PugJesus@lemmy.worldM to HistoryPorn@lemmy.worldEnglish · 1 year agoTwo Imperial German sound locators for detecting airplanes, WW1, 1917lemmy.worldimagemessage-square18fedilinkarrow-up1248arrow-down12
arrow-up1246arrow-down1imageTwo Imperial German sound locators for detecting airplanes, WW1, 1917lemmy.worldPugJesus@lemmy.worldM to HistoryPorn@lemmy.worldEnglish · 1 year agomessage-square18fedilink
minus-squareworkerONE@lemmy.worldlinkfedilinkEnglisharrow-up9·1 year agoBefore radar was invented, we pointed lights at the sky hoping to see enemy airplanes.
Before radar was invented, we pointed lights at the sky hoping to see enemy airplanes.
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