In
1833 Gauss together built the first telegraph lines, about one km long
between
the observatory and
university physics laboratory (for private
use) in the city of Gottiga consists of a button, a battery and a
receiver unit galvanometro the Physical whose fame is linked to the
work done with Gauss on terrestrial magnetism, to
him we owe the electromagnetic measurement system.
In
his honour was named the unit of
magnetic flux in the international metric system
Source: The
one hundred years that followed the industrial revolution