Gotta love Wikipedia.

I admit my cracker @$$ had no clue what a street sweeper is. I am just not urban enough anymore. So, I have WIKIPEDIA on the internet. I secretly have used it for this and that, but could not pronounce it. So anycrap, I started searching around on the site and realized its got everything here. And links to items associated with everything. Wow. What a way to blow 4 hours at work. Awesome.