Abstract
I WAS one of a deputation of River Tyne Commissioners who visited the South Foreland, to see the experimental lights now on trial there, on Saturday night, August 30. We were walking across the fields from the lights towards the observing hut No. 2, a distance of about a mile and a half. There was a fog more or less, and a shower of rain as we were approaching the hut, and every time the electric light from A tower revolved, a rainbow, very like a faint lunar bow, made its appearance. I could not see any prismatic colour, and the bow was only produced by the large electric light, with carbons of 1 inch in diameter. There was no bow visible from the old light, which has carbons of about inch square, and none from either the gas or oil lights. I was informed that this was the first time such a phenomenon had been observed.
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NEWALL, R. Electrical Rainbow. Nature 30, 464 (1884). https://doi.org/10.1038/030464e0
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DOI: https://doi.org/10.1038/030464e0
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