Grade 9 Unit 4 Topic 1 Section B

Michael: Look, a light bulb!
Jane: Yeah. It is widely used by people everywhere. Do you know when it was invented?
Michael: It was invented in 1879.
Jane: Who invented it?
Michael: Thomas Edison. It’s said that he invented more than two thousand things during his
Jane: What about the radio?
Michael: The radio was invented by Guglielmo Marconi in 1895. Jane, let’s go this way. Look! An airplane, but it’s different from today’s.
Jane: Yes. It was invented by Wilbur and Orville Wright in 1903.

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