Beyond the Atmosphere: Early Years of Space Science
 
CHAPTER 6

THE THRESHOLD TO SPACE

 
 
Charts of Cosmic Rays
 
Figure 4(a), at left. Cosmic rays at high geomagnetic latitudes. Figure 4(b), at right. Geomagnetic effect on cosmic rays. A schematic drawing showing how, according to experimental measurements, cosmic ray intensities vary with geomagnetic latitude. See Bowen, Millikan, and Neher in Physical Review 53 (1938): 855-61.

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