The early development of the screw propeller. Propeller geometry. The propeller environment. The ship wake field, propeller performance characteristics.

Idiot Genius: Willa Snap and the Clockwerk Boy is the first book in a new sci-fi polypunk series by Richard Due, author of the award-winning Moon Realm series. What¿s it about? Here¿s Willa (she's eleven):Ever wonder why some crazy scientist hasn¿t blown up the world? I used to wonder about it all the time. Actually, I was pretty sure my mom would be the one to do it.But now I know better. It turns out there¿s a force working hard to keep the world from going KABLOOEY.Who are these people? Wait for it:Idiots. Yep, you heard me right.How do I know? Well, apparently, I¿m an Idiot. At least, according to the Geniuses I am. Confused? I¿m not surprised. You¿re probably an Idiot too. It all began on a Thursday at precisely 8 a.m. I was standing in the family room of our lovely two-story house, directly across the street from Squirrel Brand Park in Cambridge, Massachusetts. The same family room that, in a few minutes, I would never ever, ever see again¿ever.