Werner von Siemens, German electrical engineer and inventor, c 1880.

GERMANY - JUNE 28: Engraving by A Delzers of Ernst Werner von Siemens (1816-1892), the German electrical engineer who invented an electroplating process (1842) and developed an electric dynamo (1866). Siemen�s use of gutta-percha (a fibrous gum) to insulate cables in 1847 made the first underground and submarine telegraph cables possible. He was responsible for both the first telegraph line (1848) and the first electric railway in Germany, and together with his brother Sir William Siemens (1823-1883), developed a widely used process of steelmaking. In 1888 Siemens was made a member of the nobility (with the addition of �von� to his name). The standard scientific unit (SI) of electrical conductance, the Siemens (S), was named after him. Published by the International Telecommunication Union. (Photo by SSPL/Getty Images)
GERMANY - JUNE 28: Engraving by A Delzers of Ernst Werner von Siemens (1816-1892), the German electrical engineer who invented an electroplating process (1842) and developed an electric dynamo (1866). Siemen�s use of gutta-percha (a fibrous gum) to insulate cables in 1847 made the first underground and submarine telegraph cables possible. He was responsible for both the first telegraph line (1848) and the first electric railway in Germany, and together with his brother Sir William Siemens (1823-1883), developed a widely used process of steelmaking. In 1888 Siemens was made a member of the nobility (with the addition of �von� to his name). The standard scientific unit (SI) of electrical conductance, the Siemens (S), was named after him. Published by the International Telecommunication Union. (Photo by SSPL/Getty Images)
Werner von Siemens, German electrical engineer and inventor, c 1880.
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來源:
Science & Society Picture Library / Contributor
編輯性內容編號：
90771386
圖像集:
SSPL
建立日期：
1880年01月01日
上傳日期：
授權類型：
權利管理
發佈資訊:
無許可授權 更多資料
來源：
SSPL
物件名稱：
10400303
最大檔案大小：
2572 x 3504 像素 (21.78 x 29.67 cm) - 300 dpi - 4 MB