A Method for the Instantaneous Determination of the Velocity and Direction of the Wind
A 1924 NASA technical report describing an instrument method for measuring wind speed and direction instantaneously, with figures of electrical circuit diagrams, a magnet and coil layout, a time-response graph, a calibration curve, and film strips of recorded traces. Designers may take from it the sparse, grid-based scientific plotting and schematic line drawings typical of early twentieth-century engineering reports.
