Irving Langmuir

High school (ages 12+)
Science & Technology

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Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/irving-langmuir

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. When was Irving Langmuir born?January 31, 1881
2. When did Irving Langmuir die?August 16, 1957 (age 76)
3. Where was Irving Langmuir born?Brooklyn, New York, USA
4. Who was Irving Langmuir and why is he called the Lightbulb Wizard?Irving Langmuir was a brilliant scientist who worked at General Electric. He invented a way to make lightbulbs brighter and longer‑lasting, earning him the nickname "Lightbulb Wizard."
5. How did Langmuir make lightbulbs last longer?He filled the bulbs with a gas like nitrogen or argon instead of a vacuum. The gas keeps the tungsten filament from evaporating, so the bulb stays bright for a long time.

Surface Chemistry: The scientific discipline studying chemical phenomena occurring at the interfaces of phases, such as solid-liquid or solid-gas.
Gas-Filled Incandescent Lamp: An electric light bulb containing an inert gas to reduce filament evaporation, increasing brightness and lifespan.
Concentric Theory of Atomic Structure: Langmuir's model positing electrons arranged in discrete, concentric shells around the atomic nucleus, influencing bonding theories.
Monolayer: A single layer of atoms or molecules adsorbed onto a surface, a concept significantly advanced by Langmuir's research.