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IN the course of taking submillimetre chromospheric data from Concorde 001 during the eclipse of June 30 (ref. 1), it proved possible to record information on the visual thickness of the chromosphere which is accurate enough to merit reporting. During an eclipse viewed conventionally from a stationary site on the ground, the precise time at which

Chimonas and Hines1,2 suggested that atmospheric gravity waves could be generated by the supersonic passage of the Moon's shadow through the Earth's atmosphere during a solar eclipse. Beer and May3 pointed out that the eclipse of June 30, 1973, would provide an opportunity of investigating the idea, and perhaps establish a link between travelling

On June 30, 1973, Concorde 001 intercepted the path of a solar eclipse over North Africa, Flying at Mach 2.05 the aircraft provided seven observers from France, Britain and the United States with 74 min of totality bounded by extended second (7 min) and third (12 min) contacts. The former permitted searches for time variations of much longer period

Abstract image available at: http://adsabs.harvard.edu/abs/1973SoPh...31..319B

Abstract image available at: http://cdsads.u-strasbg.fr/abs/1973SoPh...31..377V