1845 - 1904
Friedrich von Hefner-Alteneck German Engineer
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Friedrich von Hefner-Alteneck is a member of the following lists: Members of the Royal Swedish Academy of Sciences, 1845 births and 1904 deaths.
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Details
| First Name |
Friedrich
|
| Middle Name |
Von
|
| Last Name |
Hefner-Alteneck
|
| Birthday |
27th April, 1845
|
| Died |
6th January, 1904
|
| Zodiac Sign |
Taurus
|
| Nationality |
German
|
| Occupation |
Engineer
|
Friedrich Heinrich Philipp Franz von Hefner-Alteneck (April 27, 1845 in Aschaffenburg – January 6, 1904 in Biesdorf near Berlin) was a German electrical engineer and one of the closest aides of Werner von Siemens. He is largely remembered for the invention of the Hefner lamp, which provided the measure of luminous intensity used in Germany, Austria and Scandinavia from 1890 to 1942. The measure was called the Hefnerkerze (HK). The Hefnerkerze was superseded in the 1940s by the modern SI unit, the candela.
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