published on: 2013-11-29 05:55:20
engineeringhistory: Allison Associates Radar, circa late 1940s.
engineeringhistory: Telstar II Satellite, Cleveland, Ohio, August
wapiti3: Toadstools, mushrooms, Fungi, edible and poisonous;
cid25.tumblr.com/post/68438556070/
cid25.tumblr.com/post/68482480183/
cid25.tumblr.com/post/68482489979/