The invention of the light bulb and how it affected the world

1.

The invention of the light bulb
and how it affected the world
Completed by: Andrey
Vyatkin, student of st-241

2.

History of the invention
• Thomas Edison is credited with inventing the first practical incandescent light
bulb in 1879. However, it is impossible to single out one inventor of the light
bulb — many scientists from different countries participated in its creation.
• The prototype lamp was created by Russian engineer Alexander Lodygin. He
placed a carbon rod in a vacuum-sealed glass bulb, which increased the
service life of the device.

3.

Impact on the economy
• Development of the electrical industry. The production of
light bulbs and the installation of electrical systems in
homes and businesses have created new jobs.
• Cost reduction. Edison put the production of lamps on
stream, which lowered their price.
• Stimulating competition. By 1896, there were already
several companies that produced incandescent lamps,
which led to lower prices.

4.

Impact on daily life
• Lighting of houses. Incandescent lamps gradually replaced candles and
kerosene lamps, which were sources of fires and soot.
• The opportunity to work and relax in the dark. People got the opportunity to
do business and relax even in the light of electric light.
• Theaters and concert halls lit by electric lamps have become safer and more
convenient. Artists and photographers have gained new opportunities for
creativity thanks to artificial lighting.

5.

Thank you for your attention!