Tag: periodic table

1862 – De Chancourtois' Telluric Screw

The French geologist Alexandre-Émile Béguyer de Chancourtois was the first scientist to see the periodicity of elements when they were arranged in order of their atomic weights. Credited with being the original discoverer of the periodicity of elements and the originator of the three-dimensional method of element arrangement and representation. He drew the elements as a continuous spiral around a metal cylinder divided into 16 parts. The atomic weight of oxygen was taken as 16 and was used […]

Added by: Fanny Chevalier. Category: Uncertain  Tags: chemistry, periodic table, telluric screw


1898 – Crookes' Vis Generatrix

Model of Crookes’ "Vis Generatrix" made in 1898, built by his assistant, Gardiner. From: Proc. R. Soc. Lond. 63, 408. The vertical scale represents the atomic weight of the elements from H = 1 to Ur = 239. Missing elements are represented with a white circle. Similar elements appear underneath each other. With this model, Crookes was trying to visualize the hypothetical relationship between various elements in three dimensions. See all the other entries with the tag "periodic table" to see […]

Added by: Fanny Chevalier. Category: Passive physical visualization  Tags: chemistry, crooke, generatrix, periodic table


1940s – Stedman's 3D Periodic Table

Dr. Don Stedman from the National Research Council Canada designed this 3-D periodic table in the 1940s. Stedman considered many factors and characteristics of the elements as he designed his models. While in this model all the usual groups of elements are found, changes from one group to another are also represented, and their origins are more easily understood. Stedman believed that his model gave more insight into “the orderly development and classification of the elements.” Source: […]

Added by: Devon Elliott. Category: Passive physical visualization  Tags: chemistry, periodic table, science


2010 – Quipu of the Periodic Table

As a result of bringing together each pair of periods in a single function or binod, the author has found a new regular on the subject, which has been defined as a new quantum number, since the number of orders or regulations binod growth elements in the table, under the appearance of pairs of new types of quantum structures or periods whose organization responds to a simple mathematical function: a parable of the type Y = 4 X ^ 2 - In this case report: a) That the strings correspond to […]

Added by: Fanny Chevalier. Category: Passive physical visualization  Tags: chemistry, periodic table, quipus