Quilotoa@lemmy.ca to Today I Learned (TIL)@lemmy.ca · 1 day agoTIL in the early 1960s, the United States shot 480 000 000 copper needles into spaceen.wikipedia.orgexternal-linkmessage-square17fedilinkarrow-up193arrow-down10
arrow-up193arrow-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 · 1 day agomessage-square17fedilink
minus-squareMyMotherIsAHamster@lemmy.calinkfedilinkarrow-up18·1 day agoThat’s wild, I had never heard of this.
minus-squarexylogx@lemmy.worldlinkfedilinkEnglisharrow-up32·1 day 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.