The Not-Unbearable Extra-sub-Heaviness of Light (1876)

JF Ptak Science Books  Quick Post (Overall post 5119)

I thought it would be interesting to share this engraving of a portable electric light apparatus. This does come very early in the modern (post 1850) sense of "electric light", but, still, even knowing of how early this is in this fiel dit is still a little shocking to see the weight of the engineering and ingenuity in providing mobile electric light.  

• "THE comparatively infrequent employment of electric light, considering the great success achieved in its production, would at first sight appear to be due to something in the application of the electricity itself. It has been repeatedly and satisfactorily proved that a continuous and powerful light can be produced by electricity, and the question naturally arises, Why is it not more frequently employed for practical purposes?"
• "For transportation of the Dynamo-electric Light Apparatus is mounted on a wagon, with steam engine, the whole weighing 4,960 lbs. The combination has proved very serviceable on account of its lightness and compactness."-- Siemens' Electric Light Apparatus. Nature 14, 133–136 (1876).