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In 1809, Humphry Davy connected a carbon filament to the two poles of a battery to generate light. Davy's invention didn't work as well as Edison's lightbulb, but the number of years that elapsed between the two inventions must be taken into account
Years later, Warren de la Rue, an English chemist, exchanged the carbon filament Davy had used for a platinum filament connected to two electrical poles in a glass body. La Rue's creation worked better than Davy's contraption, but it was expensive to produce, making commercialization impractical
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ਹਾਈਲਾਈਟਸ

From the Editor - Ruchika Rawan

From the Editor - Ruchika Rawan

The Inventions that have changed the world

The Inventions that have changed the world

‘The War of Currents’ - Thomas Alva Edison Vs Nikola Tesla

‘The War of Currents’
- Thomas Alva Edison Vs Nikola Tesla

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