http://www.math.ucr.edu/home/baez/physics/
许多常见问题的一些思考,仅供参考,
This is the web version of the Usenet Physics FAQ (Frequently Asked Questions). Its purpose is to provide good answers to questions that have been discussed often in sci.physics and related usenet newsgroups. The articles in this FAQ are based on those discussions and on information from good reference sources. That does not mean that they are always perfect and complete. If you have corrections, updates or additional points to make please send an email to the editor, Don Koks (his cv is here).