Midlatitude altitude profiles of night airglow from the OH (8, 3) band, the 5577 A OI line, and the continuum at 5775 A are reported. The profiles were obtained from rocketborne radiometers flown into the regions of interest. The maximum emission occurred at about 102 km for the OI line, 91 km for the continuum, and 97 km for the hydroxyl band.
The addition-of-velocities hypothesis, which Kantor recently claimed to have verified, has been investigated using a different experimental arrangement. A laser beam was'passed through a moving mica window, which might be considered as a Huygens-type moving source of light. An interferometer was built with which to detect and measure any change in speed of the emitted light. The apparatus allowed investigation of: the effects of window speed, which could be varied continuously up to 63m/sec; direction of window motion with respect to direction of propagation; and the effects of air in the beam path. Emission theory as used by Kantor predicted a-I fringe shift; however, no shift was observed under any conditions. The estimated sensitivity of the method is 1/20 fringe. Our results are therefore consistent with the second postulate of special relativity, but not with Kantor's hypothesis.
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