physics, mathematical physics, philosophy of physics
theory (physics), model (physics)
experiment, measurement, computable physics
Axiomatizations
Tools
Structural phenomena
Types of quantum field thories
This are puzzles that aren’t very technical at first, that get deeper and more complicated the more you think about them. John Baez has imagined writing a book on these someday.
Last revised on September 16, 2009 at 11:55:22. See the history of this page for a list of all contributions to it.