Data and charts of common use

This means to be a collection of data of common use in the work of scientific research. We start with the couple of tables that probably are the most used and useful for a great number of researchers: the periodic table of elements (i.e. the Mendeleev table) and the conversion tables of the measure units.

This "shy" beginning should not mislead: the project is to make this section a truly useful and comprehensive collection of tables, addressed to any kind of researchers, indexed and easily searchable.
Though, this would be a very ambitious and unlikely project, without the support of the researchers themselves; thus, if you have any suggestions about data that you would like to have at hand while working, please write us at: