Tag Archives: lightbulbs

The Dearth Of Lightbulbs

According to Wikipedia Vasily Vladimirovich Petrov developed the first persistent electric arc in 1802, and English chemist Humphry Davy gave a practical demonstration of an arc light in 1806, using a battery and a platinum strip to produce a brief glow. Thomas Edison didn’t invent the lightbulb, but his lab discovered a tungsten filament that […]