Who has not seen it hanging from the ceiling in endless hours of chemistry lessons, the large Periodic Table of Chemical Elements with its symbols, atomic numbers and atomic weights? This system was chosen by the United Nations as the theme of 2019:
No sooner had a new regulation enabling the Federal Polytechnic School (now ETH Zurich) to award doctorates come into force on 1 October 1909 than half a dozen applications were submitted. The final of these first six was from a woman.
Switzerland must have seemed like paradise to him. After one and a half years in POW camp in Germany, Jean Chopin, a twenty-five-year-old French infantryman, was allowed to leave for neutral Switzerland in the spring of 1916. Finally, after an interruption of almost three years, he was able to take up his academic studies again in the autumn of 1917.
The Musaeum hermeticum reformatum et amplificatum was published 1678 in Latin in Frankfurt. As the title suggests, this is the revised version of an earlier edition of Lucas Jennis, which was published in 1625 and is very rare. The Musaeum tries to assemble in a
By their very nature, texts on alchemy are largely inaccessible, difficult to comprehend and often have an obscure edition history – and none more so than Heinrich Kunrath’s Amphitheatrum Sapientiae Aeternae. As Umberto Eco writes, while the posthumous Hanau edition of this work was