From: "Mort" <
[email protected]>
David H. Lipman wrote:
Actually, it is older than one thinks...
The facsimile machine as we know it is just an updated, digital,
version. During the Napoleanic wars the French used a new technology
called the Pantelegraph which used telegraph wires to transmit an
analog
facsimile and was created by the Italian Giovanni Caselli.
Hi,
I wonder if you would be kind enough to explain the presence of
telegraph wires in Europe during the Napoleonic Wars, which are dated
at 1803-1815. There was a primitive multiwire telegraph system in
Germany since 1832, and Samuel F.B. Morse invented the first single
wire telegraph system (plus Morse code) in 1837. That leaves a mystery
as to how there were telegraph wires before the electrical telegraph
was invented.
I will appreciate your reply.
Regards,
Mort Linder
First lest me state I am NO HISTORY EXPERT so what I posted was from
vague memory of information.
http://en.wikipedia.org/wiki/Pantelegraph
By 1856, he had made sufficient progress for Leopold II, Grand Duke of
Tuscany to take an interest in his work, and the following year he
travelled to Paris where he was assisted by the engineer Paul Gustave
Froment, to whom he had been recommended by Léon Foucault, to construct
the first Pantelegraph. In 1858, Caselli's improved version was
demonstrated by French physicist Alexandre-Edmond Becquerel at the
French Academy of Sciences in Paris.[1]
On 10 May 1860 Napoleon III visited Froment's workshop to observe a
demonstration of the device, and was so enthused by the device that he
secured access for Caselli to the telegraph lines he needed to further
his work, from Froment's workshops to the Paris Observatory. In November
1860 a telegraph line between Paris and Amiens was allotted to Caselli
which enabled a true long-distance experiment, which was a complete
success, with the signature of the composer Gioacchino Rossini as the
image sent and received, over a distance of 140 km (87 mi).[1]