https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c en-us 2022-10-13 23:22:56 UTC 2022-10-22 15:08:35 UTC hello@padlet.com https://padlet.net/icons/png/262e.png santiagoalvarez25 https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339511460 The telegraph was created in 1838 by Samuel Morse , it was the mos popular form to communicate at 1800's and 1900's.]]> 2022-10-13 23:24:25 UTC https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339511460 santiagoalvarez25 https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339518151 During World War II, the United Kingdom used about 250,000 Carrier pigeons for many purposes. Is possible where a message is written on thin light paper and rolled into a small tube attached to the bird's leg.]]> 2022-10-13 23:33:46 UTC https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339518151 santiagoalvarez25 https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339599365 The ancient china , native americans use it , in ancient china people use Smoke Signals because something is wrong or they are in danger.]]> 2022-10-14 01:00:37 UTC https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339599365 santiagoalvarez25 https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339608303 The horses transport the messages from station to station.
Every hundred or so miles the rider would be replaced.]]> 2022-10-14 01:08:15 UTC https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339608303 santiagoalvarez25 https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339612421 The Semaphore Flags used to send optical signals. It is also
known as optical telegraph.
include signal towers with special installations on them or hand-held flags. 

]]> 2022-10-14 01:11:36 UTC https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339612421 santiagoalvarez25 https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339631596  The telephone has 6 creators
Antonio Meucci  in 1849, and Frenchman Charles Bourseul  in 1854, Alexander
Graham Bell won the first U.S. patent for the device in 1876.
A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too
far apart to be easily heard directly.]]> 2022-10-14 01:26:05 UTC https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339631596 santiagoalvarez25 https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339768367 The Radio has 3 authors *Nikola Tesla* , *William Dubilier*, *Reginald Fessenden* .
The radio use de satelitlle conection to listeing to news ,music , entertain programs.

]]> 2022-10-14 03:26:53 UTC https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339768367 santiagoalvarez25 https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339774060 Ray Tomlinson is the author of the Email. 
The advantajes of the Email are:

• Email is a free tool.
• Email is quick.
• Email is simple.
• Email allows for easy referencing.
• Email is accessible from anywhere – as long as you have an internet connection.

]]> 2022-10-14 03:33:04 UTC https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339774060 santiagoalvarez25 https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339784020 The SmartPhone is the most popular mean of communication in the 21st century .
Steve Jobs may be the father of the modern smartphone but the father of the first device that can lay claim to the title of smartphone was Frank Canova.]]> 2022-10-14 03:44:00 UTC https://padlet.com/santiagoalvarez25/pfhthtachtl2l70c/wish/2339784020