Morse Code Line Light?

Question

How do u make a morse code line with light?

Answer 1

Interrupt the light beam in a sequence that matches Morse code.

In radio, Morse code was originally called CW (continuous wave), just like a light beam that is turned on steady.  By interrupting the CW signal with a switch (or telegraph keyer) in a coded fashion, information can be transmitted over the radio, or light wave).

--.  ---  ---  -..      .-..  ..-  -.-.  -.-

--...  ...--

-..  .

...-  .  -....  .---  .  ..-.

Answer 2

Our Canadian friend Jeff is correct.  You can make a simple device by using a flashlight bulb, a battery, some wire and a telegraph key.  Have fun.

-..   .

-.-   --.   ----.   ...   ..-.