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Justus von Liebig

medical science
Max von Pettenkofer – the Apostle of Good Water

Max von Pettenkofer – the Apostle of Good Water

Tabea Tietz
On December 3, 1818, Bavarian chemist and hygienist Max Joseph von Pettenkofer was born. In his early career worked on industrial chemical processes and analysis of urine and bile acids, but today he is remembered in connection with his work in practical hygiene, as an apostle of good water, fresh air and proper sewage disposal. He also developed standards for adequate ventilation in schools and hospitals. “From time to time we send our underwear to…
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chemistry
Charles-Adolphe Wurtz and the Atomic Theory

Charles-Adolphe Wurtz and the Atomic Theory

Harald Sack
On November 26, 1817, Alsatian French chemist and educator Charles-Adolphe Wurtz was born. Wurtz is best remembered for his decades-long advocacy for the atomic theory and for ideas about the structures of chemical compounds, against the skeptical opinions of chemists such as Marcellin Berthelot and Etienne Henri Sainte-Claire Deville. He is well known by organic chemists for the Wurtz reaction, to form carbon-carbon bonds by reacting alkyl halides with sodium, and for…
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geology
Vasily Dokuchaev and Foundations of Soil Science

Vasily Dokuchaev and Foundations of Soil Science

Tabea Tietz
On October 26, 1903, (Julian Calendar) Russian Geologist and Geographer Vasily Dokuchaev passed away. Dokuchaev is commonly regarded as the father of Soil science, the study of soils in its natural setting. He developed soil science in Russia, and was, perhaps the first person to make wide geographical investigations of different soil types. “The scientific basis of soil science as a natural science was established by the classical works of Dokuchaev. Previously, soil…
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chemistry
Christian Friedrich Schönbein – Ozone and Explosives

Christian Friedrich Schönbein – Ozone and Explosives

Tabea Tietz
On August 29, 1868, German-Swiss chemist Christian Friedrich Schönbein passed away. Schönbein is best known for inventing the fuel cell (1838) at the same time as William Robert Grove and his discoveries of guncotton and ozone, of which he also coined its name. Christian Friedrich Schönbein – Early Years Christian Friedrich Schönbein came from a Pietist family, his father was a dyer, postman and accountant. He was apprenticed to a chemical and pharmaceutical…
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chemistry
Ascanio Sobrero and the Power of Nitroglycerine

Ascanio Sobrero and the Power of Nitroglycerine

Harald Sack
On October 12, 1812, Italian chemist Ascanio Sobrero was born. During his experimental research he discovered the explosive compound nitroglycerine. Sobrero was horrified by the destructive potential of his discovery, and made no effort to develop that power himself. Possibly, the only name that pops up in your mind when you think of the explosive nitroglycerine is Alfred Nobel, the guy who also funded the eponymous prices for advancement in science as well…
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biology
Rudolf Leuckart and his Research in Parasitology

Rudolf Leuckart and his Research in Parasitology

Harald Sack
On October 7, 1822, German zoologist Karl Georg Friedrich Rudolf Leuckart was born. He is known to be one of the initiators of modern parasitology. Leuckart described the complicated life histories of various parasites, including tapeworms and the liver fluke, and demonstrated that some human diseases, such as trichinosis, are caused by multicellular animals of the various wormlike phyla. “Nowhere is it more true that “prevention is better than cure,” than in the case of…
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chemistry
August Kekulé and the Carbon Ring Structure

August Kekulé and the Carbon Ring Structure

Tabea Tietz
On July 13, 1896, German organic chemist Friedrich August Kekulé passed away. Being one of the world’s leading chemists of his time, he is best known for devising the ring structure of carbon atoms in organic molecules and became the principal founder of the theory of chemical structure. August Kekulé Background August Kekulé was born on September 7, 1829 in Darmstadt as son of a civil servant. After graduating from secondary school, in 1847…
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chemistry
Justus von Liebig and the Agricultural Revolution

Justus von Liebig and the Agricultural Revolution

Harald Sack
On May 12, 1803, German chemist Justus Freiherr von Liebig was born, who made major contributions to agricultural and biological chemistry. He is probably best known as the “father of the fertilizer industry” for his discovery of nitrogen as an essential plant nutrient. The acquisition of a new truth is like the acquisition of a new sense, which renders a man capable and recognizing a large number of phenomena that are hidden…
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physics
Max Delbrück – Co-founder of Modern Molecular Biology and Genetics

Max Delbrück – Co-founder of Modern Molecular Biology and Genetics

Harald Sack
On September 4, 1906, German biophysicist and Nobel laureate Max Delbrück was born in Berlin. His best known achievement for that he won the Nobel prize was the discovery that bacteria become resistant to viruses (phages) as a result of genetic mutations. “If you’re too sloppy, then you never get reproducible results, and then you never can draw any conclusions; but if you are just a little sloppy, then when you see…
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chemistry
Carl Remigius Fresenius and the Analytical Chemistry

Carl Remigius Fresenius and the Analytical Chemistry

Tabea Tietz
On December 28, 1818, German chemist Carl Remigius Fresenius was born. Fresenius is known for his studies in analytical chemistry. He devised a method for systematic identification and separation of individual metal and non-metal ions, selecting the most suitable reactions from the many that were known. Early Years Carl Remigius Fresenius was born in Frankfurt am Main, Germany, the son of Jakob Samuel Heinrich Fresenius, a lawyer with a doctorate in law. After…
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