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1. Thomas Edison is often credited with inventing the light bulb in 1879.

   Thomas Edison is often credited with inventing the light bulb in 1879.

2. However, many scientists before him had worked on similar ideas.

   However, many scientists before him had researched similar ideas.

3. Edison's success was different because he created a practical bulb that lasted a long time.

   Edison's success was different in that he created a long-lasting practical light bulb.

4. He tested thousands of materials to find the perfect filament.

   He tested thousands of materials to find the perfect filament.

5. The light bulb changed the world by allowing people to work and live at night.

   The light bulb changed the world by allowing people to work and live at night.

6. It became one of the most important inventions of the industrial age.

   It became one of the most important inventions of the Industrial Age.

主な語彙

1. credited

   認められる、功績を認められる

2. filament

   フィラメント、細い線

3. practical

   実用的な

4. industrial age

   産業時代

5. invention

   発明