Wolfgang's signatures

• God is real, unless declared integer.


• "Everything should be made as simple as possible, but not simpler." - Albert Einstein


• In theory, there is no difference between theory and practice. In practice, however, there is.

Handcrafts

http://dev.origami.com/diagram.cfm - site origami with diagrams in pdf format

Physics for kids

1. http://www.motionmountain.net/ - THE FREE PHYSICS TEXTBOOK, Motion - galilean motion, special relativity, gravitation and relativity, classical electrodynamics, quantum theory, particles, electromagnetism, motion without motion: space, time and particles.