すみません(><)急ぎです!添削してもらえると助かります! Hello my name is ~~~ and today I’d like to talk about Thomas Alva Edison and his invention, the incandescent filament lamp. In 1878, Edison began working on a system of electrical illumination, something he hoped could compete with gas and oil based lighting. He began by tackling the problem of creating a long-lasting incandescent lamp, something that would be needed for indoor use. His serious incandescent light bulb research began in 1878, filing his first patent later that year…”Improvement In Electric Lights” in October 1878. His experiments involved the fabrication and testing of many different metal filaments, including platinum. You have some background information on incandescent filament lamp. Now lt’s look at the focus of Edison’s research. Research Question 　How can I light the lamp for a long time? Methods and Data 　In 1879, Edison conducted an experiment. 1.Edison returned to a carbon filament. 2. He successfully tested a filament that burned for 13.5 hours. 3.He continued to improve this design and used a carbon filament or strip coiled and connected to platina contact wires 4.This was the first commercially practical incandescent light. Conclusions and Future Research 　The incandescent filament lamp is perhaps the most celebrity invention ever given to Edison. Even people who are disadvantaged were able to light the lamp by mass production of filament lamp.