Jonas Ferdinand Gabriel Lippmann: The pioneer of color photography or primus inter pares

The Dispositional Genome: Primus Inter Pares

According to the proponents of Developmental Systems Theory and the Causal Parity Thesis, the privileging of the genome as “first among equals” with respect to the development of phenotypic traits is more a reflection of our own heuristic prejudice than of ontology the underlying causal structures responsible for that specified development no more single out the genome as primary than they do o...

Prof. Dr. Joseph Sebrechts: "primus inter pares".

“Bruges possesses many treasures of art from previous centuries, but the living treasure of Bruges is certainly Professor Sebrechts” (). With these words, Queen Elisabeth honoured the surgeon with whom she had closely worked with the Belgian Red Cross (Fig. 1). A few weeks later, on Easter morning, March 28 1948, Joseph Sebrechts passed away due to bleeding oesophageal varicose veins, as a cons...

Gabriel Lippmann and the Capillary Electrometer

Early workers in the field of potentiometry faced a serious problem. The type of cell commonly used in potentiometric studies could supply only a tiny current and often had a high internal electrical resistance. If the electromotive force (emf) of such a cell is to be measured accurately, the apparatus must draw essentially no current from the cell. One obvious approach is to oppose this emf wi...

Ferdinand Sauerbruch: Pioneer Thoracic Surgeon.

Lippmann photography: its history and recent development

More than one hundred years ago Gabriel Lippmann recorded the first permanent colour photographs in France. His technique based on recorded light interference structures in an emulsion produced unique colour photographs. It is known as interferential photography or interference colour photography, as well as Lippmann photography. This type of direct colour photography was rather complicated, wh...