Notes 19

-5 comments
1-Technology has advanced a lot.
2-There are many different types of ways to transmit information.
3-Wireless is more reliable than landlines.
4-The discovery of wireless changed the world.
5-
-4 questions
1-How did Marconi transmit info over radio waves?
2-When was Morse code discovered?
3-What does a modulator do?
4-How many different kinds of energy waves are there?
-3 words
1-Modulator-A device that modifies carrier waves to transmit information.
2-Landlines-A phone line that uses wires.
3-Electromagnetic Spectrum- The entire range wavelengths and frequencies of electromagnetic radiation, such as visible light, the radio frequency, X- rays, in frared, and so on.
-1 summary
1-This chapter talked about when the beginnings of wireless were discovered and Marconi sending info threw morse code.