Along time ago, when my boys were small children, we were driving across Cape Canveral (Nasa - Air Force ). I made a joke about a dragonfly paralleing our car. I told them we were watched by Nasa survallence. We probably were.
The stereoscope, used during World War II, helped Allied photo analyzers examine images of enemy territory taken by airplane-mounted cameras. It allowed them to view the film in 3-D.
Along time ago, when my boys were small children, we were driving across Cape Canveral (Nasa - Air Force ). I made a joke about a dragonfly paralleing our car. I told them we were watched by Nasa survallence. We probably were.