25 Answers - Sort by: Date | Rating
Guest
answered 8 months ago
Guest
answered 7 months ago
The light bulb was invented by Thomas Alva Edison in 1879 by improving upon existing designs to construct a model that could last for about 40 hours. Though he is not the first person to conceive the idea of an electric light bulb his work in making the bulb a practical invention marks him as a central figure in the light bulb development process.
He not only succeeded in creating a bulb which could last for about 1200 hours (1880) but also worked to market the bulb as a mass produced commodit
He not only succeeded in creating a bulb which could last for about 1200 hours (1880) but also worked to market the bulb as a mass produced commodit
He not only succeeded in creating a bulb which could last for about 1200 hours (1880) but also worked to market the bulb as a mass produced commodity; he started a number of Electric Companies for research and production in this field.
In 1800 Humphrey Davy managed to make a piece of carbon glow by attaching wires and then connecting them to a battery, which he had earlier invented. This work was carried forward by the English physicist Joseph Swan (1860) and the American scientist Charles Brush (1877).
In 1878 Edison began his work of trying out different filaments which could glow for a longer period without burning out, finally succeeding with a carbonized cotton filament. He later improved it by using a bamboo filament in an evacuated bulb which glowed for 1200 hours; later in 1910 William Coolidge came up with the idea of using a tungsten filament.
Guest
answered 8 months ago
Guest
answered 7 months ago
Guest
answered 7 months ago
Guest
answered 7 months ago
Guest
answered 7 months ago
Guest
answered 6 months ago
Guest
answered 6 months ago
Guest
answered 6 months ago
Guest
answered 6 months ago
Guest
answered 6 months ago
Guest
answered 5 months ago
Guest
answered 4 months ago
Guest
answered 3 months ago
Guest
answered 3 months ago
Guest
answered 2 months ago
Guest
answered 8 months ago
Guest
answered 8 months ago
Guest
answered 7 months ago
Guest
answered 7 months ago
- Who Are The Philippine Inventors?
- What Year Did Banzon Invent?
- How Does An Hourglass Work?
- Faith In ________________ In The Twentieth Century Could Lead The Casual Observer To Conclude Little In Nature Is Beyond The Ability Of People To Manipulate?
- What Did Dr.Martin Cooper Invent?
- Who Was The First Person To Make A Microscope?
- What Was The Impact Of The X-ray Machine?
- Who Invented Penicillin?
- Where Did The Xylophone Come From?
- Who Invented Penciling?
- Who Invented The Whiteboard Marker?
- Who Invented The First Car Machine?
- Who Is The Reaper?
- Which Invention Completed 40years Of Existence In 2009?
- Where Was The First Pencil Made?
- What Date Was Popcorn Invented?
- How Much Time For To Made The Phone Invention?
- Why Did Thomas Edison Take The Decision To Invest Light?
- What Are The Victorian Trains Called?
- How To Invent Something?
- What Are Some Inventors Names?
- What Are The Differences Between Old Airplanes And New Airplanes?
- How Does The Invention Of Airplane Help People?
- What Is The Working Condition Of A Bunsen Burner?
- Did Dr.martin Cooper Invent The Mobile Phoneit On His Own?
- Why Was The Light Bulb Invented?
- Where Was The Light Bulb Invented?
- Who Invented The Light Bulb?
- In What State Was The Light Bulb Invented?
- Who Invented The Electric Light Bulb?
- What Year Was The Light Bulb Invented?
- Who Invented Electricity And The Light Bulb And When?
- Who Is The First Scientist Who Invented The First Light Bulb?
- Which Century Was The Light Bulb Invented?

New Comment - Comments are editable for 5 min.