PugJesus@lemmy.worldM to HistoryPorn@lemmy.worldEnglish · 11 months agoTwo Imperial German sound locators for detecting airplanes, WW1, 1917lemmy.worldimagemessage-square18fedilinkarrow-up1245arrow-down12
arrow-up1243arrow-down1imageTwo Imperial German sound locators for detecting airplanes, WW1, 1917lemmy.worldPugJesus@lemmy.worldM to HistoryPorn@lemmy.worldEnglish · 11 months agomessage-square18fedilink
minus-squareworkerONE@lemmy.worldlinkfedilinkEnglisharrow-up9·11 months 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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