Continuing the chemistry thread (Hey, its Friday!)

Thermite consists of iron oxide and powdered aluminum. Will burn through just
about anything.

Saw a demonstration down on the Mall (DC). Person used an aluminum tube, with
rusty steel wool. Ignited it with a propane torch, then pushed it through a
chunk (12 inches thick) of concrete. Of course a couple feet of the pipe
wasn't there anymore either...

Left a lasting impression on me!

How it works: The iron oxide provides the oxygen. Add heat, and the oxygen is
released in quantity and in proximity to the aluminum which then oxidizes
VERY rapidly, producing immense quantities of heat (1500 degrees or more..I
forget if it was F or C).