November 9, 2020
Streetlights
By Jon Wren In the 18th century, some American cities began placing streetlamps in parks and at busy intersections to provide extra light and safety for their citizens. But the earliest lamps weren’t very efficient and had to be cleaned often due to the soot caused by the flame. In Philadelphia, Benjamin Franklin watched the lamps being cleaned and had an idea for a new design. He proposed using four flat panes of glass on the sides, a long funnel above to draw up the smoke, and crevices below to allow for air. Franklin’s lamp was brighter, cleaner, and more





