Thanks to Gary Corby and Stephanie Thornton for hijacking yesterday's post with talk of fighting the Roman Civil War using steam technology.
I'd like to report that, according to some basic research, the possibilities did exist for Archimedes to have used steam power.
As I said yesterday, Hero of Alexandria was the first one to develop the steam engine. That's an important distinction because Archimedes (a man many said thought millenia ahead of his time) is supposed to have developed a steam-powered cannon.
The Mythbusters tested his design, taken from a more-than-a-little vague drawing done by my favorite Rennaissance inventor -- Signore da Vinci -- and though they were unable to prove Archimedes' steam cannon worked, the fact that he's said to have even done it is enough for an industrious writer to play with.