1. Pipe flow: a gateway to turbulence

   • Michael Eckert

   OriginalPaper Open access 02 October 2020 Pages: 249 - 282

   

2. Operator calculus: the lost formulation of quantum mechanics

   • Gonzalo Gimeno
   • Mercedes Xipell
   • Marià Baig

   OriginalPaper 07 October 2020 Pages: 283 - 322

   

3. Hobbes’s model of refraction and derivation of the sine law

   • Hao Dong

   OriginalPaper 02 November 2020 Pages: 323 - 348

   

4. BM 76829: A small astronomical fragment with important implications for the Late Babylonian Astronomy and the Astronomical Book of Enoch

   • Jeanette C. Fincke
   • Wayne Horowitz
   • Eshbal Ratzon

   Original Paper 21 December 2020 Pages: 349 - 368