Radio
The development of the radio began in the _____.
1830's or 1800's
Who is the scientist who created an electronic scanning system in 1922?
Philo Farnsworth
What does a communications satellite do?
Receives radio, television and other signals in space relays them back to Earth
What scientist is given credit for the invention of the radio?
Nikola Tesla
Television plays a major role in how people learn about government and select their ________.
leaders
Who is credited with inventing communications satellites?
Arthur C. Clarke
Guglielmo Marconi sent radio signals more than a ______.
mile
Cable television signals are sent to homes through an ___________ cable.
underground
In what year did Clarke write an article, describing a satellite in orbit that could relay information from the sky?
1945
Where was Nikola Tesla born?
Austria Hungary
Television works by changing _______ and ________ into electronic signals.
pictures, sounds
Look at the picture on page 314. Where is the Microwave signal being sent to?
Microwave tower