-
Bow-gun of crusaders' days recalls ancient warfare Bow-gun of crusaders' days recalls ancient warfare
-
Popular Mechanics, v. 63, n. 1, 1935
-
Fireproof suit for aviators floats wearer in water Fireproof suit for aviators floats wearer in water
-
The fort of four nations The fort of four nations
-
Gun-train guards ends of Panama canal rolling fort crosses isthmus in two hours Gun-train guards ends of Panama canal rolling fort crosses isthmus in two hours
-
Cardboard "army" is target for german riflemen Cardboard "army" is target for german riflemen
-
Popular Mechanics, v. 62, n. 6, 1934
-
"Invisible dust" curtain to halt war planes "Invisible dust" curtain to halt war planes
-
Fighting plane without tail resembles a bat Fighting plane without tail resembles a bat
-
Navy's first iron ship is ninety years old Navy's first iron ship is ninety years old
-
Cavalry carries radio set on horse's back Cavalry carries radio set on horse's back
-
Navy's latest plane carrier is fast in trials Navy's latest plane carrier is fast in trials
-
Building camouflaged by net to foil air attack Building camouflaged by net to foil air attack
-
Popular Mechanics, v. 62, n. 5, 1934
-
One-man bulletproof shield used in war on crime One-man bulletproof shield used in war on crime
-
"Sallying ship" helps float pride of british navy
"Sallying ship" helps float pride of british navy
-
Popular Mechanics, v. 62, n. 4, 1934
-
Popular Mechanics, v. 75, n. 5, 1941
-
The war horse at school The war horse at school
-
Why do they fly that way? Why do they fly that way?
-
Mustard gas is still most effective in war
Mustard gas is still most effective in war
-
Direction finder is eye and ear of submarine Direction finder is eye and ear of submarine
-
Popular Mechanics, v. 62, n. 3, 1934
-
Sea phone aids rescue of submarine crews Sea phone aids rescue of submarine crews
-
Bullet-proof glass in plane protects observer Bullet-proof glass in plane protects observer
