Telegraph cables- in use since l858 Cyrus Field the principal engineer involved.
In the past communicating over long distances was much more difficult than it is now. People used to have to send letters, or telegrams, or pay to make long distance phone calls.
They Communicate by sound
the 1800's was the time when people really started working for their benefits, and of course they had trade between each other. So, the best way to communicate between each other is through letters, that was not so developed but at least they could know what was occurring.
It allows the user to see almost in 360 degress and over long distances, see through solid objects, see the chakra network and the chakra flow in a person.
Essentially nothing. Gravity is a very weak force, which only becomes measurable with large masses and over large distances. The other forces such as the "Strong Nuclear Force" are more energetic, but over only atomic distances. The "Weak Nuclear Force" and the "electromagnetic force" (which have been theoretically "unified" as the "electro-weak force" are weaker than the Strong Nuclear Force, but still far stronger than gravity - but electromagnetism is also effective only over fairly limited distances. Even VERY strong magnetic fields have very tiny effects over distances of hundreds or thousands of miles. Gravity is effective over interstellar, even intergalactic distances, but it plays essentially no role at all at atomic distances.
The camel is an animal that could carry heavy loads over long distances and required little water while doing so.
Both the modern forms of communication and the traditional forms of communication helps people to communicate with othersover a wide area. one can be able to communicate to the other person who lives over distance well.
so people could communicate over long distances
the radio was needed for communications (mostly over long distances, while over time people used it for entertainment
People could communicate quickly over long distances.
People could communicate quickly over long distances.
People could communicate quickly over long distances.
People could communicate quickly over long distances.
people could communicate more quickly over long distances.
People could communicate over long distances faster.
aids
In order to communicate with people over great distances and it was for Cheap Entertainment.
The earliest advance in technology that enabled communication over long distances was the telegraph. Then there was the telephone later on.
The elephants can bellow, roar or make a trumpeting noise.