An apparatus has been designed for the photographic observation of fluid flow between concentric isothermal spheres. A description of the apparatus and the solutions to photographic problems encountered are presented and discussed.
The resolution and blur due to image motion for air-to-air photography are discussed. Analyses involving range, relative velocities, miss distances, focal lengths, exposure times, angular rates and lens-film resolution capabilities are presented, Equations are derived for resolution and image blur due to linear and/or angular motions. Curves and nomograms are presented which permit determination of the parameters.
For many years optics has been our aid to seeing the world beyond the earth's atmosphere. It seems appropriate that optics should be used to simulate the visual beyond, so as to provide the means to research and train for our ventures into space. Present day optical displays are capable of authentically reproducing the scenes as will be observed through our space vehicles windows. The problem is to provide these simulated scenes with sufficient realism to facilitate use as a research and training device. The emphasis is placed on the dynamic visual cues (behavioral realism) rather than on pictorial representation. Virtual image display has become the byword of visual simulation for its ability to place an image anywhere in the distance. This type of display essentially provides depth perception to two-dimensional images.
All "states-of- the-art" associated with the Missile/Space industry have been forced to progress and develop rapidly within the past few years. This rate of development is expected to increase within the coming years, however impossible it may seem.