The objective of descriptive and explanatory research is provide  information why certain things are done in a specific way. The  other purpose is to provide information. Edit. Share to: 1  Catch Recruiters' Eyes with Focused Job Objectives A key component of the resume is the objective.
EnchantedLearning.com The Invention of the Light Bulb: Davy, Swan and Edison. Much later, in 1860, the English physicist Sir Joseph Wilson Swan (1828-1914) was determined to devise a practical, long-lasting electric light. He found that a carbon paper filament worked well, but burned up quickly.ewis Howard Latimer (1848-1928) improved the bulb by inventing a carbon filament (patented in 1881); Latimer was a member of Edison's research team, which was called Edison's Pioneers.. In 1882, Latimer developed and patented a method of manufacturing his carbon filaments.
Incandescent Bulbs Light the Way. Long before Thomas Edison patented -- first in 1879 and then a year later in 1880 -- and began commercializing his incandescent light bulb, British inventors were demonstrating that electric light was possible with the arc lamp. 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. 2  Learn more about the history of the incandescent light bulb. 3  Explore the history of fluorescent lights, from the Geissler tube to CFLs. 4  Read about the advancements in LED lights.