PugJesus@lemmy.worldM to HistoryPorn@lemmy.worldEnglish · 11 months 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 · 11 months agomessage-square18fedilink
minus-squareI_Has_A_Hat@startrek.websitelinkfedilinkEnglisharrow-up8·edit-210 months agoRemoved by mod
minus-squareCethin@lemmy.ziplinkfedilinkEnglisharrow-up8·11 months agoI assume magnification to spot planes. Basically binoculars without the need to hold them.
Removed by mod
I assume magnification to spot planes. Basically binoculars without the need to hold them.