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Questions and Answers
Who invented the first telephone?
Who invented the first telephone?
- Samuel FB Morse
- Heinrich Hertz
- Alexander Bain
- Alexander Graham Bell (correct)
What was the year in which the first use of two-way radio (walkie-talkies) happened in the United States?
What was the year in which the first use of two-way radio (walkie-talkies) happened in the United States?
- 1961
- 1933
- 1864
- 1906 (correct)
Who launched the world’s first satellite (Sputnik 1)?
Who launched the world’s first satellite (Sputnik 1)?
- Vladimir Zworykin
- Edwin H. Armstrong
- Lee de Forest
- Russia (correct)
What was the year in which the cellular telephone networks were introduced in the US?
What was the year in which the cellular telephone networks were introduced in the US?
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What year did the United States first use fiber-optic cable?
What year did the United States first use fiber-optic cable?
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Who invented and demonstrated the television?
Who invented and demonstrated the television?
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In which year did Russia launch the world’s first satellite (Sputnik 1)?
In which year did Russia launch the world’s first satellite (Sputnik 1)?
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Who invented and patented the telegraph?
Who invented and patented the telegraph?
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When did the invention of transistor by Bell laboratories occur?
When did the invention of transistor by Bell laboratories occur?
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Who discovered radio waves?
Who discovered radio waves?
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When did the first use of two-way radio (walkie-talkies) happen in the United States?
When did the first use of two-way radio (walkie-talkies) happen in the United States?
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