 days agoThat’s wild, I had never heard of this.
minus-squarexylogx@lemmy.worldlinkfedilinkEnglisharrow-up33·6 days agoThey created an artificial ionosphere and were able to successfully bounce radio comms off it. Totally wild.
That’s wild, I had never heard of this.
They created an artificial ionosphere and were able to successfully bounce radio comms off it. Totally wild.