A telegram, a telephone, a computer, a semaphore, a telegraph.
The instrument you are referring to is called a heliograph. It has a movable mirror that reflects sunlight to send messages using Morse code over long distances.
A telegraph is an instrument that transmits messages over long distances by sending electrical signals through wires. This technology revolutionized communication in the 19th century by enabling people to send messages more quickly than traditional means like mail.
The Axon.
Marcrni
People used the Morse Code to send messages from far distances Morse code was used by how long you hold it down.
By a satellite in outer space
alexander graham bell
the telegraph.
The right way
Telegraph
Am not telling you. Why should i tell you if u cant do it LOSER
Kilometers