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Werner von Siemens – Inventor and International Entrepreneur

Werner von Siemens – Inventor and International Entrepreneur

Harald Sack
On December 13, 1816, German inventor and industrialist Werner von Siemens was born. He was the pioneer of the electro industry and brought about a great technological advancement with many of his important discoveries. Moreover, he was co-inventor of an electroplating process and alone developed an electric dynamo. He laid the first telegraph line and built the first electric railway in Germany and, with his brother Sir William Siemens, developed a widely…
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communication
Dit dit dit da dit – The first Morse Telegram

Dit dit dit da dit – The first Morse Telegram

Harald Sack
On May 24th 1844 the first Morse telegram went over the line. Samuel Morse and his colleague Alfred Vail knew that the very first phrase to be sent with the new telecommunication medium was to be remembered. So what should they transmit? Morse came up with a quote from the bible, certainly well chosen for an historic occasion like this: “What God had wrought” sent by Morse in Washington to Alfred Vail at…
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physics
Charles Proteus Steinmetz and the Alternating Current

Charles Proteus Steinmetz and the Alternating Current

Tabea Tietz
On October 26, 1923, German-born American mathematician and electrical engineer Charles Proteus Steinmetz passed away. Steinmetz fostered the development of alternating current that made possible the expansion of the electric power industry in the United States, formulating mathematical theories for engineers. He made ground-breaking discoveries in the understanding of hysteresis that enabled engineers to design better electromagnetic apparatus equipment including especially electric motors for use in industry. “The scientist is contented if…
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physics
Oliver Heaviside changed the Face of Telecommunications

Oliver Heaviside changed the Face of Telecommunications

Tabea Tietz
On May 18, 1850, English self-taught electrical engineer, mathematician, and physicist Oliver Heaviside was born. Heaviside adapted complex numbers to the study of electrical circuits, invented mathematical techniques for the solution of differential equations, reformulated Maxwell’s field equations in terms of electric and magnetic forces and energy flux, and independently co-formulated vector analysis. “However absurd it may seem, I do in all seriousness hereby declare that I am animated mainly by philanthropic motives.…
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engineering
Harold Stephen Black and the Negative-Feedback Principle

Harold Stephen Black and the Negative-Feedback Principle

Harald Sack
On April 14, 1898, American electrical engineer Harold Stephen Black was born. Black discovered and developed the negative-feedback principle, in which amplification output is fed back into the input, thus producing nearly distortionless and steady amplification. His invention is considered the most important breakthrough of the twentieth century in the field of electronics, since it has a wide area of application. “The answer scrawled on a blank page in a daily newspaper, was…
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