Television & Streaming | Science Trek

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Keywords

television analog digital radio Science Trek streaming dots pixels brain perception movies Philo T. Farnsworth vacuum tube camera radio kinescope analog electronic pulses digital broadcast electromagnetic spectrum light waves prism audio transmitter cable internet LED streaming streaming device cable satellite Alexander Graham Bell telephone telephone lines networks airwaves engineer cellular phone cellular app data pipe buffering downloading compression video stream data video file Franklin Roosevelt 1939 World’s Fair black and white television color television PBS Apollo 11 Neil Armstrong video on demand television sets over-the-air signal electromagnetic radiation energy electromagnetic spectrum radio waves microwaves infrared waves visible light ultraviolet waves xrays gamma rays interfere interference antenna Emergency Broadcast System

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STEAM

Grade Levels

Grade 3 Grade 4 Grade 5

Audience

Classroom Teacher / Educator

Related Resources

Television & Streaming | Science Trek

Americans average more than 33 hours a week in front of a television or other streaming devices. That’s almost as much time as we spend sleeping, working or going to school. But exactly how does that picture get to your screen? On this month’s Science Trek, host Joan Cartan-Hansen and her guests, Rich Van Genderen and Craig Koster, will answer students’ questions about the science behind television.

Publisher

PBS Learning Media