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chemistry
Hermann Staudinger and the Macromolecules

Hermann Staudinger and the Macromolecules

Harald Sack
On March 23, 1881, German organic chemist Hermann Staudinger was born. Staudinger demonstrated the existence of macromolecules, which he characterized as polymers. For this work he received the 1953 Nobel Prize in Chemistry. He is also known for his discovery of ketenes and of the Staudinger reaction. “The most fundamental difference between compounds of low molecular weight and macromolecular compounds resides in the fact that the latter may exhibit properties that cannot…
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philosophy
Michael Polanyi’s Criticism on Positivism

Michael Polanyi’s Criticism on Positivism

Harald Sack
On March 11, 1891, Hungarian-British polymath Michael Polanyi was born. Polanyi made important theoretical contributions to physical chemistry, economics, and philosophy. He argued that positivism supplies a false account of knowing, which if taken seriously undermines humanity’s highest achievements. “When order is achieved among human beings by allowing them to interact with each other on their own initiative — subject only to the laws which uniformly apply to all of them —…
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engineering
Karl Drais and the Mechanical Horse

Karl Drais and the Mechanical Horse

Tabea Tietz
On April 29, 1785, German inventor Karl Drais was born, who invented the Laufmaschine (“running machine”), also later called the velocipede or draisine, also nicknamed the dandy horse. Becoming an Inventor Karl Drais’ father was the Baden court and government councillor Karl Wilhelm Ludwig Friedrich von Drais von Sauerbronn, his mother Margarete Ernestine von Kaltenthal. Margrave Carl Friedrich von Baden took over his sponsorship. In 1790 the von Drais family moved from Sauerbronn to…
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physics
Heinrich Hertz and the Successful Transmission of Electromagnetic Waves

Heinrich Hertz and the Successful Transmission of Electromagnetic Waves

Tabea Tietz
On November 13, 1886, German physicist Heinrich Hertz succeeded to transmit electromagnetic waves from a sender to a receiver in Karlsruhe. Hertz conclusively proved the existence of the electromagnetic waves theorized by James Clerk Maxwell’s electromagnetic theory of light.[4] The unit of frequency – cycle per second – was named the “hertz” in his honor. “The rigour of science requires that we distinguish well the undraped figure of Nature itself from the gay-coloured…
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archeology
Ramesses II – King of Kings am I

Ramesses II – King of Kings am I

Harald Sack
Ramesses II was born 1303 BC, third pharaoh of the Nineteenth Dynasty of Egypt. Ramesses II often is regarded as the greatest, most celebrated, and most powerful pharaoh of the Egyptian Empire. His successors often referred to him as “the Great ancestor”. The reason, why we include this ancient Egytian ruler in SciHi Blog is not only his historical relevance. Recently we have been invited to join the Ramesses II exhibition at…
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