The document presents a school research project by Mohamed Arif Farhan on inventor Thomas Alva Edison, detailing his life, major inventions such as the electric light bulb and phonograph, and his impact on technology. It discusses both the merits, like music accessibility and safety improvements, and demerits, such as excessive music consumption and electricity usage. The conclusion reflects on how Edison's inventions are becoming less recognized despite their historical significance.

1. INVENTORS
DONE BY : MOHAMED ARIF FARHAN
GRADE: 5D ( I )
SUBJECT TEACHER: LATHA MA’AM
SUBMISSION DATE : MAY 26TH
RESEARCH ACTIVITY 2

2. INDEX
1. INTRODUCTION TO INVENTERS
2. WHO IS THOMAS ALVA EDISON
3. MERITS AND DEMERITS OF EDISON’S INVENTION
4. CONCLUSION
5. BIBLIOGRAPHY

3. INTRODUCTION TO INVENTORS
A person who invented a particular process or
device or who invents things as an occupation is
called an Inventor

4. THOMAS ALVA EDISON ( 1847– 1931 )
Inventor Thomas Edison created such great
innovations as the electric light bulb and the
phonograph. A savvy businessman, he held
more than a 1,000 patents for his inventions.

5. MAIN LIFE
Born on February 11, 1847, in Milan, Ohio, Thomas Edison rose
from humble beginnings to work as an inventor of major
technology. Setting up a lab in Menlo Park, some of the products
he developed included the telegraph, phonograph, electric light
bulb, alkaline storage batteries and Kinetograph (a camera for
motion pictures). He died on October 18, 1931, in West Orange,
New Jersey.

6. YOUNGER LIFE
Inventor Thomas Alva Edison was born on February 11, 1847, in Milan,
Ohio. He was the last of the seven children of Samuel and Nancy
Edison. Thomas's father was an exiled political activist from Canada.
His mother, an accomplished school teacher, was a major influence in
Thomas’ early life. An early bout with scarlet fever as well as ear
infections left him with hearing difficulties in both ears, a malady that
would eventually leave him nearly deaf as an adult. Edison would later
recount as an adult, with variations on the story, that he lost his
hearing due to a train incident where his ears were injured. But others
have tended to discount this as the sole cause of his hearing loss.

7. In 1854, the family moved to Port Huron, Michigan, where Edison attended public
school for a total of 12 weeks. A hyperactive child, prone to distraction, he was
deemed "difficult" by his teacher. His mother quickly pulled him from school and
taught him at home. At age 11, he showed a voracious appetite for knowledge,
reading books on a wide range of subjects. In this wide-open curriculum Edison
developed a process for self-education and learning independently that would serve
him throughout his life.

9. MERITS AND DEMERITS OF EDISON’S
INVENTIONS
MERITS
• Phonograph : People can
listen to music
• Light bulbs : Could be
replaced with fire lamps
which often burned
DEMERITS
• Phonograph : People listen to
too much of music
• Light bulbs : Uses electricity
and people don’t switch it off

10. CONCLUSION
Many of the inventions Thomas Alva Edison invented are being
developed into more efficiently working machines and his
inventions are being forgotten by the world who used to respect
him for his inventions.

11. BIBLIOGRAPHY
• http://www.biography.com/people/thomas-edison-9284349