You can't handle the ....oh never mind...
Here is a really great site I use to teach and for info...you can't beat it .
Excellent new tech stuff...www.toolbase.org.
Now get lost........
Made in the
Another great site with cross sections of everything you can think of..www.buildabetterhome.org/
I just can't help myself....
More information to get lost in...This one is a home energy audit.www.eeba.org/technology/publications/hec/default.htm