traffic light articles
Who invented the four-way automatic traffic light?
The story of who brought the synchronized, four-way automatic traffic light into existence is less about a single invent...
What did Thomas Edison say about light?
The illumination that Thomas Edison brought to the world was not simply a product of a single brilliant flash of insight...
Who invented the emergency light?
The concept of emergency lighting, designed to automatically illuminate when the main power grid fails, is intrinsically...
Who invented street lights in the USA?
The story of how American streets went from dark, hazardous paths to safely illuminated avenues involves several key fig...