:::Reading from Code:::

:::Reading from CODE:::

What
were the specific technical issues (referring to wire and resistance)
that prevented the early telegraph to be wired directly coast to coast?
What solution finally worked? Illustrate how that works, allowing coast
to coast telegraph communication.

We
know that the thicker the wire the more conductivity it posses.
However, as the length of a wire increases so does the resistance. If
follows then, that a long enough wire to go from coast to coast would
have had too much resistance to be able to send a current to make the
mechanism work on the other side.
The first solution was to divide this long wire into segments and have
a person in between the segments receiving the message and sending it
right away to the next segment in line. Eventually the process was
simplify and automated by the use of electrical relays. Relays are
switches that get turn on or off by a current. In order to understand
how relays were integrated in the telegram process we must frst
describe how the telegram worked up to that point. When the handle was
tapped in one side, current was sent through a wire. On the other side,
this same wire was rapped around a piece of iron metal. When current
runned through the coil. The coiled was electromagnetized and it pulled
down on one side of a bar. As one side when down the other moved up and
produced a long or short sound. A relay was connected to the incoming
wire and everytime there was a tap on the other side, current would be
send to the relay making the bar act as switch. This switch was
connected to a battery and an outgoing wire. The current was amplify by this process and sent to the next segement of the telegram chain.