Yinsen:  That does n't look like the Jericho missile .
Tony Stark: That 's because it is a miniaturized arc reactor . I 've got a big _ one _ powering my factory at home .
Yinsen: What will it generate ?
Tony Stark: If my math is right - and it always is - three gigajoules per second .
Yinsen: That could run your heart for fifty lifetimes !
Tony Stark: Yeah ... or something big for fifteen minutes .