Abstract
A NEW device for obtaining photographs of lightning in daylight is described by Dr. B. F. J. Schonland. The electromagnetic pulsations sent out by the 'leader' stroke which initiates the lightning discharge are picked up by an aerial circuit and used to pull a trigger opening the camera shutter. The lag is less than 0·005 sec., so that the shutter is openbefore the first return stroke of the lightning occurs.
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Points from Foregoing Letters. Nature 141, 123 (1938). https://doi.org/10.1038/141123c0
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DOI: https://doi.org/10.1038/141123c0