by Alex Scheeline
The Smithsonian Institution’s National Museum of American History, on the national mall in Washington, D.C., has an especially fascinating exhibit on Thomas Edison. The exhibit highlights the development of electricity and lighting, and, more generally, invention. In late 2017, I visited an area that featured a set of lamps—including a low-pressure sodium vapor lamp, a mercury lamp, an incandescent lamp, and a compact fluorescent lamp.
Posted by Donna Giachetti