Multiple choice general knowledge

What type of system did Paul Nipkow, John Baird, and Charles Jenkins all invent?

  1. Telephone

  2. Early Warning

  3. Electricity

  4. Television
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Paul Nipkow invented the scanning disc (1884), John Baird demonstrated mechanical television (1926), and Charles Jenkins built early television systems (1920s). All were pioneers in television technology development. The telephone was Graham Bell's invention, not television.

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