1. The discovery of
electricity and
the invention of
the bulb

2. Tales de Mileto (624-543 A.C)

3. Thomas Alva Edison (1847-1931)

4. The bulb of Edison
Thomas Edison light bulb, but he was the first to
create a practical and long-lasting light bulb.

5. In their attempts to improve the life of the light bulb, Edison tested
more than 6,000 types of plant material, along with any other
strand which occurred to him, such as tungsten, the most
common component of :
the modern strands
Finally, treated with a
thread of carbonized
cotton, which burned
for 15 hours