  In this paper, we use resource-bounded dimension theory to investigate
polynomial size circuits. We show that for every $i\geq 0$, $\Ppoly$ has $i$th
order scaled $\pthree$-strong dimension 0. We also show that $\Ppoly^\io$ has
$\pthree$-dimension 1/2, $\pthree$-strong dimension 1. Our results improve
previous measure results of Lutz (1992) and dimension results of Hitchcock and
Vinodchandran (2004).
