Science & Technology

Zinc: the galvanizing chameleon

Jules Raulin, a student of Louis Pasteur, made a seminal discovery on zinc’s essential role in a microorganism’s growth. 150 years later, growing questions about this integral and essential element revolve around its purpose for our everyday lives.

Philosophy & History

The Home Front: Hardly a Refuge from War

To complement and complicate the understanding of German colonialism are also the stories of German female authors like Helene von Falkenhausen, Else Sonnenberg and Margarete von Eckenbrecher, colonial settlers in Southwest Africa who also experienced the German-Herero Colonial War first hand. How did they portray women’s stories and experiences in the home front back then?

Science & Technology

Fluorine: The most reactive and indispensable element in our daily lives

Fluorine (atomic symbol: F) is the 13th most common element in the earth crust and the lightest member of the halogen group, which is also called group 17 in the Periodic System of Elements. Under standard conditions, fluorine is a diatomic gas with a shade of yellow colour. It exhibits a distinct odour significantly different from that of the other halogens; chlorine (Cl), bromine (Br) and iodine (I).

Science & Technology

Chromium: Are we red-green blind regarding its biological chemistry?

The legendary traffic lights in Berlin, the “Ampelmännchen”, symbolise the opposite biological functions of chromium compounds in two major oxidation states: one for health and the other for disease. In other words, green stands for “go and safe”, red stands for “stop and danger”.

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