O.K., this is the first chance I've had even to see this surprising but very welcome (and timely) addition to this forum, let alone comment on it, so let's hope I don't miss anything.
We get off to a really good start here with Bullmoose chasing Katie (with a hairbrush!) which, come to think of it, is pretty much where we left off last time

! I can't think of a better way to begin Katie's new adventure as it's quite a funny, if expected, image. I couldn't help but noticing and being struck by all the blue coloring in different shades in panels 1-3. Now, obviously this isn't going to be anything like that "Blue World" issue of
Swamp Thing (see 2nd series issue #56) way back when, with the colorist having to color everything, even Swampy himself, with various shades of blue(!), but I liked the coloring and thought it at least deserved a mention.
I won't say anything about the jiggling that follows because it's already been adequately covered by others. Phil mentioned, in discussing Katie's rather preposterous equation, that the product of the first two terms would be zero. There's actually a third joke here (the first being the silly equations in old sci-fi movies, or perhaps the sight gag of Katie bending over), namely that Katie's equation
actually turns out to be right: ignoring the "bottom" line, the first line is left with
FANNY + HAND which equals the spanking Katie's sure to get later on

.
Of course, that won't help her build a time machine, so we'll chalk up her ability to do so to artistic license, and any contraption that has to do with spanking (everyone remember the DAN-O-MATIC?) is fully licensed around here

. Even so, Katie's ability to deal with advanced physics may well be doubted

, which probably explains why her time machine takes her further back than she intended.
What remains is exposition and I don't need to dwell on it. Suffice it to say that we're off to a good start, and B00m himself promises (panel 14) that "I think it's safe to say, knowing Katie, that she's going to get a spanking before this adventure is over!"
