Adam Jones's (Tool's Guitarist) Effects?

[blindreefer]

Tool has some crazy drumming...we all know that right?
but the guitarist is pretty badass too. Not the way your dad
thinks of badass as being able to play then entire ending solo
from Freebird. No, he's badass because of the different ways
he can make his guitar sound using effects.

Ive been trying to figure out for myself what it is he is doing
to get such strange sounds out of his guitar and was wondering
if you could help me. I'll throw out an example...

in Jambi, theres a part about four minutes into
the song where he starts playing long drawn out notes

what equipment or technique is he using?

but if there is any other cool things he does that you know about
let me know. thanks