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Chemistry lab of Altdorf University in 18th century
Chemistry laboratory at Altdorf University near Nuremberg, XVIII century vintage engraving
Doctorate presentation at Altdorf University, 18th century
Doctorate at Altdorf University near Nuremberg, XVIII century vintage engraving
Anatomy lesson at the medical college, XVII century
Anatomy lesson at the University medical college, year 1616
Battery – Daniell cell – section and working asset
Middle ‘800 battery: an electric cell that produces electricity from a chemical reaction. The first battery was invented by Alessandro Volta in 1800 and then improved by Daniell in 1836
Fresnel lens (lighthouse lens) working and section
Wood engraving drawn by A. Jahandier, engraved by C. Laplante, taken from from “L’èlectricitè” by J. Baille, Paris – Hachette 1868. Multi-part lens for use in lighthouses developed by Augustin-Jean Fresnel, French physicist.
Fluids thermal expansion: the volume of a fluid increases when temperature rises
By heating a flask full of water it may be observed that as the temperature raises the water expands and its density decreases.