1. Complementarity before uncertainty

   • Sandro Petruccioli

   OriginalPaper 10 August 2011 Pages: 591 - 624

2. History of the Lenz–Ising model 1965–1971: the role of a simple model in understanding critical phenomena

   • Martin Niss

   OriginalPaper 21 August 2011 Pages: 625 - 658

3. The quest for the size of the universe in early relativistic cosmology (1917–1930)

   • Giulio Peruzzi
   • Matteo Realdi

   OriginalPaper 20 October 2011 Pages: 659 - 689