| The history of the light bulb goes way back at the time | | | | light bulb was introduce in the world by a German |
| when the chief sources of light were candles, gas | | | | watchmakers Henricg Globel. By using his innovative |
| lamps and lanterns that make use of oil. It was as | | | | imagination he made use of bamboo strand inside a |
| early as 1809 when the foundation of the concept of | | | | flute bulb. This concept was further modified in 1875 |
| light bulb was formulated. The history of light bulb is | | | | when Herman Sprengel originated mercury vacuum |
| listed below in a brief yet concrete manner to truly | | | | pump for a convenient light tuber. |
| explain the evolution of a mere idea to a common light | | | | The time span from 1878 to 1880 saw many |
| bulb being use today. | | | | remarkable discoveries such as the use of long lasting |
| In 1809 and English chemist Sir Humphry Davy made | | | | electric light bulb in 1878 by Sir Joseph Wilson while at |
| the invention of the electric luminosity. It was a simple | | | | the same time Edison was working on constant |
| experiment, which constituted a battery connected by | | | | betterment of light bulb and came up with a bamboo |
| the aid of two wires with a charcoal strip at the wire | | | | derived filament in 1880 which lasted for an incredible |
| ends. This in history was the first glowing lamp! | | | | 1200 hours!! |
| This method was overshadowed in 1820 when a | | | | A remarkable evolution took place in early 1906 when |
| scientist by the name of Warren De la made a lamp | | | | the general electrical company became the first |
| design making use of platinum coil in an evacuated | | | | company to officially patent a technique of making |
| tube and passing electrical energy through it. | | | | tungsten strand for light bulbs. |
| In 1835 James Bowman Lindsay presented a | | | | The history of light bulb was on a roll their own many |
| prototype light bulb, which was perhaps lost in the | | | | companies came in and scientist continues to embark |
| invention of the first electrical incandescent arc lamp, | | | | on new techniques for constant improvements. In 1921 |
| which made use of charcoal filament. The credit of this | | | | the first frosted light bulbs were introduced. In 1991 |
| evolution goes to Edward Shepard who made the | | | | Philips invented light bulb lasting more than 60,000 |
| invention in 1850. | | | | hours!! |
| 1854 was the time when perhaps the true form of the | | | | |