NASA NTRS · 19650000198
Density trace made with computer printout
Abstract
Special drum for a computer-controlled printer improves density trace of scientific data. The drum provides uniformly shaped characters and evenly spaced variations of print density that precisely reflect data magnitude. This device plots temperature profiles, geographic contours, pressure gradients, electric potential gradients, and magnetic field configurations.
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Wilson, M.. 1965-06-01. Density trace made with computer printout. https://ntrs.nasa.gov/citations/19650000198
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