https://padlet.com/sp3253/c907uhzhxn5b en-us 2019-03-12 19:37:13 UTC 2019-03-18 19:58:32 UTC hello@padlet.com sp3253 https://padlet.com/sp3253/c907uhzhxn5b/wish/340611782 2019-03-12 19:49:30 UTC https://padlet.com/sp3253/c907uhzhxn5b/wish/340611782 sp3253 https://padlet.com/sp3253/c907uhzhxn5b/wish/340614158 Morse Code is a form of communication made by Samuel Morse and Alfred Vail. Each letter of the alphabet is made up of combinations of dots and dashes.  Morse is the earliest type of digital communication.]]> 2019-03-12 19:55:28 UTC https://padlet.com/sp3253/c907uhzhxn5b/wish/340614158 sp3253 https://padlet.com/sp3253/c907uhzhxn5b/wish/340617767 2019-03-12 20:05:32 UTC https://padlet.com/sp3253/c907uhzhxn5b/wish/340617767 sp3253 https://padlet.com/sp3253/c907uhzhxn5b/wish/342592302 By the end of the 19th century, new technologies began to emerge, many of them based on the same principles as the first developed for the telegraph system. In time, these new technologies would overshadow the telegraph, which would fall out of regular widespread usage. Although the telegraph has since been replaced by the even more convenient telephone, its invention stands as a turning point in world history.]]> 2019-03-18 19:45:42 UTC https://padlet.com/sp3253/c907uhzhxn5b/wish/342592302 sp3253 https://padlet.com/sp3253/c907uhzhxn5b/wish/342592800
Morse code is usually transmitted by information carrying medium such as electric current, radio waves, visible light or sound waves.  The current or wave is present during time period of the dot or dash and absent during the time between dots and dashes.  “Morse code can be memorized, and Morse code signalling in a form perceptible to the human senses, such as sound waves or visible light, can be directly interpreted by persons trained in the skill.”

]]> 2019-03-18 19:47:05 UTC https://padlet.com/sp3253/c907uhzhxn5b/wish/342592800 sp3253 https://padlet.com/sp3253/c907uhzhxn5b/wish/342593971 International Morse Code is more simpler and more precise. For example, the original Morse Code used patterns of dots and spaces to represent a few of the letters, where the International Morse Code uses combinations of dots and short dashes for all letters. So, the International Morse Code uses dashes of constant length rather than the variable lengths used in the original Morse Code.]]> 2019-03-18 19:50:10 UTC https://padlet.com/sp3253/c907uhzhxn5b/wish/342593971 sp3253 https://padlet.com/sp3253/c907uhzhxn5b/wish/342594702 2019-03-18 19:51:56 UTC https://padlet.com/sp3253/c907uhzhxn5b/wish/342594702 sp3253 https://padlet.com/sp3253/c907uhzhxn5b/wish/342595057 2019-03-18 19:52:58 UTC https://padlet.com/sp3253/c907uhzhxn5b/wish/342595057