Uploaded January 2013 | Updated September 2026, 2 weeks ago
A spanish language documentary on materials which glow when subjected to invisible radiation. From the GE film catalog, "This picture shows how modern lamp research is leading toward improved sight, more favorable working conditions, and more attractive living accommodations through better light. Man's dependence since the beginning of history on some form of fire or heat for light is traced to the modern home lighting methods of today. Following a brief introduction to the principles of luminescence, fluorescent lighting is explained, and the successive steps in the manufacture of the fluorescent lamp are described. "
A spanish language documentary on materials which glow when subjected to invisible radiation. From the GE film catalog, "This picture shows how modern lamp research is leading toward improved sight, more favorable working conditions, and more attractive living accommodations through better light. Man's dependence since the beginning of history on some form of fire or heat for light is traced to the modern home lighting methods of today. Following a brief introduction to the principles of luminescence, fluorescent lighting is explained, and the successive steps in the manufacture of the fluorescent lamp are described. "
