A
good summary on ozone depletion
A good summary on greenhouse gases
The most important
greenhouse gases
A good summary on global
warming
An attempt
to measure climatic history
WebElements
(a neat way to look at periodic trends; this link plunks you into Cu's electronic
structure)
How CD-R and CD-RW media work (in detail)
NIST Chemistry WebBook (A
great place to find thermochemical and spectral data!)
Chemfinder (An online version
of the Merck Index, if you don't mind pop-up ads and can do without application
information.)
The Why Files
How Stuff Works
The Internet FAQ Consortium
About leaded gasoline
How water
softeners work
How car engines work
How diesel engines work
All
about candle flames