Thomas Edison

Definition

Thomas Edison was an American inventor and businessman who is best known for his contributions to the development of electrical power generation and the invention of the electric light bulb. His work laid the foundation for modern electric power systems, fundamentally changing how people live and work by making electricity accessible on a large scale.

5 Must Know Facts For Your Next Test

1. Edison held over 1,000 patents for his inventions, showcasing his prolific nature as an inventor and innovator.
2. He established the first industrial research laboratory in Menlo Park, New Jersey, which became a model for modern research and development practices.
3. Edison faced stiff competition from other inventors, particularly Nikola Tesla, especially concerning the debate between AC (alternating current) and DC (direct current) electricity.
4. His invention of the phonograph in 1877 revolutionized sound recording and playback, marking one of the earliest devices capable of capturing audio.
5. Edison's company eventually evolved into General Electric, one of the largest and most diversified industrial corporations in the world today.

Review Questions

• How did Thomas Edison's invention of the electric light bulb impact society?
  • Edison's invention of the electric light bulb revolutionized society by making artificial lighting accessible and practical for everyday use. This innovation extended productive hours beyond daylight, transforming industries and urban life. It led to a significant change in how homes and workplaces were illuminated, paving the way for greater efficiency and safety.
• Discuss the implications of Edison's promotion of direct current (DC) electricity over alternating current (AC) during his time.
  • Edison's promotion of direct current (DC) electricity had significant implications for electrical power distribution. While DC was initially easier to use for small-scale applications, its limitations in long-distance transmission led to inefficiencies. This sparked the so-called 'War of Currents' between Edison and proponents of alternating current (AC), ultimately influencing the standards for electrical systems that we rely on today.
• Evaluate Thomas Edison's legacy in the context of modern electrical systems and technology.
  • Edison's legacy is profound in shaping modern electrical systems and technology. His pioneering work in electric power generation and lighting systems laid the groundwork for contemporary electrical infrastructure. The principles he established regarding industrial research and development continue to influence innovation today, making him a central figure in the history of technology and entrepreneurship.

Related terms

Electricity: A form of energy resulting from the existence of charged particles, which can be harnessed for various applications, including lighting and power generation.

Incandescent Bulb: A type of electric light that works by heating a metal filament until it glows, developed by Edison as one of his most famous inventions.

Direct Current (DC): An electric current flowing in one direction only, which was promoted by Edison as a method for electrical power distribution.