PugJesus@lemmy.worldM to HistoryPorn@lemmy.worldEnglish · 7 months agoTwo Imperial German sound locators for detecting airplanes, WW1, 1917lemmy.worldimagemessage-square19fedilinkarrow-up1254arrow-down12
arrow-up1252arrow-down1imageTwo Imperial German sound locators for detecting airplanes, WW1, 1917lemmy.worldPugJesus@lemmy.worldM to HistoryPorn@lemmy.worldEnglish · 7 months agomessage-square19fedilink
minus-squareI_Has_A_Hat@startrek.websitelinkfedilinkEnglisharrow-up9·edit-26 months agoRemoved by mod
minus-squareCethin@lemmy.ziplinkfedilinkEnglisharrow-up9·7 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.