NLMK Group
NLMK Group
NLMK Group
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36 Panorama GREAT INVENTORS<br />
Locomotive designed<br />
in collaboration with<br />
Siemens & Halske.<br />
In 1903 it reached a<br />
speed of more than 210<br />
kilometers per hour<br />
railroads became another leading<br />
line of business for Siemens &<br />
Halske.<br />
In addition to designing useful<br />
devices Werner Siemens also<br />
dedicated his time to theoretical<br />
science. He had published<br />
numerous articles covering various<br />
aspects of electrical engineering.<br />
He came up with one of the<br />
definitions of electrical resistance,<br />
and for a long time a siemens was<br />
used as the measure for resistance,<br />
and it was replaced by the ohm at a<br />
later time. Today a siemens is used<br />
to measure electric conductivity,<br />
which is the opposite of resistance.<br />
In 1873 the Berlin Academy of<br />
Sciences accepted Werner Siemens<br />
as full member in recognition of his<br />
contribution to science. Allegedly,<br />
this was the only title that Siemens<br />
was proud of.<br />
An advertisement<br />
for Siemens household<br />
appliances. 1920s<br />
The Tartar Galvanometer<br />
When they were implementing their first projects<br />
in Russia the Siemenses were faced with the<br />
challenge of frequent equipment failures, caused<br />
by the differences in climate between Germany and<br />
Russia. To address this Werner Siemens invented a<br />
special instrument, which automatically registered<br />
any disruptions along the line. The inventor referred<br />
to this device as ‘the Tartar galvanometer’.