1. Charles Janet is known for his left-step periodic table of chemical elements.
21 Facts About Charles Janet
1. 2.
Charles Janet married Berthe Marie Antonia Dupont, the daughter of the owner, in November 1877, and worked there for the rest of his life, finding time for research in various branches of science.
3.
Charles Janet worked on plant biology and wrote a series of papers on evolution.
4.
Charles Janet was an inventor and designed much of his own equipment, including the formicarium, in which an ant colony is made visible by being formed between two glass panes.
5.
In parallel with his professional activities, Charles Janet began a university course at the Sorbonne in 1886.
6.
Charles Janet became a member of the French Entomological Society and the French Zoological Society.
7.
Charles Janet attracted the interest of journalists who described the public's interest in ants.
8.
Charles Janet assembled a collection of fossil and prehistoric pieces.
9.
Charles Janet developed a method for preserving the fragile shells of these geological layers.
10.
Charles Janet invented a vertical artificial nest that remained a tool for entomologists for a long time.
11.
Charles Janet then performed in-depth studies on the internal anatomy of ants, where he endeavored to show their organization in metameres.
12.
Charles Janet demonstrated that these muscles evolve into lipid cells, providing the necessary energy for this queen who does not feed during the long months it takes to establish her colony.
13.
Charles Janet gradually sought to link ethology with insect physiology through histological sections.
14.
Charles Janet is one of those great workers to whom justice is done only after their death.
15.
Charles Janet was interested in the properties of atoms and the organization of their nuclei.
16.
Charles Janet devotes an entire chapter of his latest work to Charles Janet, whom he sees as a minor contributor in terms of fame, but major in terms of ideas.
17.
Charles Janet started from the fact that the series of chemical elements is a continuous sequence, which he represented as a helix traced on the surfaces of four nested cylinders.
18.
Charles Janet placed the actinides under the lanthanides twenty years before Glenn Seaborg, and he continued the series to element 120.
19.
Charles Janet believed that no elements heavier than number 120 would be found, so he did not envisage a g block.
20.
Charles Janet died just before the discovery of the neutron, the positron and heavy hydrogen.
21.
Charles Janet's work was championed most notably by Edward G Mazurs.