The document summarizes the history and development of the light bulb. It describes how the light bulb was not invented by a single inventor, but was instead the result of incremental improvements over time by many inventors since the 1830s. It then discusses Thomas Edison's role in creating the first long-lasting, practical incandescent light bulb in 1879. Finally, it notes how light bulbs have changed over time through new materials and technologies, and their widespread use in homes, offices, and energy-efficient alternatives.

1. INVENTION: THE LIGHT BULB
DANIEL AMAYA
JOHAN URBANO
ENGLISH INTERMEDIATE I

2. INTRODUCTION
 In the first part we will talk
about the history of the light
bulb,
 Then we will look the light
bulb created by Thomas Alva
and its history, at the parts of
this,
 we will make some
comparisons the light bulb
and how its changed over
time
 and finally we will talk about
that the light bulb had many
uses and some ideas about
it,

3. HISTORY
 More than 150 years ago, inventors began working
on a bright idea that would have a dramatic impact on
how we use energy in our homes and offices. This
invention changed the way we design buildings,
increased the length of the average workday and
jumpstarted new businesses. It also led to new
energy breakthroughs -- from power plants and
electric transmission lines to home appliances and
electric motors.
 Like all great inventions, the light bulb can’t be
credited to one inventor. It was a series of small
improvements on the ideas of previous inventors that
have led to the light bulbs we use in our homes today.
THE LIGHT BULB

4. HISTORY
 1835
 1855
 1874
 1879
 1880
 1882
 1904
 1913
 2009
THE LIGHT BULB

5. PARTS
The parts of the light bulb
are has:
 Support wires
 Inert gas
 Tungten Filament
 Bulb
 Glass Mount
 Electrical foot contact

6. COMPARISSONS
 Solar lighting
 Fire
 Fuel or gas lamps
 Lighters
 Candles
 Flourescent lamp
 LED
THE LIGHT BULB

7. CHANGES
 The change more
important about of light
bulbs is the prohibition
around of world for
lighting in favor of
energy-efficient lighting
alternatives, for this
the government in
some countries has
laws about it

8. ITS USE AT THE MOMENT
 2009 European Union 100W
 2010 European Union 75W
 2011 European Union 60W
 2012 European Union 25 - 40W
 20th century
(XIX)
THE LIGHT BULB

9. SOME IDEAS
 if we were good for save energy with lights
bulbs, would the better world,
 if we were recycle the old lights bulbs, would
help improve global warming,
 if we were turn off the lights that not use,
would save energy
 If we use energy saving lights , we would
help a better future

10. CONCLUSION
 The incandescent light bulb change the world
 One can’t talk about the history of the light bulb
without mentioning William Sawyer and Albon
Man. Other scientist.
 Discharge lamps became the basis of many
lighting technologies, including neon lights, low-
pressure sodium lamps and fluorescent lights
 One of the fastest developing lighting
technologies today is the light-emitting diode (or
LED).
THE LIGHT BULB