Assertion: primary cosmic ray | /r/HasProperty | a flux of charged particles
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Source sentences:
text: Observations of the tracks of the particles of cosmic rays in a cloud chamber placed in the field of a laboratory magnet (D. V. SkobePtsyn, 1927) and of their deflections in the earth’s magnetic field by means of gas-discharge detectors lifted into the stratosphere by balloons (S. N. Vernov and R. Millikan, 1935–37) proved that primary cosmic rays are a flux of charged particles, mainly protons (the nuclei of hydrogen atoms).
text: Observations of the tracks of the particles of cosmic rays in a cloud chamber placed in the field of a laboratory magnet (D. V. SkobePtsyn, 1927) and of their deflections in the earth’s magnetic field by means of gas-discharge detectors lifted into the stratosphere by balloons (S. N. Vernov and R. Millikan, 1935–37) proved that primary cosmic rays are a flux of charged particles, mainly protons (the nuclei of hydrogen atoms).