History of a Light Bulb

  • Humphrey Davy

    Humphrey Davy
    In 1809 Humphrey Davy, a British chemist, began the idea of an incandescent light bulb. He simply used a high power battery to create a current between two charcoal strips creating an intense incandescent light
  • Joseph Wilson Swan

    Joseph Wilson Swan
    Joseph Wilson Swan, an Englishman, invented the first incandescent lamp with a paper filament. This was perfect for commercial use because paper was cheap to make and buy.
  • Heinrich Gobel

    Heinrich Gobel
    In 1893 Heinrich Gobel won court against Thomas Edison as the inventor of the electric lamp and received some profit.
  • William D. Coolidge

    William D. Coolidge
    William D. Coolidge developed a light bulb that consists of a fine tungsten powder pressed into bars. When these were heated at extreme heats it formed a wire filament
  • Frosted Light Bulbs

    Frosted Light Bulbs
    In 1925 light bulbs with frosted glass were produced to produce a soft light, spreading light more evenly
  • Modern Light Bulb

    Modern Light Bulb
    In modern days light bulbs are made from magnetic currents and gas that when joined exited the gas and emits light. There are light bulbs now that last for over 2500 days.....STRAIGHT