In 1890, a Mr. P. T. Cumming was killed instantaneously when the tin soldering torch he was using to repair a street lamp touched an energized element of the arc-light within. (By the way ...
so that the lamp housing did not cast a shadow and improved the mechanism by which the length of the arc was kept constant. This gave a steadier light. Crompton and Company were the UK's first ...
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so that the lamp housing did not cast a shadow and improved the mechanism by which the length of the arc was kept constant. This gave a steadier light. Crompton and Company were the UK's first ...