I know, I know. You're probably wondering how exciting parabolas can actually be, right? Well, it turns out that, in the remarkably capable hands of mathematical rambler/artist/stream-of-conscious-doodle-wizard Vi Hart, the answer is: pretty damn interesting.
If you're already familiar with Hart, then she needs no introduction — just sit back and enjoy the ride. If you AREN'T familiar with her work, I recommend starting with this video on stars and factoring, then surrendering your productivity to the time-suck that is her YouTube Channel. You won't be disappointed.