Timeline for the development of atomic structure. Democritus (<1704) to Fermi (1950s+.)
Part of the 'The Organometallic HyperTextBook'. Hydride complexes contain a metal-hydrogen bond, bu...
A summary of the foundations for our understanding of atomic structure.
Interactive site that draws Penrose tilings and their generalizations.
[Reprint] Follow-up to his landmark 1911 paper.